Frequency Formula for 72 MHz Channels

The formula for computing the frequency for any 72 MHz channel number is:

Frequency (MHz) = 72.010 + (Channel Number - 11) × 0.020

For example, Channel 30 = 72.010 + (30 - 11) × 0.020 = 72.010 + 0.380 = 72.390 MHz

This is historical reference — modern 2.4 GHz spread-spectrum radios don't use fixed channels.

See also: U.S. Frequencies · Radio Systems