HFU HF Underground

Loggings => Utility => Topic started by: jasmine on April 02, 2020, 0412 UTC

Title: US Air Force Interplane Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: jasmine on April 02, 2020, 0412 UTC
Around 04:08 "We're going to 10,000 feet right now, i'm going to hold on my shit." "i don't think anyone has weather, what are you looking at?"

"we're locked, we're on the other side of it right now."

there was a siren tone which sounded similar to one i heard before during a military exercise a few months ago: https://www.hfunderground.com/board/index.php?topic=59020.0

i did a search for 5757 khz and came across this post on a forum about Area 51 titled: "Thug flights on HF": https://www.dreamlandresort.com/forum/messages/44981.html

heard mention of going to a military UHF air frequency, 225.275 Mhz but they are still on HF for now.

it should be noted in that military exercise the callsigns were Thug-(number) but tonight the callsigns are "lock" and "flow' sounds like an ongoing op, still listening and recording all of this to post later.
EDIT: here is several hours of audio edited down to 16 minutes by removing the long stretches without comms: https://drive.google.com/file/d/1qgDSk5as3ZHxd1PbEl2OWRkL7kK6-f90/view?usp=sharing
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020
Post by: shadypyro on April 02, 2020, 0441 UTC
Good catch!
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020
Post by: jasmine on April 02, 2020, 1907 UTC
as i promised here is the audio of what i picked up last night. i edited a lot of the long pauses between transmissions out so the total running time is around 16 minutes but this took place over several hours of listening:

https://drive.google.com/file/d/1qgDSk5as3ZHxd1PbEl2OWRkL7kK6-f90/view?usp=sharing
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Rob. on April 02, 2020, 1944 UTC
I believe that the siren is a cockpit alert to notify the pilot of something that needs immediate action.

"Weather from 'KDTA'" is airport in Delta, UT
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Chad556 on April 02, 2020, 2210 UTC
The "siren" you hear is the pilot disengaging the autopilot.
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Chad556 on April 02, 2020, 2214 UTC
I also think they were referring to weather at KDCA, which is Reagan Intl. in Washington DC.
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Josh on April 02, 2020, 2231 UTC
One of the players mentions ceiling over Wendover, West Wendover, Nevada, so assume they did reference KDTA airport in Delta, UT and not Reagan. Towards the end seems they're working on ada defense measures such as flares and so on, to include navigational lighting or lack thereof. Wonder if these guys are working with a drone.
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Traveling Wave on April 03, 2020, 0530 UTC
Heard callsigns  "straight flush" and "95 euchre" used and starting approximately at 9:11 of recording heard "turn left and go high at Wildcat Mountain".
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: JCMaxwell on April 03, 2020, 0838 UTC
There is also an informative conversation ongoing at the UDXF group regarding this:

https://groups.io/g/UDXF/topic/72733101#92219 (https://groups.io/g/UDXF/topic/72733101#92219)
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Strange Beacons on April 03, 2020, 1916 UTC
Excellent catch! And thanks for providing the recording.
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: jasmine on April 03, 2020, 2136 UTC
thanks @StrangeBeacons. btw i used to listen to your SDR before and right after i bought my first because you had a magnetic loop antenna and i was looking getting one.
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Strange Beacons on April 03, 2020, 2316 UTC
thanks @StrangeBeacons. btw i used to listen to your SDR before and right after i bought my first because you had a magnetic loop antenna and i was looking getting one.

Cool. I swear by magnetic loops, especially because I live where outside antennas are forbidden. The W6LVP mag loop works well with my KiwiSDR (which has migrated from Seattle to Naples, Florida now).

Again, your latest recording is awesome. I tweeted out a link to it on my Twitter feed (https://twitter.com/StrangeBeacons/status/1246104361983492099) and it has been getting a lot of likes.  :D
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: jasmine on April 04, 2020, 0022 UTC
thanks for tweeting that out. the other reason i listened to your kiwiSDR was to hear what was possible to pick up from Seattle. how does your new listening environment compare to Seattle?
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Strange Beacons on April 04, 2020, 0106 UTC
thanks for tweeting that out. the other reason i listened to your kiwiSDR was to hear what was possible to pick up from Seattle. how does your new listening environment compare to Seattle?

The propagation here is absolutely amazing. I am able to pick up so many more signals than what I could with the same setup as I had in Seattle (lots more amateur radio operator traffic, plus signals out of the Caribbean and even Europe).
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Token on April 05, 2020, 1313 UTC
Nice jasmine, I have not reduced my receptions of this signal to audio yet, they are still in SDR format.  I started receiving this around 0320 UTC or so, and the last transmissions I heard were around 0650 UTC or so.

Sounds like aircraft over UTTR.

T!
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Token on April 05, 2020, 1318 UTC
Heard callsigns  "straight flush" and "95 euchre" used and starting approximately at 9:11 of recording heard "turn left and go high at Wildcat Mountain".

I think "Straight Flush" was not a callsign, I think it was a threat callout.  I also heard them mention "Roland".  And I also heard them say something about "unable to track us through the clouds".  Both Straight Flush and Roland are radar guided SAMs (Surface to Air Missile) systems.  If they were over a training range, say over UTTR, it is very possible there were simulated SAMs on the ground engaging them.

T!
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Josh on April 05, 2020, 1945 UTC
They were definitely talking about ada countermeasures.
Title: Re: Unidentified Military Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: Traveling Wave on April 06, 2020, 0445 UTC
Token you are on the mark,  the Russian 1S91, NATO designation  “Straight Flush” is a fire control and guidance radar....https://www.radartutorial.eu/19.kartei/06.missile/karte011.en.html

additional info....https://www.globalsecurity.org/military/world/russia/sa-6-components.htm

and...https://en.wikipedia.org/wiki/2K12_Kub

Wildcat Mt. is in the southern UTTR range as described on page 95 section 6.....https://books.google.com/books?id=1EXxAAAAMAAJ&pg=PA95&lpg=PA95&dq=southern+uttr+range+wildcat+and+kitty+cat+complex&source=bl&ots=iGe-_8JNiT&sig=ACfU3U1AidU_v3hHf0fPKpBsQLosgjCCSg&hl=en&sa=X&ved=2ahUKEwirlOfChtPoAhWehHIEHQzUD8EQ6AEwAXoECAsQMQ#v=onepage&q=southern%20uttr%20range%20wildcat%20and%20kitty%20cat%20complex&f=false
Title: Re: US Air Force Interplane Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: East Troy Don on April 18, 2020, 0215 UTC
Jasmine, from an ol' Signal Corps guy, thanks !
Title: Re: US Air Force Interplane Comms 5757 USB 04:01 UTC 2 April 2020 (now with audio)
Post by: jasmine on May 03, 2020, 0404 UTC
Jasmine, from an ol' Signal Corps guy, thanks !
you're welcome, i'm here to help. thank you for your service.