I have a General Electric CB radio Model 3-5813B mounted in

Hi Tim,
I hope this is what you are looking for .Here is the table for cb radio frequency use.It depends on the channel you select as to whether it is 27mhz or 29mhz.Another great source is here.
Hope this helps

Hi Tim, you certainly have your wires crossed about 29 MHZ having anything to do with CB. Actually 27 MHZ where CB is now, used to belong to Ham radio back in the 50's. The old 23 channel radios are in the 27 MHZ band. CB starts at the high end of 26 MHZ and ends at the mid part of 27 MHZ. It is illegal for anyone without a Ham radio licence to transmit on 28 to 30 MHZ and it is illegal to have a CB that is not type accepted. Any mods void that acceptance.

Your issue is easy to find out. All you need is a simple frequency counter to find out what channels you are on. No connection to the radio is required. Try a local radio shop, they may have a handheld unit to use.

The table below is the ONLY legal CB frequencys. Anything else is illegal unless you are a licensed Ham operator which still gives no authority above channel 40, the so called "Bandit Frequencies." The "OLD" cb channels are 1-23. The FCC expanded the channels to 40. Radios modified above channel 40 are illegal to operate and they can show up in the low part of the Ham's 10 meter band at 28 MHZ if modified. If anyone wants to operate on ham radio frequencies, I suggest they get a license. It is easy to get started and the test will confirm your knowledge of some simple electronic theory. This is a disiplined service and you are required to follow the laws of FCC part 97, just as CB people are to follow FCC part 95. rules and regs. It is not a free for all for either service.

CB radio diagrams are available through Sams Photofact CB series books. Regards XXXXX XXXXX hope this explains the situation for you. Brad