USAF EAM transmission

[freyhaus1]

...USAF EAM network transmission July 9 2024 at 0029 UTC on 11.274.95 Mhz USB
"Billboard, Billboard, this is Nightfall... authenticate Delta-Alpha-Lima"..."Nightfall, Nightfall, this is Billboard, I authenticate Delta-Alpha-Lima as India"...roger Billboard, you have entered the net at 0032 UTC, out"...

 

[TAC4]

Good catch 👍

 

[freyhaus1]

Good catch 👍

...Thanks!...i literally stumbled across it on my way to another freq....signal was booming in!

 

[W8WCA]

Not sure I have heard a EAM on 11275 !

 

[bearcatrp]

Used be allot on 11275 awhile back. Not to much lately though. There is a thread somewhere that lists all the EAM freqencies.

 

[W8WCA]

Strange nothing in old logs either. Nor in old UDFX logs
(Sure it's not 11175)?

 

[freyhaus1]

Strange nothing in old logs either. Nor in old UDFX logs
(Sure it's not 11175)?

...yes, 11175. type on my phone...sorry

 

[W8WCA]

Ahh that makes sense! Thanks for checking

 

[dlwtrunked]

...USAF EAM network transmission July 9 2024 at 0029 UTC on 11.274.95 Mhz USB
"Billboard, Billboard, this is Nightfall... authenticate Delta-Alpha-Lima"..."Nightfall, Nightfall, this is Billboard, I authenticate Delta-Alpha-Lima as India"...roger Billboard, you have entered the net at 0032 UTC, out"...

That is not an EAM transmission, I am not sure why you called it one. It is a simple entering into the net with authentication to prove who they are. That is not an EAM unless they also transmitted one. And other nets use this same procedure.

 

[freyhaus1]

That is not an EAM transmission, I am not sure why you called it one. It is a simple entering into the net with authentication to prove who they are. That is not an EAM unless they also transmitted one. And other nets use this same procedure.

...entering onto the net for an authentication is a valid transmission on that net...i did not say anything about about a message being transmitted...

 

[rf_patriot200]

Used be allot on 11275 awhile back. Not to much lately though. There is a thread somewhere that lists all the EAM freqencies.

4724, 6712, 6739, 8992, 11.175, 13.200, 15.016 khz. USB and there might be others I don't have.

 

[bearcatrp]

Did some googling.

HFGCS (High Frequency Global Communications System) - Signal Identification Wiki

HFGCS is a series of networks deployed by the United States Air Force to send encoded messages to deployed aircraft. This network is well known for it's coded EAM's (Emergency Action Messages) used for coordinating United States Strategic Nuclear Forces.

www.sigidwiki.com

 

[billisredeemed]

Aircraft 7310 calling any station for HF radio check from Robbins AFB on 11175

 

[dlwtrunked]

...entering onto the net for an authentication is a valid transmission on that net...i did not say anything about about a message being transmitted...

I thought that is what I said. In no place in your quote did you say you actually quote an EAM, you only posted about hearing an authentication for a net log in. If that is all your heard, then it is not an EAM transmission. I just wanted to be certain that you did not consider that an EAM.