4 ms·
“Guard” is a common frequency for all pilots to listen/communicate. It’s very rarely used as intended and is mostly cat meows and fart noises.
by leoqa 5y ago
“Guard” is a common frequency for all pilots to listen/communicate. It’s very rarely used as intended and is mostly cat meows and fart noises.
- addaon 5y agoGuard frequency (121.5) is different than "guard bands" in this context. Guard bands are, as was guessed, a frequency range at the edge of an allocation where no energy is /intentionally/ transmitted, and where received signal /should be/ disregarded. Basically it allows the reality of some frequency spillage to be accommodated between what would otherwise be adjacent frequency allocations.
- mlindner 5y agoThat is completely unrelated. https://en.wikipedia.org/wiki/Guard_band https://en.wikipedia.org/wiki/Guard_band