While the mod provides more channels, these bands are often "dead" or have very low traffic unless used for private company communications or specific hobbyist groups.
Beyond the legal issues, a user should consider whether the modification provides a genuine practical benefit. midland 75822 channel mod
Even if a modification is "successful" from a software perspective, the hardware often cannot support the new frequencies effectively. The radio's internal filters and antenna circuitry are tuned specifically for the standard 40 channels. Operating outside this range often results in: While the mod provides more channels, these bands
A channel modification, sometimes referred to as an "export modification," involves altering the radio's internal firmware or hardware configuration to enable the microprocessor to access frequencies outside the standard 40 channels. This often includes frequencies in the "freeband" area or the 10-meter amateur radio band. Technical Nature of the Modification The radio's internal filters and antenna circuitry are
Opening the casing or altering the internal circuitry immediately voids the manufacturer’s warranty.
This modification allows the radio to access "uppers" and "lowers"—frequency bands just above and below the standard CB range.
Modders often pair the channel expansion with a "peak and tune" to improve performance: