Quote:
Originally Posted by RyanS
3. Keep on a radio frequency that can best help you in an emergency. If it’s an option, consider keeping 121.5 dialed in on your #2 radio.
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Most airlines keep 121.5 tuned in and active on the 2nd radio while in cruise. It's great in case you need to transmit on it, but it's also very helpful if you miss a frequency change and haven't noticed you're in the abyss with no one talking to you, since ATC at some point will transmit on that to try to find you. (This obi relates mostly to IFR flights).
Unfortunately a lot of airline pilots are so bored they have nothing better to do than be 'guard police' but whatever... to each their own.
Anyways, if you have a 2nd radio and you can tune to it. I can't see much better uses than activating a listening on 121.5 just while you have nothing better to do.