1990 No. 262*1* STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983
*1* Notified in the Commonwealth of Australia Gazette on 21 August 1990. 1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 1
PART 1 - PRELIMINARY
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 1
Citation
STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 FOR
RADIOCOMMUNICATIONS EQUIPMENT USED IN THE 27 MHz INSHORE
BOATING SERVICE
1. This standard may be cited as ``Ministerial Standard 244".
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 2
Interpretation
2. In this standard, unless the contrary intention appears:
``A3E" means an emission whose basic characteristic is that of a double
sideband, amplitude modulated single channel carrier containing primarily
analogue telephony information;
``ALC" means automatic level control;
``ALC threshold" means the operating point on a transmitter output power
characteristic at which an increase in the modulating signal level does not
cause a proportional increase in output power;
``battery-end-of-life voltage" means the manufacturer's declared voltage
below which the battery is incapable of operating the equipment in accordance
with the manufacturer's stated specifications;
``channel" means a 10 kHz band centred on the nominal carrier frequency;
``dB" means decibel;
``dBm" means decibel relative to one milliwatt;
``device" means a device to which this standard applies;
``emission" means radiation produced, or the production of radiation, by a
radiocommunications transmitter;
``handheld station" means a station designed to be carried on the person and
deriving primary power from a replaceable or rechargeable internal battery;
``Hz" means hertz;
``J3E" means an emission whose basic characteristic is that of a single
sideband, amplitude modulated suppressed carrier on a single channel
containing primarily analogue telephony information;
``kHz" means kilohertz;
``limited coast station" means a station established on land for the purpose
of communicating with ship stations at sea and which is not used for the
transmission and reception of messages on behalf of the public;
``MHz" means megahertz;
``mW" means milliwatt;
``out-of-band emission" means an emission on a frequency or frequencies
outside the permitted bandwidth which results from the modulation process but
is not a spurious emission;
``permitted bandwidth" means:
(a) the 8 kHz band centred on the operating carrier frequency where the
transmitter operates in the A3E emission mode; or
(b) the 4 kHz band centred on a frequency 2 kHz above the suppressed
operating carrier frequency where the transmitter operates in the J3E upper
sideband emission mode;
``pX" means peak envelope power;
``radiation" means the outward flow of energy from any source by means of
radio transmission;
``radiotelephony" means a form of radiocommunications set up for the
transmission of speech or, in some cases, other sounds;
``rated peak envelope power" means the peak envelope power at the
transmitter output with a modulating signal comprising two non-harmonically
related sinusoids, in the frequency range 300 to 3000 Hz inclusive, at a level
of modulation so that:
(a) the transmitter is operating 10 dB above the ALC threshold; and
(b) the radio frequency sidebands corresponding to the modulating sinusoids
are of equal level;
``reference audio frequency output power" means an audio power at the
receiver output of:
(a) 100 mW in the case of a limited coast station and ship station; or
(b) 50 mW in the case of a handheld station;
``reference sensitivity" means the minimum input signal level that can be
applied to a receiver to produce standard SINAD ratio at reference audio
frequency output power;
``reference sideband power" means the level of the two equal-level radio
frequency sidebands produced when a transmitter is operating at rated peak
envelope power;
``ship station" means a station established aboard a ship and which is used
primarily for communicating with land stations, and other stations established
aboard vessels;
``SINAD ratio" means the ratio, at the receiver output, of the power of the
signal plus noise plus distortion to the power of the noise plus distortion;
``spurious emission" means an emission on a frequency or frequencies which
are outside the permitted bandwidth and the level of which may be reduced
without affecting the corresponding transmission of information;
``standard device" means a device which complies with this standard;
``standard modulating signal" means a modulating signal comprising two
non-harmonically related sinusoids, in the frequency range 300 to 3000 Hz
inclusive, at a level of modulation 20 dB below that required to establish
rated peak envelope power;
``standard SINAD ratio" means a SINAD ratio of 12 dB;
``station" means an installation or thing that is, or includes, a
radiocommunications transmitter or receiver;
``THD" means total harmonic distortion;
``the 27 MHz Inshore Boating Service" means a maritime oriented
radiocommunications service operating in inshore waters, including inland
waterways, comprising those channels listed in column one of the table set out
in item 2 of the Schedule;
``transmitter" means a radiocommunications transmitter;
``unwanted emission" means a spurious emission or an out-of-band emission;
``W" means Watts; and
``degrees C" means degrees Celsius.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 3
Devices to which this standard applies
3. (1) Subject to subclause 3 (2), this standard applies to limited coast
stations, ship stations and handheld stations designed or intended for the
purpose of, or purposes which include, operation in the 27 MHz Inshore Boating
Service.
(2) Where a limited coast station, ship station or handheld station is
designed or intended for:
(a) the purpose of operation in the 27 MHz Inshore Boating Service; and
(b) another purpose or purposes;
this standard applies only to that part or those parts of the station
necessary for the purpose in paragraph 3 (2) (a).
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 2
PART 2 - GENERAL
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 4
Equipment markings
4. (1) Subject to subclause 4 (3), there shall be displayed on a device:
(a) a compliance statement in the form set out in item 1 of the Schedule:
(i) indicating that the device complies with this standard; and
(ii) citing the type approval number shown on the compliance statement
certificate issued in respect of the device under section 12 of the
Radiocommunications Act 1983; and
(b) its type or model designation which shall be distinctively different
from that of imported equipment requiring modification before it complies with
this standard.
(2) A statement or marking displayed on a device in accordance with
subclause 4 (1) shall be clearly visible on the exterior surface of the
device, indelible, tamper proof and affixed in such a manner as not to be
removeable except by destruction or defacing.
(3) Paragraph 4 (1) (a) does not apply to a device unless the importer,
manufacturer or supplier of the device, as the case may be, has been issued
with a compliance statement certificate in respect of the device.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 5
Adjustment mechanisms
5. (1) For the purpose of this clause an ``adjustment mechanism" is a
mechanism which enables the operation of a standard device to be altered so
that the device contravenes the requirements of this standard.
(2) Any adjustment mechanism shall be contained within the housing of a
device and shall be accessible only with the use of tools such as screwdrivers
and spanners.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 6
Protective design
6. A device designed for operation from battery supplies shall be protected
from damage due to reversal of the power supply polarity.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 7
Channel operation
7. (1) A device shall clearly indicate the channel number, as designated in
column 1 of the table set out in item 2 of the Schedule, to which it is tuned
to operate.
(2) A device shall operate on only one channel at any one time.
(3) A device shall be inhibited from transmitting during channel switching
operations.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 8
Conditions of operation
8. The requirements of Parts 3 and 4 shall be met by a device when it
operates at:
(a) ambient temperatures of between 0 degrees C and 55 degrees C inclusive;
and
(b) subject to paragraph 8 (c), voltages within +-10% of the primary supply
voltage stated by the manufacturer; and
(c) in the case of handheld stations, voltages between the primary supply
voltage stated by the manufacturer, and the battery-end-of-life voltage.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 3
PART 3 - TRANSMITTER
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 9
Application
9. In this part ``transmitter" means a radiocommunications transmitter of a
limited coast station, ship station and handheld station.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 10
Emission modes
10. (1) Subject to subclause 10 (2) and 10 (3), a transmitter shall be
capable of operation only in:
(a) the A3E emission mode;
(b) the J3E upper sideband emission mode; or
(c) the A3E emission mode and the J3E upper sideband emission mode.
(2) A transmitter shall be capable of operation only in the A3E emission
mode on channel 88 (the distress, safety and calling channel).
(3) Information other than speech telphony shall not:
(a) be transmitted on channel 88 and channel 86 (the supplementary
distress, safety and calling channel); and
(b) exceed a duration of 3 seconds in any 60 second interval on any other
channel.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 11
Nominal carrier frequency
11. A transmitter shall, subject to clause 12, be capable of operation only
on a channel designated in column 1 of the table set out in item 2 of the
Schedule, being a channel whose nominal carrier frequency is specified in
column 2, opposite that channel.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 12
Frequency error
12. The carrier frequency error of a transmitter shall not exceed +-21.4
kHz.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 13
Mandatory distress channels
13. (1) A transmitter shall, subject to clause 11, be capable of operation
on channels 88 and 86.
(2) When channel 88 is selected the transmitter shall clearly indicate that
it is on the primary distress, safety and calling channel.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 14
Carrier power
14. The output carrier power of a transmitter operating in the A3E emission
mode shall not exceed 4 W.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 15
Rated peak envelope power
15. The rated peak envelope power of a transmitter operating in the J3E
emission mode shall not exceed 12 W.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 16
Modulation limiting
16. Where a transmitter operates in the A3E emission mode the depth of
amplitude modulation under any modulation conditions shall not exceed 100%.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 17
Modulation sensitivity
17. Where a transmitter operates in the A3E emission mode and with any
external microphone gain control adjusted for minimum microphone sensitivity,
a 1000 Hz sinusoidal signal applied to the transmitter microphone at a sound
pressure of 2.5 pascals shall produce a modulation depth of not less than 80%.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 18
Automatic level control
18. Where a transmitter operates in the J3E emission mode, a step increase
of 20 dB in the level of standard modulating signal shall not cause:
(a) any transient pX to exceed 12 W by more than 1 dB; and
(b) where the transient pX exceeds 12 W, the time taken for the output
power to reduce within 0.5 dB of the steady-state pX to exceed 10
milliseconds.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 19
Out-of-band emission suppression
19. Where a transmitter operates in the A3E emission mode the power of each
out-of-band emission shall not exceed:
(a) 11 dBm, where the frequency of the emission differs from the operating
carrier frequency by greater than 4 kHz but not greater than 8 kHz;
(b) 1 dBm, where the frequency of the emission differs from the operating
carrier frequency by greater than 8 kHz but not greater than 20 kHz; or
(c) -24 dBm, where the frequency of the emission differs from the operating
carrier frequency by greater than 20 kHz.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 20
Unwanted emission suppression
20. Where a transmitter operates in the J3E emission mode the power of each
out-of-band emission shall be attenuated relative to the reference sideband
power of the transmitter by at least:
(a) 24 dB, where the frequency of the emission differs from the centre
frequency of the permitted bandwidth by greater than 2 kHz but not greater
than 6 kHz;
(b) 34 dB, where the frequency of the emission differs from the centre
frequency of the permitted bandwidth by greater than 6 kHz but not greater
than 10 kHz; or
(c) 59 dB, where the frequency of the emission differs from the centre
frequency of the permitted bandwidth by greater than 10 kHz.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 21
Spurious emissions
21. The power of any spurious emission from a transmitter operating in the
A3E emission mode shall not exceed -26 dBm.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 4
PART 4 - RECEIVER
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 22
Application
22. In this part ``receiver" means a radiotelephony receiver of a limited
coast station, ship station and handheld station.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 23
Receive modes
23. A receiver shall be capable of demodulation of:
(a) A3E emissions on channel 88; and
(b) either, or both, A3E and J3E upper sideband emissions on any other
channel.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 24
Mandatory distress channels
24. A receiver shall be fitted for reception on channels 88 and 86.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 25
Reference sensitivity
25. The reference sensitivity of a receiver shall be equal or lower in level
than -105 dBm.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 26
Maximum squelch level
26. The maximum squelch opening and closing level of a receiver shall not
exceed -95 dBm.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 27
Adjacent channel selectivity
27. (1) Where a receiver operates in the A3E reception mode, the adjacent
channel selectivity of the receiver at a frequency offset 10 kHz above or
below the nominal carrier frequency, shall be equal or greater than 55 dB.
(2) Where a receiver operates in the J3E reception mode, the adjacent
channel selectivity of the receiver at a frequency offset 11 kHz above or 9
kHz below the nominal carrier frequency shall be equal or greater than 65 dB.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 28
Spurious response immunity
28. The spurious response immunity of a receiver at frequencies offset from
the nominal carrier frequency by greater than 15 kHz, and within the frequency
band 100 kHz to 1000 MHz inclusive, shall be equal or greater than:
(a) 55 dB, where the receiver operates in the A3E reception mode; or
(b) 65 dB, where the receiver operates in the J3E reception mode.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 29
Rated audio frequency output power
29. A receiver which is not a handheld station shall have a rated audio
output power of not less than 1 W with a maximum THD of 10%.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 30
Conducted spurious signals
30. The power of any spurious signal from a receiver shall not exceed
-57dBm.
1990 No. 262 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - SCHEDULE
SCH
SCHEDULE
Item 1: THE FORM OF A COMPLIANCE STATEMENT Clause 4)
``COMPLIES WITH MS244
TYPE APPROVAL NO. . ."
Item 2: NOMINAL CARRIER FREQUENCY (Clause 11)
Column 1 Column 2
Channel Carrier Frequency (MHz)
68 27.680
72 27.720
82 27.820
86 27.860
88 27.880
90 27.900
91 27.910
94 27.940
96 27.960
98 27.980
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