Technisonic TFM-138 series airborne VHF/FM transceivers utilize state of the art frequency synthesis techniques to provide FM communications on every currently available channel within the VHF/FM High Band. These radios cover the entire band from 138 to 174 MHz in 2.5 KHz increments. Data entry and function control are via a front panel 12 button keypad. Operating frequency and other related data are presented on a 48 character two line LED matrix display which is available in either green or red.