1987 No. 237*1* STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983
*1* Notified in the Commonwealth of Australia Gazette on 16 October 1987. 1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 1
STANDARD FOR CORDLESS TELEPHONES
PART 1-PRELIMINARY
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 1
Citation
1. This standard may be cited as "Ministerial Standard 302".
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 2
Commencement
2. This standard shall come into operation on 1 December 1987.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 3
Interpretation
3. In this standard, unless the contrary intention appears-
"AC" means alternating current;
"base station" means a base radiocommunications transmitter and receiver
station of a cordless telephone;
"cordless telephone" means an equipment designed or intended primarily to
replace, and by means of radio transmission to extend the range of, a
telephone connected by wire to a switched telephone network and consists of:
(a) a base radiocommunications transmitter and receiver station, which
can be directly connected to a switched telephone network; and
(b) one or more portable radiocommunications transmitter and receiver
stations, by means of which voice communication may be achieved through the
base station with the users of other telephones in a switched telephone
network by the transmission of radio signals between the portable station and
the base station;
"dB" means decibel;
"dBuV/m" means decibel relative to one microvolt per metre;
"DC" means direct current;
"device" means a device to which this standard applies;
"emission" means radiation produced, or the production of radiation, by a
radiocommunications transmitter;
"kHz" means kilohertz;
"mains coupled interference" means conducted radio frequency energy on
frequencies outside the permitted bandwidth;
"MHz" means Megahertz;
"MS" means Ministerial Standard;
"mW" means milliwatt;
"out-of-band emission" means an emission which results from the modulation
process, on a frequency or frequencies outside the permitted bandwidth, but
excluding spurious emissions;
"permitted bandwidth" means the 16 kHz band centred on the carrier frequency
on which the radiocommunications transmitter is operating;
"portable station" means a portable radiocommunications transmitter and
receiver station of a cordless telephone;
"radiation" means the outward flow of energy from any source by means of
radio transmission;
"radio transmission" has the same meaning as in section 3 of the
Radiocommunications Act 1983;
"radiocommunications transmitter" has the same meaning as in section 3 of
the Radiocommunications Act 1983;
"receiver" has the same meaning as in section 3 of the Radiocommunications
Act 1983;
"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 AC mains network" means a network which, when inserted in the AC
mains lead of a cordless telephone has a nominal impedance of 50 ohms at the
operating frequency of base station transmitters operating on a nominal
carrier frequency not exceeding 2 MHz;
"standard device" means a device which complies with this standard;
"unwanted emission" means a spurious emission or an out-of-band emission;
and
"degree C" means degrees Celsius.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 4
Devices to which this standard applies
4. This standard shall apply to cordless telephones as defined in clause 3.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 2
PART 2-GENERAL
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 5
Equipment markings
5. (1) Subject to sub-clause 5 (4), there shall be displayed on a base
station and a portable station:
(a) a compliance statement in the form set out in item 1 of the schedule-
(i) indicating that the station 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;
(b) its type or model designation;
(c) the channel designator or designators set out in column 1 of item 2 of
the schedule which correspond to the channel or channels set out in columns 2
or 3 respectively on which the station operates.
(2) The type or model designation required by paragraph 5 (1) (b) shall be a
designation containing the suffix "AUS" and shall be used exclusively in
relation to that type or model of device as imported, manufactured or modified
for use in Australia in compliance with this standard.
(3) A statement or marking displayed on a station in accordance with
sub-clause 5 (1) shall be clearly visible on the exterior surface of the
station, indelible, tamperproof and affixed in such a manner as not to be
removable except by destruction or defacing.
(4) The requirement of paragraph 5 (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.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 6
Adjustment Mechanisms
6. (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 no longer complies with this standard.
(2) An 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.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 7
Conditions of operation
7. (1) The requirements of Parts 3, 4, 5 and 6 shall be met by a device when
it operates at:
(a) ambient temperatures of between 5degree C and 40degree C inclusive;
and
(b) primary supply voltages within +-10% of that declared by the
manufacturer.
(2) The requirement of Parts 4 and 6 shall be met by:
(a) a device when placed on a non-conducting surface 1.5 metres above the
ground with the antenna extended vertically; and
(b) a base station when the AC mains cable and telephone interconnect cable
are suspended vertically below the non-conducting surface.
(3) The requirements of Part 5 shall be met by a device when operating into
the standard AC mains network.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 8
Antenna
8. Subject to clause 17 a device shall not incorporate, or make provision
for the connection or use of, any antenna other than one which is an integral
and permanent part of that device.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 3
PART 3-TRANSMITTERS GENERAL
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 9
Application
9. In this Part "transmitter" means a radiocommunications transmitter of a
base or portable station.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 10
Nominal carrier frequency
10. (1) Subject to clause 11, a transmitter shall only be capable of
operating on a channel designated in the first column of the table set out in
item 2 of the schedule, being a channel whose nominal carrier frequencies are
respectively specified in the second or third column of that table
corresponding to the designated channel.
(2) A transmitter shall operate on only one channel at any one time.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 11
Frequency error
11. The carrier frequency error of a transmitter shall not exceed +-2 kHz.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 12
Frequency deviation limiting
12. The maximum frequency deviation of a transmitter carrier frequency shall
not exceed +-5 kHz under any modulation conditions.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 4
PART 4-TRANSMITTERS OPERATING ON A NOMINAL CARRIER FREQUENCY EXCEEDING 2
MHz
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 13
Application
13. In this Part "transmitter" means a radiocommunications transmitter of a
base or portable station operating on a nominal carrier frequency exceeding 2
MHz.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 14
Carrier frequency field strength
14. The carrier frequency field strength of a transmitter shall not exceed
96 dBuV/m at a distance of 3 metres from the transmitter.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 15
Unwanted emissions
15. (1) The power level of each unwanted emission from a transmitter
relative to the unmodulated carrier power level of the transmitter shall be
attenuated by:
(a) at least 23 dB where the frequency of the emission differs from the
operating carrier frequency by more than 8 kHz but not greater than 25 kHz;
and
(b) at least 40 dB where the frequency of the emission differs from the
operating carrier frequency by more than 25 kHz but not greater than 50 kHz.
(2) The field strength of each unwanted emission from a transmitter at a
distance of 3 metres from the transmitter shall not exceed:
(a) 46 dBuV/m where the frequency of the emission differs from the
operating carrier frequency of the transmitter by greater than 50 kHz but does
not exceed twice the operating carrier frequency; and
(b) 36 dBuV/m where the frequency of the emission exceeds twice the
operating carrier frequency of the transmitter.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 5
PART 5-TRANSMITTERS OPERATING ON A NOMINAL CARRIER FREQUENCY NOT EXCEEDING 2
MHz
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 16
Application
16. In this Part "transmitter" means a radiocommunications transmitter of a
base station operating on a nominal carrier frequency not exceeding 2 MHz.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 17
Radio frequency mains coupling
17. A transmitter shall be capable of coupling the radio frequency output
energy only to the AC mains network.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 18
DC power input
18. The design of the transmitter final stage shall be such that the DC
power input to that stage shall not exceed 300 mW.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 19
Mains coupled interference
19. The power level of mains coupled interference from a transmitter shall
be suppressed at least 30 dB relative to the conducted carrier power level.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 6
PART 6-RECEIVER
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 20
Radiation
20. The field strength of each radiation from a base or portable station
receiver shall not exceed 36 dBuV/m at a distance of 3 metres from the
receiver.
1987 No. 237 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - SCHEDULE
SCH
SCHEDULE
Item 1 THE FORM OF A COMPLIANCE STATEMENT
"COMPLIES WITH MS302
TYPE APPROVAL NO. . . . . . . . . ." Clause
5
Item 2 NOMINAL CARRIER FREQUENCIES Clauses 5
and
10
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Transmitter Base Station Transmitter Portable Station
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Channel Nominal Nominal
Designator Carrier Carrier
Frequency Frequency
(MHz) (MHz)
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-- A 1.725 40.025 5
B 1.740 40.075 5
C 1.755 40.125 5
D 1.770 40.175 5
E 1.785 40.225 5
1 30.075 39.775 5
2 30.125 39.825 5
3 30.175 39.875 5
4 30.225 39.925 5
5 30.275 39.975 5
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