UHF CB Radio

UHF CB Radio

Many trucks, 4WDs, caravans, campervans and em­er­gency service vehicles carry UHF CB radios.  They offer a handy alter­n­ative to mobile phones for com­munica­tion or if you need em­er­gency assist­ance.

CB works any other kind of radio, it has to be on and tuned to right 'station' for you to hear anyth­ing.  And, like talkback radio, every­one listen­ing in can hear what you say.  Con­versat­ions are not priv­ate and other people can join in at any time.

UHF CB Radios do not require a licence to own or use, and there are no call charges.  You cannot call a specific person, only speak on a channel and hope they are listen­ing.  The range will vary with the power of the device and the antenna used.  A hand-held device may only work over 1-2 km, enough to keep in con­tact with a travell­ing group, while a vehicle mount­ed unit can work much further.

UHF CB Radios use set frequenc­ies, call­ed channels, to talk to each other.  Con­versat­ions are not priv­ate.  Anyone within range and on the same channel, can listen in or join the con­versa­tion.  Some people welcome new con­versat­ions, some don't.  Channels are shar­ed and polite­ness is ex­pect­ed.  Many channels have a specific purpose, such as being for em­er­gency calls only.

Channel Usage

Where Do We Start?
Channel 11 is used to contact other UHF CB users before moving to a free Chat Channel to continue your conversation. You can meet nearby people here, but be polite and move the conversation to another channel.
Where Do We Chat?
General chatting is done on channels 9, 12-17, 19-21, 24-28, 30, 49-60, 64-70 and 79-80. Move your conversation here after meeting someone on the Calling Channel. Remember that conversations are not private and can be heard by anyone within range. Others may also join in unexpectedly.
Are There Channels for 4WD Clubs and Convoys?
Channel 10 is used by 4WD groups and clubs to stay in touch with each other. Use this channel if part of the group, otherwise use the general chat channels. Also used in National Parks.
What is The Best Channel for Caravan and Camper Convoys?
Channel 18 is used by travelling groups of caravans or campervans to stay in touch. If you're not part of the group, you may be able to introduce yourself if you're like-minded or have something to add to the conversation. It's a great way to meet other groups travelling nearby.
Is There a Road Safety Channel?
Channel 40 is used Australia-wide by truck drivers, pilot vehicles and oversized loads to let each other know about special road conditions. Many travellers monitor this channel.
What Are Repeater Channels?
Repeaters relay your voice over a large area for long distance communication, but this also prevents other people using the same channels. Use channels 1-8, 31-38, 41-48, 71-78 for this. Do not use these for general chat.
Why Are Some Channels Disabled?
Channels 22, 23, 61-63 are reserved and not available for voice chat. They are often disabled on your radio.
Which Channel Should I Use in An Emergency?
Channels 5 & 35 are for emergency calls only. If you have a real emergency use these to call for help, as you would by dialling 000 on a phone. Volunteers, police and emergency services monitor these channels and will respond. There are heavy penalties for misusing the emergency channels.

UHF Channel Signs

Often you will see a caravan or camper with a UHF Channel number on it.  These people often happy to chat with locals or fellow travellers nearby.  Introduce yourself!

updated 14/06/2022