AFC Disable

Causes the radio's AFC (Automatic Frequency Control) algorithm to be disabled. AFC automatically corrects for drifting of the radio’s Reference Oscillator (RO) by resolving the frequency of the received RF signal and feeding back an error signal proportional to the degree to which the RO is mistuned, which in turn reduces the tuning error. However, it may be beneficial to disable AFC for noisy environments, where the error signal may track to a interference frequency instead of the allocated one. When AFC is disabled, the Reference Oscillator must be kept accurately tuned. This selection applies for all Trunking Systems and therefore to all Trunking Personalities.

When the radio is model / option capable.