Doesn't Guard transmit over the same remote transmitter/receivers and ARTCC freqs? If you don't get Center on an assigned freq for that sector, how do you receive Guard over the same transmitter?
I think because you're hearing it over multiple transmitters. For example if you're not hearing ZAB, but you can kind of get ZLA, then you'll hear the guard call over all of the ZLA transmitters. I also wonder if sometimes the controllers don't always remember to switch transmitters when calling before going to guard. I'm sure we've all heard the double-call from Center because the first call went out on a transmitter that wasn't near the plane, then after a switch to a different transmitter, that plane hears the call.
I've also had Memphis lose me right as I needed the turn to the FAC into MEI. I was IMC, so they were eager to get me back up. A guard call got me up to a different freq
just before I was about to switch over to tower to try and get the clearance from them.
There's the problem, you're flying a helicopter....
(Smiles and shit for the douchey reply)
This was in fixed-wing. Ironically, despite having 5 different radios in the commercial helicopter (6 if you include the SAT phone), there aren't enough radios to monitor guard. Oh well. I never really understood why a monitor function is such a new thing on civilian radios now.