Is my radio transmitter working? At some point, that’s the question nearly every pilot will ponder when they check in on a frequency and get no reply. Most of the time, the radio is functioning properly, but other times it’s a real-world failure.
Electrical Efficiency Systems designed the $190 Trans-Ind radio transmitter monitor to take the guesswork out of these situations. It’s a portable unit that listens for radio transmit and voice modulation and displays the status using simple annunciation. It’s not perfect, but it might provide peace of mind, especially if you operate older equipment and are paranoid about communications failure.