Curious: exactly what type of aeroplanes give an echo when listening to one freq on both radios?
Not to mention 2 radios broadcasting the same thing back to you.
No problem with that. If one radio dies, the other keeps "talking".
If I remember correctly when both Comms were set to the same frequency Capt listened to Comm 1 and First Officer listened to Comm 2.
Not both pilots listening to both Comms. Long time ago though.
Did listen to both comms; you could tell which radio the other guy was transmitting on.
Due to the need to monitor two separate freqs now (CTAFs) we changed our SOP to transmit on Comm 1 for ATC TX, and CTAFs on Comm 2. But below Transition in Class D/C, both comms on ATC, transmit on Comm 1. No echo.
"Echo" only occurs when ATC have Hi and Lo freqs combined. Now that
is bad!