Navigation (Radio) Regulations (Cth)
REGULATIONS UNDER THE NAVIGATION ACT 1912-1956.*
Dated this twenty-sixth
day of June , 1959
W.J. Slim
Governor-General.
By His Excellency’s Command,
Minister of State for Shipping and Transport.
NAVIGATION (RADIO) REGULATIONS.
Part I.—Preliminary.
Part I.—Preliminary (Regulations 1-5).
Part II.—General Provisions (Regulations 6-13).
Part III.—Radiotelegraph Ships (Regulations 14-30).
Part IV.—Radiotelegraphy Equipment in or for Lifeboats (Regulations 31-33).
Part V—Radiotelephone Ships (Regulations 34-44).
Part VI.—Transitional Provisions (Regulations 45-57).
“approved” means approved by the Minister, the Postmaster-General or an authorized officer;
“at sea”, in relation to radio watch-keeping, means the period occupied in a voyage between the berth at one port of call and the berth at the next port of call;
“authorized officer” means a person who is an authorized officer for the purposes of regulation 26 of the Wireless Telegraphy Regulations;
* Notified in the
4324/58.—Price 2s. 3d. 6/28.5.1959.
“auto-alarm” means an apparatus of an approved type for automatically receiving and registering an alarm signal, being apparatus that complies with the requirements specified in the Fifth Schedule;
“Class I. ship” means a passenger ship carrying, or authorized to carry, more than two hundred and fifty passengers;
“Class II. (
a ) ship” means a passenger ship that is not a Class I. ship;“Class II. (
b ) ship” means a cargo ship of not less than one thousand six hundred tons;“Class III. ship” means a cargo ship of less than one thousand six hundred tons but of not less than seven hundred and fifty tons;
“Class IV. (
a ) ship” means a cargo ship of less than seven hundred and fifty tons that is not a Class IV. (b ) ship;“Class IV. (
b ) ship” means a sailing ship equipped with auxiliary power;“connected” means electrically connected;
“equipment” means equipment forming part of a radio installation;
“existing installation” means—
(
a ) an installation wholly installed before the commencement of these Regulations; or(
b ) an installation part of which was installed before the commencement of these Regulations and the remainder of which consists either of—
(i) parts installed in replacement of identical parts;
or
(ii) parts which comply with the requirements of these Regulations;
“existing ship” means a ship the keel of which was laid before the commencement of these Regulations;
“mile” means nautical mile;
“new installation” means an installation installed on a ship after the commencement of these Regulations and includes an installation which replaces an existing installation;
“new ship” means a ship the keel of which was laid after the commencement of these Regulations;
“operating position”, in relation to any equipment, means the position normally occupied by a person when operating that equipment;
“radio surveyor” means a person, being a person skilled with regard to radio installations, appointed under section 190 of the Act to be a surveyor;
“radiotelegraph room” means a room or rooms exclusively appropriated for the operation of radio equipment;
“radiotelegraph ship” means a ship equipped with a radiotelegraphy installation;
“radiotelephony distress frequency” means the frequency of two thousand one hundred and eighty-two kilocycles per second;
“radiotelephone ship” means a ship equipped with a radiotelephony installation;
“radio watch” means, in the case of a radiotelegraph ship, listening on the frequency of five hundred kilocycles per second and, in the case of a radiotelephone ship, listening on the frequency of two thousand one hundred and eighty-two kilocycles per second;
“ship” means a ship which is—
(a) registered in Australia;
(b) engaged in the coasting trade; or
(
c ) engaged in the carriage of passengers from a port in Australia to a port outside Australia,
but does not include—
(
d ) a Safety Convention ship in respect of which there is in force a valid Safety Convention certificate showing that the ship—(i) complies with such of the requirements of the Safety Convention as relate to radio installations and radio navigational aids; or
(ii) is wholly exempt from those requirements or is partly exempt and complies with those requirements to the extent to which she is not exempt;
(
e ) a ship trading exclusively between ports not more than twenty-five miles apart;(
f ) a ship being towed by another ship where that other ship is provided with a radiotelegraphy or radiotelephony installation that complies with these Regulations;(
g ) a river and bay ship; or(
h ) a sailing ship not equipped with auxiliary power.“silence periods” means—
(
a ) in the case of a radiotelegraph ship—periods of three minutes beginning at the expiration of fifteen minutes and forty-five minutes, respectively, after each hour of each day reckoned according to Greenwich Mean Time; and(
b ) in the case of a radiotelephone ship—periods of three minutes beginning at each hour, and at the expiration of thirty minutes after each hour, of each day reckoned according to Greenwich Mean Time;“the Act” means the
Navigation Act 1912-1956;“the Wireless Telegraphy Regulations” means the Wireless Telegraphy Regulations in force from time to time under the
Wireless Telegraphy Act 1905-1950.
(2.) Where a word or phrase used in these Regulations is defined in section 187a of the Act, that word or phrase as so used shall, unless the contrary intention appears, have the meaning given to it in that section.
(3.) In these Regulations—
(
a ) a reference to the tonnage of a ship shall be read as a reference to the gross registered tonnage of the ship;(
b ) a reference to a Schedule shall be read as a reference to a Schedule to these Regulations;(
c ) a reference to a wave or signal of type A1 shall be read as a reference to radiotelegraphy by the keying of a continuous wave on and off;(
d ) a reference to a wave or signal of type A2 shall be read as a reference to amplitude modulated radiotelegraphy by the keying of a modulating audio-frequency or of an emission continuously modulated by an audio-frequency;(
e ) a reference to a wave or signal of type A3 shall be read as a reference to double sideband amplitude modulated radio-telephony; and(
f ) a reference to type B waves shall be read as a reference to damped waves.
(4.) Parts II. to V. (inclusive) of these Regulations shall be read and construed subject to Part VI. of these Regulations.
(
a ) exempt a Class III. ship from all or any of the requirements of Part III. of these Regulations;(
b ) exempt a Class IV. (a ) ship or a Class IV. (b ) ship from all or any of the requirements of Part V. of these Regulations; and(
c ) exempt a ship registered in a country to which the Safety Convention does not apply from all or any of the requirements of Division 6a of Part IV. of the Act and of these Regulations.
(2.) Any such exemption may be unconditional or subject to such conditions as the Minister thinks fit.
Part II.—General Provisions.
(2.) Subject to these Regulations, a Class
IV. (a) ship or a Class IV. (
(3.) The main and emergency radiotelegraphy transmitters in a Class HI. ship may be combined in a single instrument, if that instrument complies with the requirements of the First Schedule in relation to those transmitters.
(
a ) when undergoing the vibration, dry heat and low temperature tests in accordance with the Third Schedule;(
b ) when subjected to the damp heat test in accordance with that Schedule; and(
c ) immediately after undergoing, in accordance with that Schedule, such other tests specified in that Schedule as are applicable to the equipment.
(2.) Equipment for use in the open, or in an open boat, shall be such that, after undergoing the mould growth test specified in the Third Schedule, mould growth is not present on it.
(
a ) in the case of equipment specified in the Fourth Schedule—fifty volts; or(
b ) in the case of other equipment—two hundred and fifty volts.
(2.) Parts and wiring to which this regulation applies shall be protected from accidental access and, except in the case of a generator or converter, shall be isolated automatically from all sources of electrical energy when the means of protection are removed.
(3.) Capacitors in a transmitter shall be capable of being discharged.
(2.) Means shall be provided for the charging from the ship’s main source of electrical energy of batteries provided as a source of electrical energy for any equipment.
(3.) In the case of a new installation, if the means of charging the batteries is a rotary converter, an alternative means of charging the batteries shall be provided.
Radio log-book.
(2.) The master of a ship equipped with a radio installation shall—
(
a ) cause the radio log-book of the ship to be kept in the room or place from which the radio installation is operated; and(
b ) upon request by a radio surveyor, cause the radio log-book to be made available for inspection by the radio surveyor.
(3.) The master of a ship equipped with a radio installation and, if the ship carries more than one radio officer as part of her crew, the first radio officer shall inspect and sign the radio log-book once each day.
(4.) On the expiration of the articles of agreement of a ship equipped with a radio installation, the master of the ship shall cause the radio log-book to be delivered to the superintendent at the port at which the articles expire.
Penalty: Fifty pounds.
Part III.—Radiotelegraph Ships.
(2.) The radiotelegraph room shall be situated as high as practicable in the ship.
(3.) A radiotelegraphy installation shall be installed in a position where—
(
a ) it will be protected against disturbance of its effectiveness by water or by extremes of temperature; and(
b ) it will not affect a ship’s compass,
being a position, in the case of a Class III. ship, approved by a radio surveyor.
(4.) A room or place from which a radiotelegraphy installation is operated shall be provided with—
(
a ) an efficient two-way means of calling and voice communication with the bridge and any other place from which the ship is normally navigated, the method of communication being—(i) by a voicepipe or a telephone, or by other means which, in the opinion of a radio surveyor, is equally efficient; and
(ii) independent of the main communication system of the ship and of the ship’s main source of electrical energy;
(
b ) a reliable clock, equipped with a dial not less than five inches in diameter and a centre second-hand, securely mounted in such a position that the entire dial can be easily and accurately observed from the operating position and, if the ship is provided with an auto-alarm, from the position normally occupied by a person testing the auto-alarm;(
c ) an electric lamp—(i) operated from the source of electrical energy required by sub-regulation (5.) of regulation 18 of these Regulations;
(ii) permanently arranged so as to be capable of providing adequate illumination of the operating controls of the main and emergency radiotelegraphy installations and of the clock referred to in the last preceding paragraph; and
(iii) controlled by two-way switches placed respectively near the entrance to the room or place from which the installation is operated and at the operating position;
(
d ) an additional electric lamp, for use as an inspection lamp, operated from the source of energy referred to in the last preceding paragraph, and provided with a flexible lead of sufficient length to enable all parts of the radiotelegraphy installation to be illuminated; and(
e ) a chair capable of being fixed at the operating position.
(5.) A complete list of equipment and spare parts carried on board a ship for the maintenance of the radiotelegraphy installation, being a list indicating where the equipment and spare parts are kept, shall be provided in each room or place on the ship from which the installation is operated.
(6.) A calibration table or calibration curve for each transmitter and receiver forming part of the radiotelegraphy installation on a ship shall, unless the transmitter or receiver, as the case may be, is directly calibrated, be provided in each room or place on the ship from which the installation is operated.
(7.) In the case of a new installation, a complete diagram of the installation as wired shall be provided in each room or place from which the installation is operated.
(2.) The Minister may exempt a ship from the requirement that it be fitted with an emergency aerial if he is satisfied that the fitting of such an aerial is, in all the circumstances, impracticable or unreasonable.
(3.) A ship exempted under the last preceding sub-regulation shall carry a spare aerial completely assembled for immediate erection.
(4.) Except in the case of a Class III. ship, each of the halyards used for supporting the main aerial shall be fitted with a safety loop between the masthead or other aerial support and an aerial insulator.
(5.) The safety loop shall consist of a part of the halyard, not less than three feet in length, the loop being closed by a link not more than one foot three inches in length with a breaking load not exceeding one-third of the breaking load of the aerial or the halyard, whichever is the less.
(6.) The lead-in insulators for the main and emergency aerials through which the transmitters are connected to the base of the aerials shall be protected against the effects of sea spray by the use of metallic tubes or shields.
(7.) A rigging plan of the aerials, showing—
(
(
(
c ) the height of the aerials in metres measured in the manner specified in sub-regulation (3.) of the next succeeding regulation,shall be provided in the room or place from which the radiotelegraphy installation is operated.
(8.) The main aerial and the emergency aerial (if any) shall, where practicable, be so rigged that damage to one will not affect the efficiency of the other.
(9.) The main aerial and the emergency aerial (if any) shall each be capable of being connected, as circumstances require, to—
(
(
(
(
(
(
a ) in the case of a Class I. ship, a Class II. (a ) ship or a Class II. (b ) ship—not less than one hundred and fifty miles for the main transmitter and not less than one hundred miles for the emergency transmitter; and(
b ) in the case of a Class III. ship—not less than one hundred miles for the main transmitter and not less than seventy-five miles for the emergency transmitter.
(2.) The range of a transmitter for the purposes of these Regulations shall be determined either by reckoning or by test, at the option of the owner of the ship.
(3.) The normal range of a radiotelegraphy transmitter determined by reckoning shall be ascertained—
(
a ) by calculating the product of the root mean square current in amperes at the base of the main aerial and the maximum height in metres of the aerial measured from the load line mark indicating the greatest depth to which the ship may at any time or place be submerged in accordance with the Navigation (Load Line) Regulations or, if there is no such mark on the ship, from the mean level of the surface of the water in which the ship is afloat; and(
b ) determining the range, having regard to that product, in accordance with the following table:—
Product. | Range in Miles. |
Not less than 76......................................................... | Not less than 150 |
Less than 76 but not less than 45................................. | Less than 150 but not less than 100 |
Less than 45 but not less than 34................................. | Less than 100 but not less than 75 |
Less than 34 but not less than 10................................. | Less than 75 but not less than 25 |
(4.) For the purposes of the last preceding sub-regulation, transmission shall be conducted on the frequency of five hundred kilocycles per second using signals of type A2 or type B, as the case requires.
(5.) The normal range of a radiotelegraphy transmitter determined by test is the distance to which signals of type A2 or type B can be transmitted by the transmitter over the sea by day under normal conditions on the
frequency of five hundred kilocycles per second so as to set up at the receiver a total root mean square field strength of not less than fifty microvolts per metre.
(2.) The rated voltage of the supply of electrical energy for the main equipment shall be maintained within a tolerance of plus or minus ten per centum.
(3.) The supply of electrical energy shall, if it is a direct current supply, be of correct polarity.
(4.) In a Class III. ship, not engaged on an international voyage, the supply of electrical energy may be derived from a battery or a set of batteries but, except in the case of a single battery on float charge where provision is made to the satisfaction of a radio surveyor to protect the equipment from the application of excessive voltage, a duplicate battery or set of batteries shall also be provided.
(5.) The emergency equipment shall include a source of electrical energy that is independent of the propelling power of the ship and of the rest of the ship’s electrical installation and is capable of being brought into immediate operation by means of a switchboard situated in, or readily accessible from, the room or place from which the radiotelegraphy installation is operated.
(6.) A source of electrical energy provided in a ship in compliance with the last preceding sub-regulation shall be of such capacity, and shall be so maintained at all times when the ship is at sea, as to be capable of supplying continuously for a period of six hours (whether or not it is in use for any other purpose) a total current equal to the sum of—
(
a ) the current required to operate the emergency transmitter with the key up;(
b ) three-fifths of the difference between the current required to operate the emergency transmitter with the key down and the current required to operate it with the key up;(
c ) the current required to operate the emergency receiver; and (d ) the current consumed by the electric lamp referred to in paragraph (c ) of sub-regulation (4.) of regulation 15 of these Regulations.
(
a ) the lamps referred to in paragraphs (c ) and (d ) of sub-regulation (4.) of regulation 15 of these Regulations;(
b ) the automatic keying device;(
c ) an auto-alarm; or(
d ) a direction finder.
Penalty: One hundred pounds.
Penalty: One hundred pounds.
(
a ) the ship’s radio log-book;(
b ) a copy of the latest editions of each of the following documents published by the International Telecommunication Union, Geneva:—
(i) Alphabetical List of Call Signs;
(ii) List of Coast and Ship Stations;
(iii) List of Radiolocation Stations;
(iv) List of Special Service Stations;
(v) Radio Regulations and Additional Radio Regulations annexed to the current International Telecommunication Convention;
(
c ) a copy of the latest edition of the Handbook for Wireless Operators published by Her Majesty’s Stationery Office, London; and(
d ) a copy of these Regulations.
(2.) There shall be carried on board a radiotelegraph ship not engaged on an international voyage—
(
a ) the ship’s radio log-book;(
b ) a copy of the latest edition of the List of Coast and Ship Stations published by the International Telecommunication Union, Geneva;(
c ) a copy of the latest edition of the Handbook for Wireless Operators published by Her Majesty’s Stationery Office, London; and(
d ) a copy of these Regulations.
(
a ) in the case of a Class I. ship—three radio officers;(
b ) in the case of a Class II. (a) ship or a Class II. (b) ship— two radio officers if the ship is to be at sea for not more than forty-eight hours between consecutive ports, and three radio officers if the ship is to be at sea for more than forty-eight hours between consecutive ports; and(
c ) in the case of a Class III. ship—one radio officer.
(2.) A radiotelegraph ship equipped with an auto-alarm shall carry, as part of her crew—
(
a ) in the case of a Class I. ship engaged on an international voyage—two radio officers;(
b ) in the case of a Class I. ship not engaged on an international voyage—one radio officer; and(
c ) in the case of a Class II. (a ) ship, a Class II. (b ) ship or a Class III. ship—one radio officer.
(3.) At least one radio officer carried as part of the crew of a ship registered in Australia or engaged in the coasting trade shall be a person who has had experience at sea in the operation of radiotelegraphy installations for a total of not less than—
(
a ) two years in the case of a Class I. ship;(
b ) one year in the case of a Class II. (a) ship; and(
c ) three months in the case of a Class II. (b ) ship,
and, in
the case of a passenger ship so registered or so engaged, at least one radio
officer on board the ship shall be the holder of a valid First Class Commercial
Operator’s Certificate of Proficiency in wireless telegraphy under the Wireless
Telegraphy Regulations or a certificate referred to in paragraph (
(4.) For the purposes of this regulation, a ship equipped with an auto-alarm that is not operating effectively shall be deemed not to be equipped with an auto-alarm.
(
a ) a valid First or Second Class Commercial Operator’s Certificate of Proficiency in wireless telegraphy under the Wireless Telegraphy Regulations; or(
b ) a valid certificate issued by an authority empowered in that behalf by or under a law of a Commonwealth country, being a certificate included in a class of certificates declared in writing by the Postmaster-General, or by an officer authorized by the Postmaster-General to make declarations under this regulation, to be the equivalent of either class of certificate referred to in the last preceding paragraph.
(2.) For the purposes of the last preceding sub-regulation, if—
(
a ) at the date of his intended engagement, the periods of experience at sea in the operation of radio installations of the holder of a certificate referred to in that sub-regulation during the period of two years immediately preceding that date do not amount in the aggregate to three months; and(
b ) the certificate was granted more than two years before that date,
the certificate shall be deemed not to be valid unless the holder satisfies the Postmaster-General, by re-examination or otherwise, that he still possesses the qualifications described in the certificate.
(3.) A person employed as a radio officer on a ship registered in Australia or engaged in the coasting trade shall, upon the request of a radio surveyor, produce his certificate of proficiency for inspection.
Penalty: Fifty pounds
(4.) For the purposes of these Regulations, a person is not qualified to be a radio officer on a ship not registered in Australia or engaged in the coasting trade unless he holds a valid certificate of proficiency or competence in wireless telegraphy granted by an authority empowered or recognized in that behalf by the law of the country in which the ship is registered.
(5.) A radio officer whose certificate of proficiency is suspended by the Postmaster-General under the Wireless Telegraphy Regulations shall be deemed not to be the holder of a valid certificate of proficiency during the period of the suspension.
(
a ) if the ship is not equipped with an auto-alarm—(i) in the case of a Class I. ship, a Class II. (
a ) ship or a Class II. (b ) ship—a continuous watch; and(ii) in the case of a Class III. ship—a watch of eight hours on each day during the times specified in the third column of the Seventh Schedule opposite to the reference in the first column of that Schedule to the waters in which the ship then is; and
(
b ) if the ship is equipped with an auto-alarm—(i) in the case of a Class I. ship engaged on an international voyage—a watch of sixteen hours on each day at the times specified in the second column of the Seventh Schedule opposite to the reference in the first column of that Schedule to the waters in which the ship then is; and
(ii) in the case of a Class I. ship not engaged on an international voyage or a Class II. (
a ) ship, a Class 11. (b ) ship or a Class III. ship—a watch of eight hours on each day at the times specified in the third column of the Seventh Schedule opposite to the reference in the first column of that Schedule to the waters in which the ship then is.
(2.) An auto-alarm provided on board a radiotelegraph ship shall be kept in operation at all times at which a manual radio watch is not maintained unless—
(
a ) the auto-alarm has broken down since the ship last put to sea; and(
b ) it is impracticable to repair it at sea so as to operate effectively.
(2.) Radio watch may be maintained by means of loudspeaker reception (or, if that is impracticable, may be dispensed with, except during the silence periods) for such periods as may be necessary to enable the radio officer on duty to perform other duties in compliance with these Regulations or to engage in communication on other frequencies in connexion with the business of the ship.
(2.) A radio officer who, under the last preceding sub-regulation, is required to put an auto-alarm in operation shall before going off duty—
(
a ) test the efficiency of the auto-alarm; and(
b ) immediately report the result of the test to the master of the ship or to the officer in charge of the navigation of the ship at that time.
(3.) A radio officer shall, if an auto-alarm is connected to an aerial when he goes on duty, immediately test the efficiency of the auto-alarm before making any adjustment to it.
(4.) While a radiotelegraph ship is at sea, the radio officer or, if the ship carries, as part of her crew, more than one radio officer, the first radio officer shall—
(
a ) where an emergency transmitter of the valve type is employed, test it at least once on each day connected with an artificial aerial that complies with the requirements specified in paragraph 47 of the First Schedule;(
b ) if the ship carries an emergency aerial, test the emergency radiotelegraphy transmitter connected with that aerial at least once during each voyage;(
c ) test, at least once on each day by voltmeter and once during each month by hydrometer, batteries that are a source of energy for the radiotelegraphy installation, the batteries being placed on normal load during voltage tests;(
d ) test any other sources of electrical energy provided for the emergency radiotelegraphy equipment at least once on each day; and(
e ) test the audible alarm circuits and the bells forming part of the auto-alarm installation at least once on each day.
Penalty: Fifty pounds.
(2.) The last preceding sub-regulation does not apply if the main transmitter has broken down and cannot be repaired while the ship is at sea.
(
a ) the name of each radio officer who goes on duty and the times at which he goes on and off duty;(
b ) the identifying number of each message transmitted or received, together with the time and date of its transmission or reception, the station to which each message is transmitted and the station from which each message is received; and(
c ) details of incidents occurring which relate to the radiotelegraphy installation or the operation of that installation and which appear to the radio officer on duty to be of importance to the safety of life at sea and, in particular—(i) the full text of all messages transmitted or received which relate to immediate assistance required by persons in distress at sea or above the sea;
(ii) the full text of all messages transmitted or received which are preceded by a signal in general international use as an urgency signal or a safety signal;
(iii) a record of the radio watch maintained during each of the silence periods;
(iv) a record of the occurrence of any incident which affects the efficiency of the radiotelegraphy installation;
(v) a record of the tests conducted in accordance with sub-regulations (2.), (3.) and (4.) of regulation 26 of these Regulations, and of the results of those tests;
(vi) a record of the charging of batteries used as a source of energy for the radiotelegraphy installation; and
(vii) if the ship is equipped with an auto-alarm, details of any failure or repair of the auto-alarm.
(2.) An entry shall be made in the radio log-book of a radiotelegraph ship at least once each day recording the time shown by the clock in each room or place from which the radiotelegraphy installation is operated in comparison with Greenwich Mean Time, and any correction made in respect of that clock.
Penalty: Fifty pounds.
Part IV.—Radiotelegraphy Equipment in or for Lifeboats.
(2.) The master of the ship on which the lifeboat is carried shall not use the battery included in the radiotelegraphy installation of the lifeboat, or permit it to be used, except for the operation of the installation or of the searchlight provided on the lifeboat.
Penalty: Fifty pounds.
(
a ) cause the transmitter forming part of the installation or equipment to be tested with its artificial aerial; and(
b ) cause any batteries, other than self-priming batteries, which are a source of electrical energy for the installation or equipment to be tested by voltmeter, with the batteries on normal load, and by hydrometer and, if found not to be fully-charged, to be fully charged as soon as practicable.
Penalty: Fifty pounds.
(2.) The results of the tests referred to
in the last preceding sub-regulation shall be entered in the radio log-book or,
in the case of a Class IV. (
Part V.—Radiotelephone Ships.
(2.) A rigging plan of the fitted aerial showing—
(
a ) elevation and plan views of the aerial;(
b ) the measurements of the aerial in feet and inches; and(
c ) the maximum height of the aerial in metres measured from the lead-out insulator,
shall be provided and kept in an accessible place on the ship.
(2.) The range of a radiotelephony transmitter for the purposes of these Regulations shall be determined either by reckoning or by test, at the option of the owner of the ship.
(3.) The normal range of a radiotelephony transmitter determined by reckoning shall be ascertained by calculating the product of the root mean square current in amperes at the base of the aerial on the radiotelephony distress frequency and the maximum height in metres of the aerial measured from the lead-out insulator.
(4.) The transmitter shall be deemed to comply with the requirements of this regulation if the product so ascertained is not less than—
(
a ) 7.5 metre-amperes, where the aerial has a horizontal top-length of not less than one-half of its maximum height measured from the lead-out insulator; or(
b ) 12.8 metre-amperes in any other case.
(5.) The normal range of a radiotelephony transmitter when determined by test is the distance to which signals can be transmitted over the sea by day under normal conditions on the radiotelephony distress frequency so as to set up at the receiver, by the unmodulated carrier, a total root mean square field strength of not less than twenty-five microvolts per metre.
(2.) The supply of electrical energy shall, if it is a direct current supply, be of correct polarity.
(3.) The supply of electrical energy may be derived from a battery or a set of batteries, but except in the case of a single battery on float charge where provision is made to the satisfaction of a radio surveyor to protect the equipment from the application of excessive voltage, a duplicate battery or set of batteries shall also be provided.
(4.) The source of electrical energy provided in a ship in compliance with this regulation shall be of such capacity, and shall be so maintained at all times when the ship is at sea, as to be able to supply continuously for a period of six hours a total current equal to the sum of—
(
a ) one-half of the current required to operate the radiotelephony transmitter for the transmission of speech;
(
b ) the current required to operate the radiotelephony receiver; and(
c ) the current consumed by the electric lamp referred to in paragraph (d ) of regulation 39 of these Regulations.
(5.) When the batteries for the radiotelephony transmitter are not in use, each battery shall be capable of being fully charged within a period of not more than sixteen hours by the means of charging referred to in regulation 11 of these Regulations.
Penalty: One hundred pounds.
(
a ) the ship’s radio log-book;(
b ) a copy of the latest edition of the List of Coast Stations and Ship Stations published by the International Telecommunication Union, Geneva;(
c ) a copy of the latest edition of the Handbook for Wireless Operators published by Her Majesty’s Stationery Office, London; and(
d ) a copy of these Regulations.
(2.) There shall be carried on board a
radiotelephone ship not engaged on an international voyage the documents
specified in paragraphs (
(
a ) the installation shall be installed in as high a position as is practicable and in such a place that it will not affect a ship’s compass, being a position and place approved by a radio surveyor;(
b ) an efficient two-way means of communication shall be provided between the place of installation and the place from which the ship is normally navigated;(
c ) a reliable clock shall be securely mounted within the view of a person at the operating position of the installation;(
d ) an electric lamp shall be provided and shall—(i) be operated from the source of electrical energy referred to in regulation 36 of these Regulations;
(ii) be permanently arranged so as to be capable of providing adequate illumination of the operating controls of the installation and the clock referred to in the last preceding paragraph; and
(iii) be controlled by two-way switches placed respectively near an entrance to the room in which the installation is situated and at the operating position of the installation; and
(
e ) if the radiotelephone installation is not installed in the place from which the ship is normally navigated, there shall be provided at the loudspeaker referred to in regulation 41 of these Regulations a manual gain control which, when adjusted to the minimum position, permits an output from the loudspeaker of sufficient volume for the maintenance of an effective listening watch.
(2.) For the purposes of these Regulations, a person is not qualified to be a wireless signaller on a ship registered in Australia or engaged in the coasting trade unless he holds a valid Third Class Commercial Operator’s Certificate of Proficiency in wireless telegraphy and in wireless telephony under the Wireless Telegraphy Regulations.
(3.) For the purposes of the last preceding sub-regulation, if—
(
a ) at the date of his intended engagement, the periods of experience at sea in the operation of radio installations of the holder of a certificate referred to in that sub-regulation during the period of two years immediately preceding that date do not amount in the aggregate to three months; and(
b ) the certificate was granted more than two years before that date, the certificate shall be deemed not to be valid unless the holder satisfies the Postmaster-General, by re-examination or otherwise, that he still possesses the qualifications described in the certificate.
(4.) A person employed as a wireless signaller on a ship registered in Australia or engaged in the coasting trade shall, upon the request of a radio surveyor, produce his certificate of proficiency for inspection.
Penalty: Fifty pounds.
(5.) A wireless signaller whose certificate of proficiency is suspended by the Postmaster-General under the Wireless Telegraphy Regulations shall be deemed not to be the holder of a valid certificate of proficiency during the period of the suspension.
(2.) At all times while a radiotelephone ship is at sea, and a radio watch is not being maintained by a radio officer or wireless signaller or the radiotelephone installation is not being used in connexion with the business of the ship, a radio watch shall be maintained by means of loudspeaker reception at the place from which the ship is navigated.
42.—(1.) While a radiotelephone ship is at sea, the radio officer or if the ship does not carry a radio officer as part of her crew, the wireless signaller, shall test batteries which are a source of electrical energy for the radiotelephony installation by voltmeter at least once each week and by hydrometer at least once each month, the batteries being placed on normal load during voltage tests.
(2.) The radio officer or wireless signaller, as the case may be, shall test the radiotelephony installation once during the passage of the ship between each port at which the ship calls by communicating with a coast station.
Penalty: Fifty pounds.
(
a ) particulars of the test referred to in sub-regulation (2.) of regulation 42 of these Regulations; and(
b ) particulars of all distress messages transmitted or received.
Part VI.—Transitional Provisions.
(
a ) complies with such of the requirements of section 231 of the Navigation Act 1912-1952, and of the Navigation (Wireless Telegraphy) Regulations as in force immediately before the commencement of these Regulations, as would have been applicable to it if that section and those Regulations had continued in force; and(
b ) complies, in the case of equipment specified in the first column of the following table, from and including the first day of July, 1960, with the requirements specified in the second column of that table opposite to that equipment:—
First Column. | Second Column. |
Equipment. | Requirements. |
1. Main transmitter and main receiver |
|
2. Main transmitter |
|
(
a ) equipment which is part of an existing installation; or(
b ) equipment, being equipment referred to in regulation 45 of these Regulations, which is installed before the first day of July 1960.
(2.) Paragraph (
(
a ) complies with such of the requirements of section 231 of theNavigation Act 1912-1952, and of the Navigation (Wireless Telegraphy) Regulations as in force immediately before the commencement of these Regulations, as would have been applicable to it if that section and those Regulations had continued in force; and(
b ) on and after the first day of July, 1960, complies with the next succeeding sub-regulation,
regulation 7 of these Regulations does not apply to that auto-alarm and the ship shall, for the purposes of regulations 22 and 24 of these Regulations, be deemed to be equipped with an auto-alarm.
(2.) The radiation from the auto-alarm receiver shall not exceed 0.1 microvolt per metre when measured at a distance of one mile from the auto-alarm, or when tested in the manner specified in sub-paragraph (2.) of paragraph 15 of the Fifth Schedule.
THE SCHEDULES.
First Schedule. Regulation 6
RADIOTELEGRAPHY INSTALLATIONS.
Components.
1. A radiotelegraphy installation shall include—
(
(
(
(
(
Main Transmitter.
2.—(1.) Subject to the next succeeding sub-paragraph, the main transmitter shall be capable of being operated from the supply of electrical energy referred to in sub-regulation (1.) of regulation 18 of these Regulations and of being connected without delay to the main and emergency aerials referred to in regulation 16 of these Regulations.
(2.) The valve filaments in the main transmitter may, if approved in a particular case, be energized from batteries, not being batteries forming part of the emergency equipment referred to in sub-regulation (5.) of regulation 18 of these Regulations.
3. The main transmitter shall be capable of adjustment for the transmission of both type A1 and type A2 waves in the frequency range 405 kilocycles per second to 525 kilocycles per second.
4. The main transmitter shall be capable of transmitting continuously, but not simultaneously, radiotelegraphy signals on the frequencies of 500 kilocycles per second, 410 kilocycles per second, 425 kilocycles per second and 512 kilocycles per second.
First Schedule—
5. The main transmitter shall be capable of complying with all the requirements of this Schedule applicable to it when connected to an artificial load, one side of which is earthed, consisting of a resistance in series with a capacitance in each of the following combinations:—
(
(
(
(
(
6.—(1.) In this paragraph, a reference to the power of the main transmitter Is a reference to the total power developed in the artificial load referred to in the last preceding paragraph during a period when the transmitting key is depressed.
(2.) The maximum power of the main transmitter shall not, at any frequency within its range, be less than the prescribed number of watts.
(3.) For the purposes of the last preceding sub-paragraph, the prescribed number of watts is the number calculated in accordance with the formula—
where f is the frequency in kilocycles per second at which the test is made.
(4.) The main transmitter shall be so designed that its power can be reduced, either continuously or in steps of not more than 6 decibels, to not less than 2 watts and not more than 9 watts.
(5.) The main transmitter shall, when adjusted to develop its maximum rated power, be capable of—
(
a ) continuous operation for the transmission of radiotelegraphy signals at any speed up to 30 bauds; and(b) operation under steady marking or spacing conditions for a period of not less than 15 minutes.
7. When the main transmitter is transmitting type A2 waves, the depth of modulation shall be—
(
a ) when the power of the main transmitter is not less than 25 watts—not less than 80 per centum and not more than 95 per centum; and(
b ) when the power of the main transmitter is less than 25 watts—not less than 70 per centum and not more than 95 per centum.
8. The note frequency of the main transmitter shall not be less than 500 cycles per second or more than 1,200 cycles per second.
9. The main transmitter shall be capable of transmitting radiotelegraphy signals at all speeds up to 30 bauds without critical relay adjustment.
10. The main transmitter shall be capable of maintaining a frequency tolerance of plus or minus 0.1 per centum throughout every transmission without adjustment of controls, notwithstanding—
(
a ) variations of the impedance of the aerial or other load to which it is connected; or(
b ) variations of supply voltage not exceeding plus or minus 10 per centum.
First Schedule—
11.—(1.) The radio-frequency output of the main transmitter shall be free from frequency components due to spurious oscillations in any part of the transmitter.
(2.) The maximum power output of the transmitter at any harmonic of the radio-frequency shall not exceed 20 milliwatts, whether type A1 or type A2 waves are being transmitted.
(3.) When the main transmitter is transmitting dots at a speed of 30 bauds, 95 per centum of the total power radiated from the transmitter shall be radiated within plus or minus 100 cycles per second of the steady-state carrier frequency for type A1 waves and within plus or minus 2,500 cycles per second of the steady-state carrier frequency for type A2 waves.
12.—(1.) The main transmitter shall be so arranged that one operator can carry out, in not more than 10 seconds, all adjustments necessary to change it from operation on any one of the frequencies specified in paragraph 4 of this Schedule to operation on any other of those frequencies.
(2.) The main transmitter shall be capable of being operated on full power within 60 seconds after any part of it has been switched on.
(3.) If the main transmitter is so designed and constructed that it is necessary to delay the application of certain voltages for a period after it has been switched on, the delay shall be automatically provided by a delay switch.
(4.) The main transmitter shall be provided with a device which, when the transmitting key is not depressed, automatically brings into operation the main receiver in conjunction with which the transmitter is operated and means shall be provided for suppressing interference with reception caused by the transmitter.3
(5.) The main transmitter shall be capable of being used in conjunction with an automatic keying device.
13.—(1.) The main transmitter shall be so designed and constructed that when the transmitting key is depressed the aerial can be disconnected or the output can be short-circuited without damage being caused to the transmitter.
(2.) Means shall be provided for protecting the main transmitter from damage caused by excessive current or voltage.
14. If the main transmitter is designed for use with piezo-electric crystals, it shall be capable of being used with a piezo-electric crystal unit conforming to an approved specification.
15.—(1.) An artificial aerial suitable for testing the main transmitter on full power shall be provided.
(2.) The artificial aerial shall include an indicator or lamp to indicate the passage of radio-frequency currents.
16. The main transmitter shall be provided with an aerial ammeter.
Main Receiver.
17.—(1.) The main receiver may consist of a single unit or of separate units each of which is capable of reception on a section or sections of the frequency range specified in the next succeeding paragraph.
(2.) The main receiver or, if it is not a single unit, each unit shall be capable of being connected without delay to the main and emergency aerials referred to in regulation 16 of these Regulations.
(3.) Each unit of the main receiver shall bear a plate stating the frequency range which the unit is intended to cover.
(4.) The main receiver shall not be constructed for operation, in whole or in part, from energy supplied by dry batteries.
(5.) If a vibrator power-unit is used, a stand-by vibrator, so arranged that it may be switched into circuit immediately, shall be provided.
First Schedule—
18.—(1.) In the case of a ship engaged on an international voyage, the main receiver shall be capable of—
(
a ) receiving signals of types A1, A2 and B within the frequency range 380 kilocycles per second to 535 kilocycles per second; and(
b ) receiving signals of types A1, A2 and A3 within the frequency range 1,605
kilocycles per second to 25 megacycles per second.
(2.) In the case of a ship not engaged on an international voyage, the main receiver shall be capable of receiving signals of types A1, A2, A3 and B within the frequency ranges 380 kilocycles per second to 535 kilocycles per second and 1,605 kilocycles per second to 3,000 kilocycles per second.
19. The main receiver shall be capable of headphone reception at all frequencies within the frequency ranges specified in sub-paragraph (1.) or (2.) of the last preceding paragraph, as the case requires.
20.—(1.) The main receiver shall have—
(
a ) separate radio-frequency and audio-frequency gain controls;(
b ) a means for reducing the receiver gain when the transmitting key of the transmitter is depressed, so that signals may be heard without inconvenience to the operator or damage to the receiver when the transmitter is keyed at signalling speeds of up to 30 words per minute;(
c ) a switch for disconnecting the device, if any, for reducing the effect of impulsive noise signals;(
d ) tuning controls which permit—
(i) rapid tuning throughout the frequency range covered by the receiver; and
(ii) fine tuning, by bandspread or otherwise, controlled by a knob of at least 2 inches diameter, the backlash of which shall not exceed 1 degree and which shall be so geared that, after backlash has been taken up, a rotation of 1 degree does not change the frequency of tune by more than 3 parts in 10,000 in the frequency range 380 kilocycles per second to 535 kilocycles per second or by more than 1 part in 10,000 in the frequency range 1,605 kilocycles per second to 25 megacycles per second;
(
e ) accurate means of resetting tune; and(
f ) a scale for use with the means of rapid tuning.
(2.) If a logging scale is provided as the means of resetting tune, it shall be such that 1 inch on the scale corresponds to a frequency change of not more than 1 per centum.
(3.) The scale for use with the means of rapid tuning shall, unless calibration charts are provided for use with the scale, be calibrated directly in frequency.
21. The main receiver shall comply with the requirements of paragraphs 22 to 34 (inclusive) of this Schedule when tested in the following manner or, if another manner is specified in relation to any of those paragraphs, when tested in that other manner:—
(
a ) An artificial aerial shall be used for the test and shall consist of a 75 ohm non-inductive resistor if the test is conducted at frequencies above 4 megacycles per second, and a 10 ohm resistor in series with a capacitor having a value of not less than 200 picofarads or more than 600 picofarads if the test is conducted at any other frequencies.(
b ) Type A2 signals used in the test shall be modulated to a depth of 30 per centum and shall have a note frequency of 400 cycles per second.(
c ) The frequency of the interfering or unwanted signals applied shall not be restricted to the frequency range of the receiver.(
d ) The standard audio-frequency output level of the receiver for headphone reception (in the succeeding paragraphs of this Schedule relating to the main receiver referred to as “the standard output”) shall be 1 milliwatt into a resistance substantially equal to the modulus of the impedance of the telephone receivers at 1,000 cycles per second.
First Schedule—
22.—(1.) The selectivity preceding the final detector of the main receiver shall be variable, either continuously or in steps, and shall, throughout the frequency ranges respectively specified in the first column of the following table, and at the bandwidth settings respectively specified in the second column of that table, satisfy the requirements specified in the third column of that table in relation to those frequency ranges and bandwidths:—
First Column. | Second Column | Third Column. |
Frequency Range. | Bandwidth Setting. | Selectivity Requirements. |
| Wide ............... |
|
| ||
| ||
| ||
| Intermediate |
|
| ||
| ||
| ||
| Narrow............ |
|
| ||
| ||
|
First Schedule—
(2.) If the receiver is a superheterodyne receiver, the image response ratio of the receiver shall, where the frequency of wanted signals is as specified in the first column of the following table, be not less than the ratio specified in the second column of that table opposite the reference to the frequency in the first column:—
First Column. | Second Column. |
Frequency of Wanted Signal. | Image Response Ratio. |
Not less than 380 kilocycles per second but not exceeding 535 kilocycles per second...................................................................................................... | 80 decibels |
Not less than 1,605 kilocycles per second but not exceeding 7 megacycles per second...................................................................................................... | 60 decibels |
Exceeding 7 megacycles per second but not exceeding 15 megacycles per second................................................................................................................. | 40 decibels |
Exceeding 15 megacycles per second............................................................ | 25 decibels |
(3.) If the receiver is a superheterodyne receiver, the intermediate frequency response ratio shall—
(
a ) be not less than 90 decibels at intermediate frequencies being not less than 140 kilocycles per second and not more than 1,600 kilocycles per second; and(
b ) be not less than 60 decibels at any other intermediate frequency.
23. The standard output of the main receiver shall be obtained, at all frequencies specified in the first column of the following table and at all bandwidth settings and both when the automatic gain control is on and off, with an input not exceeding that specified in the second column of that table opposite the reference to the frequency in the first column in the case of type A1 signals, or that specified in the third column of that table opposite the reference to the frequency in the first column in the case of type A2 signals:—
First Column. | Second Column. | Third Column. |
Frequency. | Maximum Input— Type A1 Signals. | Maximum Input— Type A2 Signals. |
Not less than 380 kilocycles per second but not exceeding 535 kilocycles per second | 20 decibels above 1 microvolt | 30 decibels above 1 microvolt |
Not less than 1,605 kilocycles per second but not exceeding 10 megacycles per second | 10 decibels above 1 microvolt | 20 decibels above 1 microvolt |
Exceeding 10 megacycles per second but not exceeding 25 megacycles per second | 20 decibels above 1 microvolt | 30 decibels above 1 microvolt |
24.—(1.) The signal/noise ratio of the main receiver shall, at any frequency specified in the first column of the following table and at the bandwidth setting specified in the second column of that table opposite the reference to the frequency in the first column, be not less than the ratio specified in the third column of that table opposite the reference to the frequency in the first column, when receiving any signal of type A1 or type A2 of the relevant maximum input specified in the table in the last preceding paragraph with the receiver gain adjusted to give the standard output:—
First Column. | Second Column. | Third Column. |
Frequency. | Bandwidth Setting. | Signal/noise Ratio. |
Not less than 380 kilocycles per second but not exceeding 535 kilocycles per second | Intermediate | 10 decibels |
Not less than 1,605 kilocycles per second but not exceeding 4 megacycles per second | Wide | 10 decibels |
Exceeding 4 megacycles per second but not exceeding 10 megacycles per second | Wide | 20 decibels |
Exceeding 10 megacycles per second but not exceeding 25 megacycles per second | Wide | 25 decibels |
(2.) For the purposes of this paragraph, spurious whistles shall be deemed to be noise.
First Schedule—
25.—(1.) The main receiver shall be provided with an automatic gain control, capable of operating efficiently on type A1, A2 and A3 waves of all frequencies not less than 380 kilocycles per second or more than 25 megacycles per second and of being switched out of circuit.
(2.) The automatic gain control shall be such that, when the receiver is adjusted to give the standard output with a type A2 input signal 10 decibels above the relevant maximum input specified in the table in paragraph 23 of this Schedule on any frequency not less than 1,605 kilocycles per second or more than 25 megacycles per second—
(
a ) an increase in input of 20 decibels results in an improvement in the signal/ noise ratio of at least 15 decibels; and(
b ) an increase in input of 60 decibels does not increase the output by more than 10 decibels.
(3.) The charge time constant of the automatic gain control system shall be between 0.05 second and 0.2 second and the discharge time constant shall be between 0.5 second and 2 seconds.
26. An increase in the input to the main receiver of 60 decibels when—
(
a ) the automatic gain control is switched off; and(
b ) the receiver is adjusted to give the standard output with a type A1 input signal 20 decibels above the relevant maximum input specified in the table in paragraph 23 of this Schedule,
shall not increase the output by more than 10 decibels.
27. The change in the output of the main receiver shall not exceed 3 decibels when—
(
a ) the bandwidth is set at “intermediate”;(
b ) the automatic gain control is in operation;(
c ) the receiver is adjusted to give the standard output with an input wanted signal of type A2 at a level of 60 decibels above 1 microvolt and of any frequency not less than 380 kilocycles per second or more than 25 megacycles per second; and(
d ) a type A1 input signal at a level of 100 decibels above 1 microvolt and at a frequency 10 kilocycles per second above or below the wanted frequency is then simultaneously applied.
28. The main receiver shall not produce an output of level higher than 30 decibels below the standard output when—
(
a ) the bandwidth is set at “intermediate”;(
b ) the automatic gain control is in operation;(
c ) the receiver is adjusted to give the standard output with an input wanted signal of type A2 at a level of 60 decibels above 1 microvolt and of any frequency not less than 380 kilocycles per second or more than 25 megacycles per second;(
d ) the modulation of the signal is switched off; and(
e ) a type A2 input signal at a level of 90 decibels above 1 microvolt and at a frequency 10 kilocycles per second above or below the wanted frequency is then simultaneously applied.
29. An output exceeding the standard output shall not be produced by the main receiver—
(
a ) when—
(i) the bandwidth is set at “intermediate”;
(ii) the automatic gain control is switched off;
(iii) the receiver is adjusted to give the standard output with an input wanted signal of type A2 at a level of 30 decibels above 1 microvolt and at any frequency not less than 380 kilocycles per second or more than 535 kilocycles per second;
First Schedule
(iv) the input wanted signal has been removed; and
(v) two unwanted signals, one of type A1 and the other of type A2 of which the frequency difference or frequency sum is the same as the frequency of the wanted signal, and each of which is of a level of 110 decibels above 1 microvolt and of such a frequency as to give no appreciable output when applied alone, are then simultaneously applied; or
(
b ) when—
(i) the bandwidth is set at “intermediate”;
(ii) the automatic gain control is switched off;
(iii) the receiver is adjusted to give the standard output with an input wanted signal of type A2 at a level of 30 decibels above 1 microvolt and at any frequency not less than 380 kilocycles per second or more than 535 kilocycles per second;
(iv) the input wanted signal has been removed; and (v) a type A2 signal, of a level of 116 decibels above 1 microvolt and of a frequency one-half of that of the wanted signal, is applied.
30.—(1.) The maximum change is level of the output of the main receiver shall be less than 8 decibels while the modulation frequency of an input signal of constant level and modulation depth is varied continuously from 300 cycles per second to 2,500 cycles per second when the bandwidth is set at “wide” for the reception of type A3 waves having a frequency above 1,605 kilocycles per second.
(2.) The main receiver shall comply with the requirement of the last preceding sub-paragraph when the level and modulation depth of the input signal are such that the output of the receiver does not exceed the standard output.
31. With the automatic gain control switched on, the total harmonic content of the audio-frequency output of the main receiver at any output not exceeding the standard output shall not exceed—
(
a ) 5 per centum with an input signal of a frequency of 500 kilocycles per second at any level between 30 decibels and 80 decibels above 1 microvolt and sinusoidally modulated to a depth of 30 per centum at 400 cycles per second; or(
b ) 15 per centum with such an input signal modulated to a depth of 80 per centum at 400 cycles per second.
32. The tuning drift and stability of the main receiver shall comply with the following requirements:—
(
a ) After the receiver has been switched on for 5 minutes, the changes of tune frequency during any period of 5 minutes shall not exceed the value shown in the second column of the following table within the frequency range shown in the first column of that table opposite that value in the second column:—
|
|
|
|
|
|
|
|
First Schedule
(
b ) A change of 5 per centum in any one of the supply voltages to the receiver shall not produce, within a frequency range shown in the first column of the following table, a maximum change of tune frequency exceeding the value shown in the second column of that table opposite the reference to the frequency range in the first column:—
|
|
|
|
|
|
|
|
(
c ) A change in ambient temperature of 5 degrees Centigrade within the range of 0 degrees Centigrade to 50 degrees Centigrade applied after the receiver has been switched on for 1 hour shall not produce, within a frequency range shown in the first column of the following table, a maximum change of tune frequency exceeding the value shown in the second column of that table opposite the reference to the frequency range in the first column:—
|
|
|
|
|
|
|
|
33. The heterodyne note stability of the main receiver shall be such that—
(
a ) the frequency of a heterodyne note which is initially 1 kilocycle per second shall not vary by more than 100 cycles per second when the input level referred to in sub-paragraph (b) of paragraph 26 of this Schedule is increased by not more than 60 decibels; and(
b ) it is possible at all input levels within the range specified in the last preceding sub-paragraph to obtain a beat note of 200 cycles per second when tuning either towards or away from zero beat.
34.—(1.) The main receiver shall not, when in use, produce a field exceeding 0.1 microvolt per metre when measured at a distance of 1 mile from the receiver.
(2.) The receiver shall be deemed to comply with the requirements of the last preceding sub-paragraph if, when—
(
a ) the receiver is placed centrally in a screened earthed enclosure at least 6 feet cube;(
b ) the earth terminal of the receiver is connected to the inside of the screen;(
c ) the aerial terminal is connected through an unscreened four-turn rectangular search coil 1 foot square situated within the enclosure and an unscreened lead to a resistive measuring instrument mounted outside the enclosure and having its other terminal earthed; and(
d ) the receiver is energized and unscreened headphones are connected to it,
the power measured by the measuring instrument does not exceed 4 x 10-10 watt whatever the resistance of the measuring instrument or the adjustment of the receiver and notwithstanding that the search coil is short-circuited or moved in any way, other than a way that causes it to approach within 6 inches of the receiver case.
First Schedule—
Emergency Transmitter.
35. The emergency transmitter shall be provided with such equipment as is necessary to enable it to operate from the emergency source of electrical energy referred to in sub-regulation (5.) of regulation 18 of these Regulations, and shall be capable of being connected without delay to the main and emergency aerials referred to in regulation 16 of these Regulations.
36. The emergency transmitter shall be capable of transmitting continuously type A2 waves on the frequency of 500 kilocycles per second.
37.—(1.) The emergency transmitter shall be capable of operation from the emergency source of energy referred to in sub-regulation (5.) of regulation 18 of these Regulations.
(
a ) a single-wire aerial consisting of not less than 30 feet of high conductivity stranded or braided wire so fitted as to be capable of being supported from the lifeboat mast without the use of top-masts at the maximum practicable height;(
b ) a collapsible stayed mast capable of being easily and quickly installed in a lifeboat and of supporting the aerial at a height of at least 16 feet above the sea when the base of the mast is resting on the bottom of a lifeboat in which it is intended to be used; and(
c ) an earth wire of high conductivity firmly connected to the equipment and loaded in such a manner that the wire will sink when placed overboard.
36.—(1.) The hand generator shall be of such design and construction that, when the handle of the generator is rotated at any speed within the normal range of handle speeds—
(
a ) sufficient electrical energy is generated to enable—(i) the transmitter to comply with the requirements of sub-paragraph (5.) of paragraph 40 of this Schedule; and
(ii) the receiver to comply with the requirements of paragraphs 46 and 47 of this Schedule;
(
b ) the transmitter complies with the requirements of sub-paragraph (5.) of paragraph 40 of this Schedule with a torque-speed at the handle of not more than 400 expressed in pounds-feet multiplied by revolutions per minute; and(
c ) an indicator lamp is lit, but that when the handle is rotated at a speed not within the normal range of handle speeds, the indicator lamp is not lit.
(2.) The hand generator shall be of such design and construction that—
(
a ) it can be operated by—
(i) one person; and
(ii) two persons simultaneously; and
(
b ) the handles cannot be rotated in the wrong direction.
(3.) In this paragraph and in succeeding paragraphs of this Schedule, the expression “normal range of handle speeds”, in relation to a generator, means the range of speeds extending from the minimum speed at which the generator will enable the transmitter forming part of the same equipment to comply with the requirements of sub-paragraph (5.) of paragraph 40 of this Schedule to a speed at least 40 per centum greater than that speed.
37. The transmitter shall be capable of—
(
a ) sending continuously, but not simultaneously, type A2 waves on the frequencies of 500 kilocycles per second and 8,364 kilocycles per second—
(i) by manual operation at all speeds up to 16 bauds; and
(ii) by automatic means at the speeds specified in sub-paragraph (2.) of paragraph 40 of this Schedule;
(
b ) maintaining over the normal range of handle speeds throughout every transmission a frequency tolerance—(i) of plus or minus 0.5 per centum on the frequency of 500 kilocycles per second; or
(ii) of plus or minus 0.02 per centum on the frequency of 8,364 kilocycles per second, without adjustment of any control, and notwithstanding any variations of the impedance of the aerial or artificial aerial to which it is connected; and
(
c ) operating on full power, when the aerial system or artificial aerial has been connected and the necessary controls have been adjusted, within 30 seconds after the generation of electrical energy has commenced.
38. The carrier wave shall be modulated to a depth of 100 per centum by a wave of rectangular character so that the carrier wave is switched on for not less than 30 per centum and not more than 50 per centum of a modulation cycle.
Fourth Schedule—
39. The note frequency shall be not less than 450 cycles per second or more than 1,350 cycles per second.
40.—(1.) The signal to be sent by the automatic means
referred to in sub-paragraph (
(
a ) when the transmission is on the frequency of 500 kilocycles per second, consist of the alarm signal of 12 dashes each of 4 seconds’ duration separated by spaces of 1 second, followed by the distress signal (that is to say, the Morse characters for the letters “S O S”) repeated three times, and a long dash; and(
b ) when the transmission is on the frequency of 8,364 kilocycles per second, include the distress signal repeated three times followed by a long dash of not less than 30 seconds’ duration.
(2.) Over the normal range of handle speeds—
(
a ) the speed of the automatic transmission of the distress signal shall be not less than 8 words and not more than 15 words per minute; and(
b ) the tolerance in the timing of the dashes of the alarm signal Shall not exceed plus or minus 0.2 second.
(3.) The automatic transmissions shall cease and open the keying circuit after one complete transmission unless the mechanism is re-set or re-wound.
(4.) Means shall be provided—
(
a ) to ensure that the transmission begins at the commencement of the signal; and(
b ) to indicate to the operator that the mechanism should be re-set or re-wound.
(5.) The mean power developed by the transmitter in the load during a marking period shall—
(
a ) when the transmission is on the frequency of 500 kilocycles per second, be not less than ((3.8 log 10C)—5.5) watts, C being the capacitance of the artificial aerial in picofarads, when measured with an artificial aerial consisting of a 15 ohm resistor in series with a capacitor having any value between the minimum capacitance of the aerial referred to in sub-paragraph (a) of paragraph 35 of this Schedule and 150 picofarads, and not less than 3.5 watts when measured with an artificial aerial consisting of a 30 ohm resistor in series with a capacitor having any value between 350 picofarads and 450 picofarads; and(
b ) when the transmission is on the frequency of 8,364 kilocycles per second, be not less than 3 watts when measured with an artificial aerial consisting of a 40 ohm resistor in series with any inductive or capacitive reactance in the range plus 60 ohms to minus 60 ohms.
41. The aerial circuit shall include—
(
a ) a tuning control suitable for use with all types of aerial provided; and(
b ) a tuning indicator, the failure of which does not disconnect the aerial circuit.
42.—(1.) An artificial aerial suitable for testing the transmitter on full power shall be provided within the equipment.
(2.) Means shall be provided for testing the facilities for automatic transmission without the generation of radio-frequency energy.
43. The transmitter shall be so designed and constructed that, when it is transmitting and adjusted for maximum power, the aerial may be disconnected or the output short-circuited without, in either case, damage being caused to any part of the equipment.
44. The receiver shall be a fixed tune receiver which shall be capable of receiving type A2 waves over the frequency band 490 kilocycles per second to 510 kilocycles per second when used with headphones.
45. Headphones shall be provided and shall be shrouded to exclude external noises and permanently attached to the receiver.
46. The receiver shall comply with the requirements of the next succeeding paragraph when tested in the following manner:—
(
a ) Artificial aerials shall be used and shall consist of either—(i) a 15 ohm resistor in series with a capacitor having any value between the minimum capacitance of the aerial referred to in sub-paragraph (
a ) of paragraph 35 of this Schedule and 150 picofarads; or
Fourth Schedule—
(ii) a 30 ohm resistor in series with a capacitor of any value within the range 350 picofarads to 450 picofarads.
(
b ) The signals used shall be type A2 signals modulated to a depth of 30 per centum at 400 cycles per second.
47. Over the normal range of handle speeds—
(
a ) the standard audio-frequency output of the receiver into a resistance substantially equal to the modulus of the impedance of the telephone receivers at 1,000 cycles per second shall be 1 milliwatt;(
b ) the selectivity preceding the final detector of the receiver shall, at a frequency referred to in the first column of the following table, comply with the requirement specified in the second column of that table opposite the reference to the frequency in the first column:—
First Column. | Second Column. |
Frequency. | Requirement. |
| Response to be uniform to within 6 decibels |
|
|
(
c ) the audio-frequency response of the receiver shall be uniform to within decibels over the range of modulation frequencies 400 cycles per second to 1,400 cycles per second and shall substantially fall for frequencies outside this range;(
d ) the standard output specified in sub-paragraph (a ) of this paragraph shall be obtained with a test signal input not exceeding 40 decibels above 1 microvolt on the frequency of 500 kilocycles per second; and(
e ) with the test signal specified in the last preceding sub-paragraph, the signal/ noise ratio shall be at least 15 decibels.
Fifth Schedule. Regulation 4
Auto-alarm.
1. The auto-alarm shall—
(
a ) include a receiver, a selector, a test signal generator and an audible alarm system;(
b ) be capable of giving audible warning of the receipt of an alarm signal consisting of a series of 12 consecutive dashes, each of a duration of 4 seconds and separated by intervals of 1 second in each case subject to the tolerances specified in sub-paragraph (a) of paragraph 16 of this Schedule;(
c ) be capable of being connected without delay with the main aerial referred to in regulation 16 of these Regulations or to the emergency aerial;(
d ) comply with the requirements of this Schedule notwithstanding variations of the supply voltage of—(i) plus 5 per centum or minus 10 per centum if the equipment is operated from the emergency source of energy required by sub-regulation (5.) of regulation 18 of these Regulations, or from batteries; or
(ii) plus or minus 10 per centum if the equipment is operated from the main source of electrical energy required by sub-regulation (1.) of that regulation.
2. If a vibrator power unit is employed, a standby vibrator, so arranged that it may be switched into circuit immediately, shall be provided.
3. The receiver, selector and test signal generator shall be installed in the room or place from which the radiotelegraphy installation is operated.
Fifth Schedule—
4. The auto-alarm shall be provided with a switch or system of switches by which it may be connected to the ship’s main aerial or to the emergency aerial.
5. The auto-alarm shall include a manual re-setting device to enable the selector to be re-set after the audible alarm system has been actuated.
6. The receiver forming part of the auto-alarm shall be capable of receiving type A2 waves and type B waves in each case on all note frequencies not less than 400 cycles per second or more than 1,400 cycles per second and on all carrier waves of a frequency not less than 492 kilocycles per second or more than 508 kilocycles per second.
7. All tuning controls and gain controls which affect the operation of the receiver as part of the auto-alarm shall be pre-set and shall not be capable of operation from the outside of the auto-alarm.
8. The receiver shall comply with the requirements of paragraphs 9 to 12, inclusive, of this Schedule when tested in the following manner or, where another method of testing is specified in any of those paragraphs, in the manner so specified:—
(
a ) An artificial aerial consisting of a 10 ohm resistor in series with a capacitor having any value between 300 picofarads and 750 picofarads shall be used.(
b ) Type A2 signals used in the test shall be modulated to a depth of 70 per centum and shall have a note frequency of 400 cycles per second.
9. The selectivity of the receiver shall be such that—
(
a ) the radio-frequency response is uniform to within 3 decibels over the frequency range 492 kilocycles per second to 508 kilocycles per second;(
b ) the total variation of audio-frequency response is not more than 3 decibels in the case of note frequencies in the range 400 cycles per second to 1,400 cycles per second;(
c ) the audio-frequency response falls rapidly in the case of note frequencies below 400 cycles per second and above 1,400 cycles per second; and(
d ) the auto-alarm gives response to an alarm signal of the frequency of 500 kilocycles per second and an input level of 40 decibels above 1 microvolt in the presence of another signal having the characteristics specified in the following table:—
Type of Wave. | Modulation Frequency. | Depth of Modulation. | Carrier Frequency. | Input Level In Decibels above one Microvolt. |
Continuously modulated carrier wave | Any audio-frequency in the range 50 cycles per second to 1,400 cycles per second | 70 per centum | Below 470 kilocycles per second or above 530 kilocycles per second Below 450 kilocycles per second or above 550 kilocycles per second | 80 |
120 |
10.—(1.) For the purposes of this paragraph, the sensitivity of the receiver is the minimum input level of the test alarm signal which, when injected at the frequency of 500 kilocycles per second, will operate the selector.
(2.) The sensitivity of the receiver shall be such that the selector will operate by the injection of an alarm signal from the test signal generator forming part of the auto-alarm.
(3.) The receiver shall be provided with an automatic gain control which—
(
a ) during periods when the selector is continuously in operation, steadily reduces the sensitivity of the receiver at a rate within the range 7.5 decibels to 15 decibels per minute in the case of a range of sensitivity of 40 decibels to 80 decibels above 1 microvolt, notwithstanding that the input level of an injected signal is at any level above the minimum necessary to operate the selector; and
Fifth Schedule—
(
b ) during periods when the selector is not continuously in operation, steadily increases the sensitivity of the receiver to a maximum level of not less than 35 decibels or more than 40 decibels above 1 microvolt at a rate of increase within the range 30 decibels to 60 decibels per minute in the case of a range of sensitivity of 40 decibels to 80 decibels above 1 microvolt, notwithstanding that the input level of an injected signal is at any level below the level corresponding to the threshold of selector release.
11. The automatic gain control, when Morse interference is simulated by continuous keying of a test signal of the frequency of 500 kilocycles per second and an input level of 100 decibels above 1 microvolt with a mark-to-space ratio of 19 to 1 and variation of frequency of interruption is obtained by varying the speed of transmission, shall be such that—
(
a ) when the test signal produces three interruptions during each second, the sensitivity of the receiver is not reduced below that necessary for the reception of a signal of an input level of 40 decibels above 1 microvolt; and(
b ) when the speed of the test signal is arranged so that there are three interruptions during each period of 2 seconds, the sensitivity of the receiver is so reduced after operating for a period of 15 minutes that a signal of at least 70 decibels above 1 microvolt is required to operate the selector.
12. If, in addition to the automatic gain control, a pre-set manual control of receiver gain is provided, the range of sensitivity variations provided by that control shall not exceed 10 decibels.
13. The receiver shall be such that the auto-alarm responds to a test alarm signal transmitted on any frequency in the range 492 kilocycles per second to 508 kilocycles per second and at an input level of 50 decibels above 1 microvolt in the presence of an interfering signal having the characteristics specified in the following table:—
Type of Signal. | Depth of Modulation. | Modulation Frequency. | Input Level. | Speed of Transmission. |
Type A2 | 70 per centum |
| 120 decibels above 1 microvolt | Not less than 15 or more than 40 words per minute |
14. The receiver shall be such that it does not operate the selector upon the simultaneous injection of any two continuous carrier waves, of which the frequency difference or sum is within the range 492 kilocycles per second to 508 kilocycles per second, having the following characteristics:—
Frequency. | Input Level. | Modulation. |
| 120 decibels above 1 microvolt |
|
15.—(1.) The receiver shall be such that it does not in normal service produce a field exceeding 0.1 microvolt per metre when measured at a distance of 1 mile from the receiver, unless the test signal generator is in operation.
(2.) The receiver shall be deemed to comply with the requirements of the last preceding sub-paragraph if, when—
(
a ) the receiver is placed centrally in a screened earthed enclosure at least 6 feet cube;
Fifth Schedule—
(
b ) the earth terminal of the receiver is connected to the inside of the screen;(
c ) the aerial terminal of the receiver is connected through an unscreened search coil 1 foot square situated within the enclosure and an unscreened lead to a resistive measuring instrument mounted outside the enclosure and having its other terminal earthed; and(
d ) the receiver is energized, the power measured by the measuring instrument does not exceed 4 x 10-10 watt whatever the resistance of the measuring instrument or the adjustment of the receiver, and notwithstanding that the search coil is short-circuited or moved in any way other than a way that causes it to approach within 6 inches of the receiver case.
16. The selector, in conjunction with the receiver, shall be capable—
(
a ) of accepting dashes of a duration of not less than 3.5 seconds or more than 6.0 seconds and spaces between dashes, being spaces of a duration of not less than 0.01 second and not more than 1.5 seconds; and(
b ) of rejecting dashes of a duration of less than 3.4 seconds or more than 6.2 seconds and spaces between dashes, being spaces of a duration of more than 1.6 seconds.
17. The selector, after accepting three or four consecutive dashes of the alarm signal, shall actuate the audible alarm system.
18. Any timing controls provided as part of the selector shall be pre-set and shall not be capable of being operated from the outside of the equipment.
19.—(1.) The test signal generator shall be capable of generating, for purposes of test, a signal having the characteristics specified in the following table:—
Type of Signal. | Frequency. | Depth of Modulation. | Modulation Frequency | Input Level. |
Type A2 | 500 kilocycles per second | Not less than 70 per centum or more than 100 per centum |
|
|
(2.) The test signal generator shall be capable of injecting into the
receiver the alarm signal specified in sub-paragraph (
(
a ) a manual key of a non-locking type; and(
b ) the automatic keying device specified in the First Schedule.
(3.) The method of injection shall be such that the test alarm signal does not operate the audible alarm system when the aerial is disconnected.
20. The test signal generator shall be so designed and constructed that the input level of the signal specified in sub-paragraph (1.) of the last preceding paragraph can be increased by approximately 20 decibels by means of a non-locking switch.
21.—(1.) The audible alarm system shall consist of three alarm bells installed respectively in the room or place from which the radiotelegraphy installation is operated, on the bridge and in the sleeping room of a radio officer.
(2.) The bells shall be operated from the source of electrical energy required by sub-regulation (5.) of regulation 18 of these Regulations by means of a power circuit taken from an unfused circuit, and so fused that the efficiency of the audible alarm system will not be affected by the rupture of a fuse other than a fuse forming part of that system.
Fifth Schedule—
(3.) The power circuit shall be controlled by a locking switch situated on or near to the receiver forming part of the auto-alarm and clearly and permanently marked to indicate its purpose.
22. Subject to the provisions of the next succeeding paragraph, the alarm bells shall, whenever the auto-alarm is in operation as such, give an alarm—
(
a ) when actuated by the selector; and(
b ) within 15 seconds after any failure for 9 seconds (subject to a tolerance of plus or minus 6 seconds) of—(i) the direct-current voltage feeding the anode of a valve of the receiver forming part of the auto-alarm, if the receiver is not provided with a vibrator;
(ii) a vibrator forming part of the receiver;
(iii) a circuit of a filament of a directly-heated valve forming part of the receiver, if it is operated from the main source of electrical energy referred to in sub-regulation (1.) of regulation 18 of these Regulations; and
(iv) any continuously rotating mechanism forming part of a selector operated from that main source of electrical energy; and
(
c ) within 15 seconds after any failure of—(i) a circuit of a filament of a directly-heated valve forming part of the receiver, if it is operated from batteries; or
(ii) any continuously rotating mechanism forming part of a selector operated from batteries.
23.—(1.) A device shall be provided which enables the bells situated on the bridge to be disconnected from the power circuit.
(2.) The device may include means for so disconnecting the bell situated in the radio officer’s sleeping room and shall be non-locking, but shall not be capable of disconnecting the bell in the room or place from which the radiotelegraphy installation is operated.
(3.) The device shall be clearly and permanently marked to indicate its purpose.
24. The auto-alarm shall be such that, when it is in operation for a period of 28 days in connexion with an aerial having an effective height of not less than 10 metres at a location nominated by the Minister, the auto-alarm is not actuated during that period by signals other than—
(
a ) signals locally generated to test the auto-alarm; and(
b ) signals within the tolerances specified in sub-paragraph (a ) of paragraph 16 of this Schedule.
25. If the auto-alarm is intended to be used as an emergency radiotelegraphy receiver, it shall, in addition to complying with the requirements specified in the preceding provisions of this Schedule, comply with the following requirements:—
(
a ) The receiver forming part of the auto-alarm shall be capable of—(i) headphone reception and loudspeaker reception of the waves specified in paragraph 6 of this Schedule; and
(ii) operation from the main source of electrical energy referred to in sub-regulation (1.) of regulation 18 of these Regulations and the emergency source of electrical energy referred to in sub-regulation (5.) of that regulation.
(
b ) The receiver shall be provided with—(i) a built-in switch for changing the operation of the receiver from the main source of electrical energy to the emergency source of electrical energy; and
(ii) a manual gain control so arranged that the performance of the auto-alarm as such is not impaired at any setting of the control.
(
c ) The standard audio-frequency output level of the receiver shall be—(i) for headphone reception, 10 decibels below 1 milliwatt into a resistance substantially equal to the modulus of the impedance of the telephone receivers at 1,000 cycles per second; and
(ii) for loudspeaker reception, 17 decibels above 1 milliwatt into a resistance which loads the output valve with the load appropriate to the valve.
Fifth Schedule—
26. The sensitivity of the
receiver shall be such that, when measured with a signal interrupted in the
manner specified in sub-paragraph (
27. When the manual gain control is adjusted to give the standard audio-frequency output of the receiver with the signal input specified in the last preceding paragraph, the signal/noise ratio shall be at least 20 decibels.
28. The receiver shall comply with paragraph 15 of this Schedule when used with unscreened headphones.
Sixth Schedule. Regulation 13
RADIO LOG-BOOK.
PART I.
Name of ship. | Official number and international call sign. | Port of registry. | Gross tonnage |
Name of Company operating the Radio Service..................................................................................
Port at which, and date when, voyage commenced. | Nature of the voyage or employment. | Port at which, and date when, voyage terminated. |
Section A.—Particulars of Radio Staff.
Name. | Home address. | Certificate number and class. |
Section B.—Particulars of Batteries on Board.
Battery number. | Number of cells. | Type. | Date supplied. | Voltage and ampere-hour capacity. | Purpose for which used. |
Sixth Schedule—
Section C.—Daily Examination of Batteries.
Date. | Battery number. | Voltage off load. | Voltage on load. | Remarks. |
Section D.—Monthly Report of Batteries.
Date | Battery number and cell number. | Specific gravity as measured. | Remarks. | Date. | Battery number and cell number | Specific gravity as measured. | Remarks. | ||
Before charge. | After charge. | Before charge. | After charge. | ||||||
PART II.
Name of ship. | Official number and international call sign. | Port of registry. | Gross tonnage. |
Serial Number................................................from....................................to........................................
Name of Company operating the Radio Service……………………………..................................
Diary of the Radiotelegraph Service.
Date and time (G.M.T.). | Station from. | Station to. | Full details of calls, signals and distress working. | Frequency. |
Seventh Schedule, Regulation 24.
table of watch hours.
First Column. | Second Column. | Third Column. | ||||
Description of Waters. | Times of Watch for Ships required to maintain | Times of Watch for Ships required to maintain | ||||
Watch of 16 Hours each Day. (Greenwich Mean Time). | Watch of 8 Hours each Day. (Greenwich Mean Time). | |||||
| 0 h. | to | 6 h. | 8 h. | to | 10 h. |
8 h. | to | 14 h. | 12 h. | to | 14 h. | |
16 h. | to | 18 h. | 16 h. | to | 18 h. | |
20 h. | to | 22 h. | 20 h. | to | 22 h. | |
| 0 h. | to | 2 h. | 4 h. | to | 6 h. |
4 h. | to | 10 h. | 8 h. | to | 10 h. | |
12 h. | to | 14 h. | 12 h. | to | 14 h. | |
16 h. | to | 18 h. | 16 h. | to | 18 h. | |
20 h. | to | 24 h. | ||||
| 0 h. | to | 6 h. | 0 h. | to | 2 h. |
8 h. | to | 10 h. | 4 h. | to | 6 h. | |
12 h. | to | 14 h. | 8 h. | to | 10 h. | |
16 h. | to | 22 h. | 12 h. | to | 14 h. | |
| 0 h. | to | 2 h. | 0 h. | to | 2 h. |
4 h. | to | 6 h. | 4 h. | to | 6 h. | |
8 h. | to | 10 h. | 8 h. | to | 10 h. | |
12 h. | to | 18 h. | 20 h. | to | 22 h. | |
20 h. | to | 24 h. | ||||
| 0 h. | to | 2 h. | 0 h. | to | 2 h. |
4 h. | to | 6 h. | 4 h. | to | 6 h. | |
8 h. | to | 14 h. | 16 h. | to | 18 h. | |
16 h. | to | 22 h. | 20 h. | to | 22 h. | |
| 0 h. | to | 2 h. | 0 h. | to | 2 h. |
4 h. | to | 10 h. | 12 h. | to | 14 h. | |
12 h. | to | 18 h. | 16 h. | to | 18 h. | |
20 h. | to | 22 h. | 20 h. | to | 22 h. | |
By Authority: A. J. Arthur, Commonwealth Government Printer, Canberra.
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