TM9400 Specifications Manual Introduction 7
© Tait Limited November 2016
Australia and New Zealand Citizens Band
AS/NZS 4365 deals with the use of frequencies in the 476.425 to
477.4125MHz band. Products capable of operating in this band have been
approved for operation in the UHF Citizens Band Radio Service which is
licensed in Australia by the ACMA Radiocommunications (Citizens Band
Radio Stations) Class Licence and in New Zealand by the MBIE General
User Radio Licence for Citizens Band Radio. Operation is subject to
conditions contained within those licences.
Repeaters operate by receiving a transmission on one channel and re-
transmitting it on another. Operators are required to avoid using local
repeater input channels, which will be in the range of 31 to 38 (and 71 to
78 when authorized), unless it is intended to use the repeater facility, and to
avoid using local repeater output channels, which will be in the range 1 to
8 (and 41 to 48 when authorized), at any time. Operators must always listen
in on a channel (or observe a channel-busy indicator) to ensure it is not
already being used before transmitting.
No voice transmissions are permitted on data channels 22 and 23.
Equipment meeting this standard will inhibit voice operation on channels
22 and 23.
Operators must be aware of the consequences of narrowband (2.5kHz
deviation) transmissions being received on older wideband equipment, and
wideband (5.0kHz deviation) transmissions being received on newer
narrowband equipment. They should also be aware of the possibility of
interference due to older equipment being operated on channels adjacent to
new narrowband channels. The list of currently authorized channels can be
obtained from the ACMA website in Australia and the MBIE website in
New Zealand.
In Australia:
■ Except in an emergency, a CB transmitter must not be operated on UHF
channels 5 and 35.
■ Channel 11 is the customary calling channel for establishing
communications.
■ Channel 40 is the customary road vehicle channel.
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