AJ From Australia, joined Nov 1999, 2402 posts, RR: 25
Reply 1, posted (11 years 4 months 2 weeks 1 day 1 hour ago) and read 6045 times:
Guard is another term for 121.5 (and other prescibed frequencies), the international distress frequency. As many aircraft monitor this frequeny it is sometimes used as a backup to contact an aircraft that has not responded on the ATC frequency.
It is also the cause of much heartache for those who accidentally transmit on it. It may result in "You're transmitting on guard", but nastier airmen have been known to say "go-ahead" so the unwitting pilot broadcasts his or her entire message before being abused by all and sundry!
Slamclick From United States of America, joined Nov 2003, 10062 posts, RR: 67
Reply 2, posted (11 years 4 months 2 weeks 23 hours ago) and read 6017 times:
Now I assume that you were not necessarily listening on 121.5 and maybe wondering how you heard that transmission. When unable to contact an airplane, controllers can transmit on several frequencies at once.
Happiness is not seeing another trite Ste. Maarten photo all week long.
DC-10Tech From United States of America, joined Jun 2001, 298 posts, RR: 2
Reply 3, posted (11 years 4 months 2 weeks 19 hours ago) and read 5944 times:
A lot of scanners and towers (and some aircraft) automatically monitor and broadcast the gaurd freq in conjuction with whatever channel is programmed in. When I was at Travis AFB, the tower transmitted on the current frequency and on gaurd at all times.
JBirdAV8r From United States of America, joined Jun 2001, 4498 posts, RR: 21
Reply 4, posted (11 years 4 months 2 weeks 17 hours ago) and read 5912 times:
I think every tower, TRACON, and center in the US monitors guard frequency, as well as the military.
In times of orange alerts, I always have my Com 2 tuned to 121.5 and monitoring. I've heard more than a few aircraft being told to evacuate airspace immediately or risk being shot down. I also carry a pamphlet on intercept procedures (good to memorize), just in case.
Sccutler From United States of America, joined Jan 2000, 5756 posts, RR: 27
Reply 6, posted (11 years 4 months 2 weeks 1 hour ago) and read 5807 times:
...it is always interesting to monitor 121.5 while flying in the central Texas area (near Pres. Bush's Crawford enclave) when the President is in residence. The USAF broadcasts its warning messages to aircraft entering the expanded P49 TFR. Have heard "intercept in progress" a couple of times, and know that was the sound of a pilot's certificate evaporating for a suspension period.
Amazing how rarely the interlopers (despite FSS admonitions to watch for the area and to monitor 121.5) are listening. More amazing is that anyone would blunder in there - the airspace is extremely well-marked on the sectional.
...three miles from BRONS, clear for the ILS one five approach...