Popham Airfield's radio frequency is 129.805 MHz (8.33 kHz spacing) air-to-ground only with an additional operations frequency of 131.405 MHz (8.33 kHz spacing) for the resident flight school.
The radio channel allocated to Popham Airfield is 129.805 MHz with a spacing of 8.33 kHz, used only for air-to-ground transmissions, and an additional frequency of 131.405 MHz with the same spacing, reserved for the in-house flight training program.