Just to set things straight. CB is not limited to just 4 watts. The civilian full legal limit is 4 watts, but you can find people who will bump that up by 11 watts giving you 15 watts of output. Barely noticable at first, but when you need that extra power to call someone on ch 9, its there. I knew a guy down near Terre Haute Indiana who would do it for anybody for $50 plus parts, depending on your radio. However, because of my positon in the military, my CB unit will transmit between 5 and 100 watts. I can transmit at 5 watts, 25 watts, 50 watts, and 100 watts. I however am also one of a very selected few, who is authorized by the FCC to have such equipment and transmit at high levels using the citizen's band radio.