[MilCom] MIL: 8992.0/11175.0 USB - LISTERINE; STUMP LEG; ANDY GUMP; AMBROSIA; INTERNAL and PLATINUM

Jeff Haverlah jehaverlah at gmail.com
Sat Mar 29 20:25:09 EDT 2025


 0024z 30 Mar 25

29 Mar 25 UTC

     11175.0 was active at 0027z and 0028z with LISTERINE broadcasting
their daily new UTC day communications test count.

     8992.0 was active at 0143z with AMBROSIA (probably pre 0000z PRODUCER
with his excellent audio) calling ANDY GUMP (NCS HFGCS), eventually raising
at 0145z and exiting the net at 0149z.

1109z: MYNA 74 (presumed E6B; AED56B) launched from PAX RIVER and flew to
the Gulf off the coast of Texas. After leaving the Gulf he returned to PAX
RIVER.

     8992.0 was active at 1339z with ANDY GUMP broadcasting the 30
character EAM HJ264P.

     8992.0 was active at 1400z, 1430z, 1500z, and 1530z with INTERNAL
(MYNA 74) broadcasting HJ264P at the h+00/h+30 Gulf/NCS/ABNCP restoral
rebroadcast windows. Not heard on 11175 or 15016 on SDRs that would
normally capture the Gulf activity.

     27.2 KHz (GULF) VLF FSK active at 1430z with HJ264P.

     8992.0 was active at 2121z with ANDY GUMP broadcasting the 30
character EAM 7ANQLK "FOR DAGON 70."

2145z: DAGON 70 (E6B; AE0412; BU 163920; aka MYNA 74 no longer under a
one-off HEX code) launched from PAX RIVER and flew to the Atlantic.

     11175.0 was active at 2151z with ANDY GUMP broadcasting the
30-character EAM HJRAYO.

     8992.0 was active at 2200z with ANDY GUMP broadcasting HJRAYO. Not
heard on Ohio Valley SDRs; weak on western SDRs; strong on California SDR.
Suggests an "echo" more than the systemwide restoral.

     11175.0 was active at 2203z with PLATINUM (strong on California SDR;
terrible, painful audio) calling STUMP LEG with no known response.
Repeated.  At 2206z PLATINUM called STUMP LEG, then went into his message
traffic script: Message of 3 groups follows; JVK FZW LNQ; time 06;
authentication QF; I say again; repeated in full; PLATINUM out.  Possible
TACAMO PAC; or at least western E6 based on signal strength.  Nothing seen
on ADSB mapping sites.

      17.8 KHz (LANT) VLF FSK active at 2236z with HJRAYO.

     8992.0 was active at 2310z and 2340z with INTERNAL (strong)
broadcasting HJRAYO at the h+10/h+40z TACAMO LANT restoral rebroadcast
windows. Nothing heard 0010z - DAKAN 70 is returning to the Atlantic coast.

In the same UTC day: Same aircraft; different front end callsigns one with
tactical HEX and one with static HEX codes; two bodies of water as cent/NCS
and TACAMO LANT; same backend callword. In the past year it's usually the
same aircraft; one callsign; one HEX code; same callword; two bodies of
water with no stop between bodies of water.

Jeff
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Jeff Haverlah               Coastal Texas
     Airspy HF+ Discovery   W6LVP loop  Various web SDRs
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