FRS/GMRS Frequency Allocation and Compatibility Important: Please note that Cobra GMRS models with 15 Channels may designate different channel numbers for the same frequency. For example, a Cobra 15 Channel GMRS model would need to be tuned to Channel 11 in order to communicate with a 22 Channel GMRS tuned to Channel 15. Please refer to the chart below for channel/ frequency number compatibility. A = Channel No. for 22 Channel FRS/GMRS Models B = Channel No.
