Channel Use
The use of some UHF CB channels is restricted under the Class Licence. The restricted channels are as follows:
- Channel 5 and 35: designated emergency channels are not to be used except in an emergency.
- Channel 11: designated 'Call Channel' and is only to be used for initiating calls.
- Channel 22 and 23: only to be used for telemetry and telecommand, packet data not allowed.
- Channel 61, 62 and 63: are reserved for future allocation.
Some UHF CB channels are used by consensus for specific purposes. These channels are:
- Channel 10: used Australia wide as the '4WD and Convoy Channel'.
- Channel 18: used Australia wide as the 'Caravan and Campers Channel'.
- Channel 29: used as the 'Road Channel' on the F3, Pacific Highway and Bruce Highway between Brisbane and Sydney to avoid interference from users using channel 40 on other highways.
- Channel 40: used Australia wide as the 'Road Channel'. Extensively used by truck drivers for safety communications and traffic updates however due to interference between the New England and Pacific Highway communications, truck drivers between Sydney and Brisbane use channel 29 if they are travelling via the Pacific Highway.
Users should be aware that UHF CB channels 31 to 38 and 71 to 78 are the 'input' channels for repeaters on channels 1 to 8 and 41 to 48, and should avoid using these channels at all times to avoid interfering with a repeater.
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