Hi all, a simple question I think: I receive a Cobra 2000GTL and I need to adjust the frequency. The voice lock is not modified and I can not swing the radio frequency to a normal channel, for example if I go to channel 40 which should 27.405 it reads 27.399 and I tested it with a frequency counter and the radio is indeed on 27.399. I see an adjustment listed for the counter, adjusting CT501 but will that actually adjust the frequency or just move the counter? If it does not actually adjust the frequency what can I do to put the radio on the correct frequency with the voice lock at mid-range. Thanks for any help. Adam