The FAA reviews and engineers all aviation Air-to-Air AM frequencies for all Airtanker Bases each year. Usually, the frequency 123.975 MHz is assigned for this purpose. However, if the frequency is not available at a given location, the FAA will engineer an alternative frequency.

Due to engineering restrictions there are several new frequency assignments/changes to the National Airtanker Bases frequencies for fire season 2014. While most bases retain 123.975 as the RAMP frequency, there are notable changes effective immediately.

Read the entire Interagency Aviation Information Bulletin.