Technical note: CB Radios - part 1.
I dare ask, what kind of CB radio(s) the spirits ask. CB Radios come in many shapes, sizes, how much power they push out, other options and functions. They can be standard or modified; and modified to what extent? It is a lot of options one has to consider.
A standard CB Radio is 40 channels (23 if it was made before 1977). They use AM Modulation for their signal and pushes out 5 watts which is more than enough to get out 15 to 20 miles unless it catches a skip and they can travel hundreds of miles.
So in theory if the conditions right, the group can contact Charlton, Tx. That is if the conditions are right. Only an experienced radio operator (like Hondo and I are in RL) can sense these conditions to some extent as it does not happen all the time.
Also, the power - is limited to 5 watts on radios, it is barely enough to get a skip. One can boost up the power but the radio limit itself is 10 to 15 watts. But you need to make sure that your radio is peaked (for power maximum, which is different for all radios) and tuned (so there is no frequency drift or splashing to other channels). Only a good "Radio doctor" can perform a proper "Peak & Tune." Though anything above 10 watts will get you a skip when the conditions are right, one may use power linears to get more power. A Linear is an external radio frequency amplifier that boosts the output of the radio from double to 1000X its power. But they take up a lot of power. A 1000watt linear will kill the electric camper's electrical supply. And in RL Linears are illegal to use though many do use them as the laws are not enforced; in the RPG those who can will have a linear to put out their signal as strong as possible. In RL, I can use a Power Linear up to 1500watts because I'm a Licensed Amateur Radio Operator by the FCC. I do own a few Linears with my equipment (25Watts, 125Watts and 250Watts) but for the moment choose not to use them unless absolutely necessary. Since CB do not need a license (since 1977), use of power linears is illegal to non-licensed operators. Again, this is a grey area as the laws are not enforced.
Problem: SWR stand for Standing Wave Ratio, which is how much power if reflected back into your radio from the antenna when you transmit. A High SWR is most cases is bad news - it kills your output and if enough power is reflected back in the radio, you can blow it up - literally. Using a linear - if all that amplified power is reflected back into your radio because of a high SWR, you will blow up your radio. And I mean blow up.
This happens because all that power gets reflected back into the final output stage of the radio frequency amplifier (inside the radio that gives it its 5 watts), over loads it, which gets over heated and then it goes off like a cherry bomb or 1/2 a stick of dynamite (depending on how big that final output stage is). So using a linear is not necessarily a good thing. And Linears do not amplify incoming radio signals from other stations, in fact, a bad linear makes the radio harder to find weak signal or skipped signal stations.