Services - CB Channel Usage
Many of the listed channel usages below are generally accepted use among CB operators. Although the channel usage is not designated by law many of the designations have been in place since CB radio was first used in Australia. One of the exceptions to this is the use of the Emergency Channels (5 & 35 on UHF, & 9 on HF). These emergency designations are legally recognized. You must not use these channels except during an emergency.
There are specific conditions regarding personal conduct during operation of a CB radio station, and penalties apply for improper conduct. In particular, the CBRS class licence states that: A person must not operate a CB station in a way that would be likely to cause a reasonable person, justifiably in all the circumstances, to be seriously alarmed or seriously affronted, or for the purpose of harassing a person.
Here you will find information relating to over-seas CB call frequencies.
Australian UHF Channel Usage
Channel Duplex/Simplex Use
Channel 1 - 4 Duplex - Output Chat via repeater
Channel 5 Duplex - Output Emergency use only
Channel 6 - 8 Duplex - Output Chat via repeater
Channel 9 Simplex General Chat
Channel 10 Simplex 4WD Drivers - Convoy, Clubs & National Parks/State Forest
Channel 11 Simplex Call Channel - Then move to vacant channel
Channel 12 - 17 Simplex General Chat
Channel 18 Simplex Caravan & Campers Convoy Channel
Channel 19 - 21 Simplex General Chat
Channel 22 Data Data Only - No Voice
Channel 23 Data Data Only - No Voice
Channel 24 - 28 Simplex General Chat
Channel 29 Simplex Pacific Hwy (NSW) & Bruce Hwy, Hume Hwy, (QLD) Road Channel
Channel 30 Simplex Warnings / Broardcasts in some areas
Channel 31-34 Duplex - Input Do not use
Channel 35 Duplex - Input Emergency Use Only (Transmit frequency for Channel 5)
Channel 36 - 38 Duplex - Input Do not use
Channel 39 Simplex General Chat
Channel 40 Simplex Highway (Truck) Channel, if not using Ch 29.
Channel 41 - 48 Duplex - Output Chat via repeater
Channel 49 - 60 Simplex General Chat
Channel 61 Simplex Reserved for Future Expansion
Channel 62 Simplex Reserved for Future Expansion
Channel 63 Simplex Reserved for Future Expansion
Channel 64 - 70 Simplex General Chat
Channel 71 - 78 Duplex - Input Do not use
Channel 79 - 80 Simplex General Chat
Updated On: 10/08/2020
