I was doing some browsing on the subject of CB, and came across this
article. It is overly obvious, that this person hasn't the slightest clue
about CB radio, yet spews forth his "knowledge" as if it were all fact...

A few favorite quotes:

"...according to Mark Pili, owner of Karl's C-B Shop in Las Vegas,
Nevada,... The actual potential output from a 100% legal, stock,
out-of-the-box CB radio at full modulation is much closer to 7 watts. By
adjusting the potentiometer 'pot' setting inside a CB radio, a technician
can adjust this potential output upward to nearly 11 watts, and the "4-watt"
radio will still be legal."

"...any 10-meter amateur radio can be easily modified to work on the CB
channels...Initially these radios were used to just reach the 40 channels
below and the 40 channels above the common 40 CB channels. This is what is
referred to Single Side Band (SSB). These radios have switches for Lower
Side Band (LSB) and Upper Side Band (USB)."

http://www.roadtripamerica.com/dashb.../CB-Radios.htm