Technical note: CB Radios - part 2.
As stated before, the standard CB Radio has 40 channels and puts out an AM signal of 5 Watts of power; unless that radio was made before 1977, then it is 23 channels. In truth, most radios are set back to about 4 watts of power, and most radios can be pushed to produce more power, as much as 3X the power or 15 watts, if the final output stage can handle that power. Most can push 8 to 12 watts out the box, but only a 'Radio doctor' can peak a radio's output as he has the tools to do so. Most importantly - a oscilloscope to see the signal as it is being put out and adjusted.
But there other options a CB Radio can have. Side Band Modulated Transmission is the most popular. It doubles the output of the signal but only 1/2 the carrier wave is being used. Since it doubles the output, it doubles the range and can easily get onto a skip.
Just because the radio is bigger and has a lot of buttons, does not mean that it is a better radio. The most popular radio among truckers is the Cobra 19 series:
(modern 40 channel Cobra 19)
(older but still modern 40 channel Cobra 19+)
(older 23 channel Cobra 19)
It is easy to peak and tune, and simple to use. It is a very basic CB radio that can take a lot of abuse.
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The older 23 channel radios are stronger as in they can handle a EMP or No Tech Zone area as they do not have Integrated Circuits (ICs). The newer 40 channel radios do and if they are not protected inside a Faraday Cage, can be damaged in a EMP or No Tech Zone.
But that is it for standard radios.
Most radios can be modified, depending on the radio and the modification used. The Peak & Tune is a modification where one is increasing and cleaning out the signal and its power, and is the basic and needed of all Radio modifications.
Another simple modification is the Between Channels all CB radios can have. In the original 23 channels, a "channel frequency" is skipped every 4 channels. This creates an empty slot for a total of 6 "extra channels." Adding a switch to the channel circuitry you can get these extra 6 channels.
Note: After channel 24 to 40, there are no more skipped channel frequency slots.
More on Mods on Part 3...