The DSMRA is proud to note that we have now acquired a specific radio licence - so our riders can use their own unique frequency on the UHF Frequency. The DSMRA recommends the usage of the Icom 41W handheld radio with microphone or the new version the Icom 41 Pro. Both of these can be programmed for these channels.
The details can be found below.
Australian CB Radio - What is UHF?
Simply put, UHF CB or citizen band radio is a two-way radio system that uses the 476.4250–477.4125MHz, radio spectrum for short-distance communications.
It is divided into 80 channels for various uses. The service is for public access and available to everyone but not all channels can be used by anyone for just any reason – there are significant penalties for misuse of channels.
For example, the Australian Government has legislated that channels 5 & 35 on the UHF CB Band are reserved for emergency use only
As at January 2007 the maximum penalties for the misuse of the legally allocated CB emergency channels are:
- For general misuse – if an individual 2 years imprisonment, otherwise $165,000 (a $220 on-the-spot fine can be issued in minor cases); or
- For interference to an Emergency call – if an individual 5 years imprisonment, otherwise $550,000
LEGALLY RESTRICTED CHANNELS
The following channels are legislated as a part of the ACMA UHF CB Class Licence.
- Channel 5 and 35 are the designated emergency channels, and are not to be used except in an emergency. To make an emergency call, switch your radio to Channel 5 with duplex on, if there is no response, try again with duplex off.
- Channel 11 is the ‘call channel’ and is only to be used for initiating calls with another person, you should quickly organise another vacant channel to continue your discussion on.
- Channel 22 and 23 are only to be used for telemetry and telecommand, packet data and voice transmission are not allowed.
- Channel 61, 62 and 63 are reserved for future allocation and transmission on these channels is not allowed.
UHF’s distinct advantage over mobile phones is that it can work anywhere and requires little to no infrastructure to be in place. At the user end, all that is required is a basic radio set. The key disadvantage is that it operates on a line-of-sight basis, and therefore has very short reach. Under normal conditions, you can expect a good signal over a distance of 5 to 8km; in a high position (such as a hill), this can be increased to up to 25km. The upside is that you’re always communicating with those who are in your immediate vicinity.
Each of the 80 UHF channels has the following accepted use:
- Channels 1–8 and 41–48: duplex channels (output).
- Channels 31–38 and 71–78: duplex channels (input).
- Channels 5 and 35: duplex channels strictly used for emergency communications.
- Channels 9, 12 -17, 19–21 24–28, 30, 39, 49-60, 64-70, 79 and 80:general chat channels, simplex use.
- Channel 10: 4WD Clubs or Convoys and National Parks.
- Channel 11: Call Channel used for locating friends – a general meeting point for when communications are lost or beginning, before moving to another channel.
- Channel 18:Caravanners and Campers Convoy Channel.
- Channel 40: Australia Wide road safety channel used primarily by truckies and oversized load pilot vehicles.
- Channels 22 and 23 (25kHz):Telemetry & Telecommand used for automated data communications only.
- Channel 29: Road safety channel Pacific Hwy, Pacific Mwy (NSW & QLD).
- Channels 61–63: reserved for future use