Welcome, Guest. Please login or register.
Did you miss your activation email?
November 20, 2014, 03:52:37 PM
Home Help Login Register      
News: LiveATC.net Flyers Released!  Please click here to download & print a copy and be sure to post at an airport near you!


+  LiveATC Discussion Forums
|-+  Air Traffic Monitoring
| |-+  Listener Forum (Moderators: dave, RonR)
| | |-+  Whats on 121.5 MHZ
« previous next »
Pages: [1] Go Down Print
Author Topic: Whats on 121.5 MHZ  (Read 6011 times)
flyMKEmilwaukee414
Guest
« on: April 14, 2006, 03:34:59 PM »

What kind of goverment is on 121.5 is it like the airport police or a special room for the emergery freqencie? does anyone know




 Cheesy



FLY MKE!
Logged
Umop3pisdn
Newbie
*
Offline Offline

Posts: 15


« Reply #1 on: April 14, 2006, 06:19:00 PM »

From what i looked up on the internet, "Aircraft Emergency" thats my unofficial answer
Logged
stealth71
Full Member
***
Offline Offline

Posts: 163



« Reply #2 on: April 14, 2006, 07:05:03 PM »

121.5, and (243.0 militar, are the standard aviation emergency frequencies used to transmit distress calls. They are monitored by air traffic control facilities. 121.5 is also the frequency used to transmit emergency locator transmitter signals when an aircraft goes down, although that frequency is slowly being replaced and will eventually be in the 800MHz band. ELT's are activated upon hard impacts and begin transmitting a warbling tone that can be triangulated using an ELT locator either on the ground or by search and rescue aircraft flying overhead near the crash site. ELT's can also be activated by a hard landing. At our airport, we occasionally have to get our locator and track down an ELT after a plane has landed hard. It takes a while, but we eventually find the ELT that is going off and reset it.
Logged

Chris Hart
Missoula International Airport (MSO) live feed.
http://www.liveatc.net/search/?icao=kmso

Ham Call: KE7MH
Umop3pisdn
Newbie
*
Offline Offline

Posts: 15


« Reply #3 on: April 14, 2006, 08:22:38 PM »

I was close   Cheesy
Logged
digger
Sr. Member
****
Offline Offline

Posts: 281


« Reply #4 on: April 14, 2006, 08:36:51 PM »

You may also hear it (and 243 in the UHF band) referred to as the "guard" frequency. I understand the name comes from the fact that somebody will always be tuned to that frequency--"guarding" it, so to speak.
Logged
Tomato
Sr. Member
****
Offline Offline

Posts: 277


« Reply #5 on: April 22, 2006, 12:35:29 AM »

Sorry, what does ELT actually stand for?  It reminds me of the beacon that was used a few times in that cartoon with the flying bear?  Smiley
Logged

Serving you with CYVR... =)
davolijj
Hero Member
*****
Offline Offline

Posts: 548


MMAC ARSR OKC


« Reply #6 on: April 22, 2006, 12:49:08 AM »

Quote from: Tomato
Sorry, what does ELT actually stand for?  It reminds me of the beacon that was used a few times in that cartoon with the flying bear?  Smiley


Electronic Locator Transmitter
Logged

Regards
JD
Lexxx
Jr. Member
**
Offline Offline

Posts: 66


WWW
« Reply #7 on: April 22, 2006, 09:31:44 AM »

I think it's actually Emergency Locator Transmitter
Logged
Jason
Hero Member
*****
Offline Offline

Posts: 1260


CFI/CFII


« Reply #8 on: April 22, 2006, 09:37:31 AM »

Quote from: Lexxx
I think it's actually Emergency Locator Transmitter


I believe that's what JD meant.
Logged
stealth71
Full Member
***
Offline Offline

Posts: 163



« Reply #9 on: April 22, 2006, 11:22:21 AM »

...and it's in my post above. wink
Logged

Chris Hart
Missoula International Airport (MSO) live feed.
http://www.liveatc.net/search/?icao=kmso

Ham Call: KE7MH
davolijj
Hero Member
*****
Offline Offline

Posts: 548


MMAC ARSR OKC


« Reply #10 on: April 22, 2006, 11:57:06 AM »

Quote from: Lexxx
I think it's actually Emergency Locator Transmitter


Wow, that's the last time I post something after a night shift....I must have had the auto-pilot on when I wrote that one. huh
Logged

Regards
JD
stealth71
Full Member
***
Offline Offline

Posts: 163



« Reply #11 on: April 22, 2006, 12:01:21 PM »

Well, in all fairness, it is electronic.  afro
Logged

Chris Hart
Missoula International Airport (MSO) live feed.
http://www.liveatc.net/search/?icao=kmso

Ham Call: KE7MH
Tomato
Sr. Member
****
Offline Offline

Posts: 277


« Reply #12 on: April 28, 2006, 11:51:54 PM »

lol... thank you, all!  Smiley
Logged

Serving you with CYVR... =)
Pages: [1] Go Up Print 
« previous next »
Jump to:  


Login with username, password and session length

Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2011, Simple Machines Valid XHTML 1.0! Valid CSS!