1987 No. 220*1* STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983
*1* Notified in the Commonwealth of Australia Gazette on 30 September 1987. 1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 1
STANDARD FOR HEADSET COMMUNICATORS
PART 1-PRELIMINARY
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 1
Citation
1. This standard may be cited as "Ministerial Standard 306".
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 2
Commencement
2. This standard shall come into operation on 1 October 1987.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 3
Interpretation
3. In this standard unless the contrary intention appears-
"dBuV/m" means decibel relative to one microvolt per metre;
"device" means a device to which this standard applies;
"emission" means radiation produced, or the production of radiation, by a
radiocommunications transmitter;
"headset communicator" means a device intended to be worn on the head and
which incorporates a radiocommunications transmitter or receiver;
"kHz" means kilohertz;
"MHz" means Megahertz;
"mm" means millimeter;
"MS" means Ministerial Standard;
"out-of-band emission" means an emission which results from the modulation
process, on a fequency or frequencies outside the permitted bandwidth, but
excluding spurious emissions;
"permitted bandwidth" means the 16 kHz band centred on the
radiocommunications transmitter operating carrier frequency;
"radio transmission" has the same meaning as in section 3 of the
Radiocommunications Act 1983;
"radiation" means the outward flow of energy from any source by means of
radio transmission;
"radiocommunications transmitter" has the same meaning as in the
Radiocommunications Act 1983;
"receiver" has the same meaning as in 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 device" means a device which complies with this standard;
"unwanted emission" means a spurious emission or an out-of-band emission;
and
"C degress" means degrees Celsius.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 4
Devices to which this Standard applies
4. This standard shall apply to radiocommunications transmitters and
receivers used in the operation of headset communicators.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 2
PART 2-GENERAL
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 5
Equipment markings
5. (1) Subject to sub-clause 5 (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
sub-clause 5 (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 expect by destruction or defacing.
(3) 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. 220 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. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 7
Antenna
7. A device shall not incorporate:
(1) an antenna, other than single element antenna of not more than 500 mm
in length when fully extended; or
(2) any provision for attachment of an external antenna and shall employ an
antenna which is an integral part of that device.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 8
Conditions of operation
8. (1) The requirements of Parts 3 and 4 shall be met by a device when it
operates at:
(a) ambient temperatures of between 5 C degrees and 40 C degrees inclusive;
and
(b) primary supply voltages within +-10% of that declared by the
manufacturer.
(2) The requirements of Parts 3 and 4 shall be met by a device when placed
on a non-conducting surface 1.5 metres above the ground with the antenna
extended vertically.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 3
PART 3-TRANSMITTER
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 9
Application
9. In this Part "transmitter" means a device which is a radiocommunications
transmitter.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 10
Nominal carrier frequency
10. A transmitter shall not be capable of:
(a) operation on any channel other than those designated in the first
column of the table set out in item 2 of the schedule being a channel whose
nominal carrier frequency, subject to Clause 11, is specified in the second
column of that table opposite that channel designator; or
(b) transmitting on more than one of the designated channels at any one
time.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 11
Frequency error
11. The carrier frequency error of a transmitter shall not exceed +-2.5 kHz.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 12
Carrier frequency field strength
12. The carrier frequency field strength of a transmitter shall not exceed
92 dBuV/m at a distance of 3 metres from the transmitter.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 13
Unwanted emissions
13. The field strength of each unwanted emission from a transmitter at a
distance of 3 metres from the transmitter shall not exceed:
(a) 72 dBuV/m where the frequency of the emission differs from the
operating carrier frequency by greater than 8 kHz but not greater than 50 kHz;
and
(b) 52 dBuV/m where the frequency of the emission differs from the
operating carrier frequency by greater than 50 kHz.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - PART 4
PART 4-RECEIVER
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - REG 14
Radiation
14. The field strength of each radiation from a device which is a receiver
shall not exceed 38 dBuV/m at a distance of 3 metres from the device.
1987 No. 220 STANDARD UNDER THE RADIOCOMMUNICATIONS ACT 1983 - SCHEDULE
SCH
SCHEDULE
Item 1 Compliance Statement Clause
5
"COMPLIES WITH MS 306
TYPE APPROVAL NO.........."
Item 2 Nominal carrier frequencies: Clause
10
Channel Nominal
Designator Carrier
Frequency
(MHz)
A 55.020
B 55.035
C 55.050
D 55.065
E 55.080
F 55.095
|