[MilCom] MIL: 11175.0 USB - HOT HOUSE; TREEFROG; ALLOWANCE; INVICTIVE; and RENTACAR

Jeff Haverlah jehaverlah at gmail.com
Sun Mar 15 21:25:24 EDT 2026


0123z  16 Mar 26

UTC 15 Mar 26

Beginning at 1736z a 6 hour NCS and TACAMO PAC window vs a more common 2
hour window; includes 6 VLF FSK MSK broadcasts from TACAMO PAC and 1 VLF
broadcast from the Gulf E6B; plus NCS standing by for traffic sessions
through end of the 6 hour session.

0244z: HOT HOUSE (NCS); 888800.
8888..("disregard" spoken in background); Disregard.

[2 hour+/- 35-character traffic session.]
========
0048z: HOT HOUSE; LEHHRF; 35 characters; P2.
LEHHRFKWP6HCRYUFUJFLEDICHCDOLXTZAGO

0514z: HOT HOUSE; LEMMJN; 35 characters; P2.
LEMMJNSRDFSWP3CHYGGLDKPGYVWN2EXPKRL [Low confidence.]

0535z: ANDREWS with test count; 4724.0 UTwente SDR.
0536z: SIGONELLA with test count; 4724.0 UTwente SDR.

0636z: HOT HOUSE; LEA3PY; 35 characters; P2.
LEA3PYICNEOGFPHVJ4IJDLOEFWYH5SPTUXT
========

Quiet.

[1456z: AF3F84 E6B launched from TINKER and flew westbound; no backend
callword heard after launch.]

1607z: HOT HOUSE (weak on east coast SDR) worked TREEFROG (presumed E6B;
unheard on the SDR) to check him into the net; and then went silent.

1612z: TREEFROG (strong levels on California SDR; not seen on ADSB mapping
sites; presumed Due Regard out of TRAVIS) worked HOT HOUSE (unheard on east
and west coast SDRs) to enter the net.
1614z: TREEFROG entered the net.
[TREEFROG was logged on 8992.0; either there or simulcasting.]

1731z: ALLOWANCE (presumed E6B; not seen on ADSB mapping sites) called
MAINSAIL.
1734z: ALLOWANCE called MAINSAIL.
1735z: ALLOWANCE called MAINSAIL.

--------
[NCS activity]
&&&&&&&&

[TACAMO/ABNCP activity.]
========
1736z: HOT HOUSE; 376MK7; P1.
376MK7SCFLZYCK6A6JZ7TS2YEWLXGZ
[Fed to TACAMO PAC.]

[1750z+/-: 22.7 KHz (PAC) VLF FSK MSK broadcasts indicated on the W1VD VLF
Grabber website.]

1750z: TREEFROG; 376MK7; h+20/h+50 TACAMO PAC restoral rebroadcast window.

[Standing by for traffic activity begins.]
1800z: HOT HOUSE Standing by for traffic.

1820z: TREEFROG; 376MK7; PAC restoral.

********
1830z: HOT HOUSE; ES4HUP; 27 characters; P4.
ES4HUPUH2HGYVNGR3GBCH3GVWXL

1832z: HOT HOUSE Standing by for traffic.

[1840z+/-: AF63F5 E6B launched from TINKER to the Gulf; the return to the
coast in a northeast direction.]

1840z: HOT HOUSE; ESDEDS; 31 characters; P4.
ESDEDSGFWV7J73L6OYI6WIWU5VZORSN
********

1850z: TREEFROG; 376MK7; PAC restoral.

1900z: HOT HOUSE Standing by for traffic.

1920z: TREEFROG; 376MK7; PAC restoral.

1930z: HOT HOUSE Standing by for traffic.

[1930+/-: 22.7 KHz VLF FSK MSK broadcast.]

1949z: HOT HOUSE; 37FJXP; P1.
37FJXPWM3TXXIJHMJJCXC2GOJS2GZF
[Fed to TACAMO PAC.]

[1954z+/-: AE040F static hex E6B launched from PAX RIVER and flew to the
southeastern CONUS.]

[2000z+/-: 22.7 KHz VLF FSK MSK broadcast.]

2000z: HOT HOUSE Standing by for traffic.

2020z: TREEFROG; 37FJXP; PAC restoral.

2030z: HOT HOUSE Standing by for traffic.

2050z: HOT HOUSE; 372P7H; P1; dualling with TREEFROG.
372P7HEFXMSX66SB462IZEKVZSP3MO
[Fed to the Gulf E6B.]

2050z: TREEFROG; 37FJXP; PAC restoral.

2057z: HOT HOUSE; 3727GG; P1.
3727GGNFY6UD4KR6OJ233IWRFIRSGL
[Fed to TACAMO PAC.]

[2100z+/-: 27.2 (Gulf) KHz VLF FSK MSK broadcast.]

2100z: INVICTIVE (presumed AF63F5); 372P7H; Gulf restoral.

2120z: TREEFROG; 3727GG; 37FJXP; PAC restoral.

[2130z+/-: 22.7 VLF FSK MSK broadcast.]

2130z: INVICTIVE; 372P7H; Gulf restoral.

2150z: TREEFROG; 3727GG; 37FJXP; PAC restoral.

2152z: HOT HOUSE; 37QVXW; P1; dualling with TREEFROG.
37QVXWSV6OQQUNBEJZYHBHKVRTX2ZY
[Fed to TACAMO PAC and eventually to the NCS at 2331z.]

2155z: ANDREWS with test count.

[2156z+/-: 22.7 KHz VLF FSK MSK broadcast.]

2200z: INVICTIVE; 372P7H; Gulf restoral.

2220z: TREEFROG; 37QVXW; 3727GG; PAC restoral.

2240z: ALLOWANCE called and raised MAINSAIL but did not respond.

2243z: RENTACAR (presumed E6B; not seen on ADSB mapping sites) worked
MAINSAIL to enter the net.
2247z: RENTACAR entered the net.

2250z: TREEFROG; 37QVXW; 3727GG; PAC restoral.
========

[NCS restoral activity begins.]
2253z: HOT HOUSE; 37STQP; P1.
37STQP2BBE4QGFB6SWB6QSLVGMFDBV

2256z: ALLOWANCE (presumed E6B; not seen on ADSB mapping sites) working
MAINSAIL to enter the net.
2257z: ALLOWANCE entered the net.

2300z: HOT HOUSE; 37STQP; NCS restoral.

2302z: HOT HOUSE Standing by for traffic.

2304z: HOT HOUSE; 3746J3; P1.
3746J3QYC4AKQBA2FEWBPZTPDJBGMY

2331z: HOT HOUSE; 3746J3; 37QVXW (PAC traffic as well, so still active in
their message traffic queue); NCS restoral.

2335z: HOT HOUSE Standing by for traffic.
&&&&&&&&
[End of the 6 hour session.]
--------

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