This modification allows the radio to access "uppers" and "lowers"—frequency bands just above and below the standard CB range.
Frequencies outside the standard 40 channels are often reserved for critical services, including emergency responders, aviation, and government communications. Unauthorized transmissions can cause life-threatening interference. midland 75822 channel mod
A: No. Range is determined by antenna, line-of-sight, and transmit power (still 4W max). Mods reduce efficiency, so range decreases . This modification allows the radio to access "uppers"