40 UHF CB- Truckies
40 UHF CB- Truckies
Does anyone know the the forty channels are used for, as in I know ch40 is for truckies but I also hear allot of chatter on channel 3 and 8, who uses these channels and what for.
Per Ardua-Ad Astra
40 chan UHF
dazza i know that chan 3 is Rollingstone reapter... but im not quiet sure on chan 8
UHF CB is for anyone to use. Channels 1-8 (and 31-38) are used for duplex mode repeaters, which use one channel to send to the repeater, and the other to receive from the repeater. This gives an increase in coverage with the repeater station typically located on the top of a hill/tower.
Channel 5/35 is reserved for emergency traffic only, and channels 22 and 23 are for data transmission only (although not packet data as used by hams).
CB is possibly the only place you'll find people with less discipline than police or security officers, with anyone being able to tx (with a $40 handheld).
I'm pretty sure I got the channels right, it's off the top of my head. All the other channels are just simplex channels for 2-way voice transmission. Often people will call someone on a channel, then change to another channel not currently in use to continue their conversation.
Channel 5/35 is reserved for emergency traffic only, and channels 22 and 23 are for data transmission only (although not packet data as used by hams).
CB is possibly the only place you'll find people with less discipline than police or security officers, with anyone being able to tx (with a $40 handheld).
I'm pretty sure I got the channels right, it's off the top of my head. All the other channels are just simplex channels for 2-way voice transmission. Often people will call someone on a channel, then change to another channel not currently in use to continue their conversation.
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You got it Jonzey.
Although technically 40 is just a channel truckies use, it isn't assigned in the legal gunk outlining CB (the CBRS class license)
The CBRS license also designates ch11 as a calling channel.
Channels 1 through 8 (and the corresponding ch31-38 ) are repeater stations.
The ch1 repeater in Wanneroo for example listens on ch31 and retansmits whatever it hears there onto channel 1. Your radio when transmitting does the opposite - transmits on ch31 and listens on ch1.
Ch5/35 is an emergency channel. Don't let anyone tell you otherwise. It is monitored and it is an official emergency frequency.
Although technically 40 is just a channel truckies use, it isn't assigned in the legal gunk outlining CB (the CBRS class license)
The CBRS license also designates ch11 as a calling channel.
Channels 1 through 8 (and the corresponding ch31-38 ) are repeater stations.
The ch1 repeater in Wanneroo for example listens on ch31 and retansmits whatever it hears there onto channel 1. Your radio when transmitting does the opposite - transmits on ch31 and listens on ch1.
Ch5/35 is an emergency channel. Don't let anyone tell you otherwise. It is monitored and it is an official emergency frequency.
Last edited by vk6hgr on Mon May 30, 2005 10:35 am, edited 1 time in total.
Gavin Rogers; VK6HGR
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Volunteers, usually. However, I know that it is also monitored by aircraft especially as they fly over remote areas.dazla wrote:cheers guys, when you say 5/35 is monitored, who by?
Gavin Rogers; VK6HGR
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Re: 40 UHF CB- Truckies
As well as all of the abovementioned stuff, UHF CB channels 22 and 23 are also set aside by the ACA for "telemetry and telecommand" purposes.dazla wrote:Does anyone know the the forty channels are used for, as in I know ch40 is for truckies but I also hear allot of chatter on channel 3 and 8, who uses these channels and what for.
Some handy reference material:
* The Class Licence as published by the ACA
http://internet.aca.gov.au/acainterwr/a ... s/cbrs.rtf
* Information on what the class licence means
http://internet.aca.gov.au/ACAINTER.131 ... pc=PC_1265
(If these links don't work directly, just go to http://www.aca.gov.au/ and in the menu bar down the left side of the screen, click on Licencing, Radiocommunications, then Class Licences).
Hope this helps and doesn't just confuse things even more!
Stations
I was recently in shark bay and the CALM volunteers up there in the remote areas i was working with had huge ariels plugged into cb's and scanners
constantly scanning channels 5 and 35
is there an official body that moniters these channels as well?
constantly scanning channels 5 and 35
is there an official body that moniters these channels as well?