[MilCom] MIL: 11175.0 USB - ROYAL ARK; WINDFALL; CORNCRIB; and TEST PROD

[Jeff Haverlah]

0154z 28 Sep 25

UTC 27 Sep 25

[2256z+/- 26 Sep 25: ? AFFA2D E6B launched from TRAVIS northbound, the
turned west toward the coast over northern California and dropped off ADSB
mapping sites. Presumed TACAMO PAC/post 0000z TEST PROD]

A very quiet Saturday. The only message traffic was for the common TACAMO
PAC mission at 0144z. It was so silent the day was noticeable mostly for
its prominent test count sessions.

0017z: WINDFALL (presumed E6B; unknown otherwise) called ROYAL ARK (NCS).
0019z: WINDFALL called and raised ROYAL ARK. Lost the signal in the noise
floor.
[11175.0 UTwente SDR. Both very weak; assume CONUS.]

0129z: OFFUTT with test count.

0144z: CORNCRIB (presumed AFDAA4 MIGRATE/FAST TIME returning from RAMSTEIN
by was of stopover at PAX RIVER) called ROYAL ARK and raised MAINSIAL and
requested to exit the net.
0147z: CORNCRIB exited the net.
[AFDAA4 was approaching TINKER at the time of the connection.

0151z: WEST COAST with test count.
0152z: LAJES with test count.

========
0156z: ROYAL ARK; MIFG4V; P1.
MIFG4VNPVSOSDCRVPHEUDN2JWKPVRI
[Fed to TACAMO PAC.]

0220z: TEST PROD (presumed AFFA2D); MIFG4V; h+20/h+50 TACAMO PAC restoral
rebroadcast window.
0250z: TEST PROD; MIFG4V; restoral.
0320z: TEST PROD; MIFG4F; restoral.
0350z: TEST PROD; MIFG4F; restoral.
========

0532z: ANDREWS with test count.
0533z: SIGONELLA with test count.
0547z: WEST COAST with test count.
0556z: LAJES with test count.

Quiet.

1259z: WEST COAST with test count.
1259z: YAKOTA with test count.
1259z: OFFUTT with test count.
1301z: HICKAM with test count.
1315z: OFFUTT with test count.
1318z: WEST COAST with test count.
1329z: ANDERSON with test count.
1319z: DIEGO GARCIA with test count.

[1427z+/-: AECA82 E6B launched for TINKER northbound to the western Great
Lakes area, then west.]

1432z: CORNCRIB (suspected A3CA82) called MAINSAIL and raised ROYAL ARK to
enter the net.
1434z: CORNCRIB entered the net.

1721z: MAINSAIL with test count.
1722z: OFFUTT with test count.
1725z: HICKAM with test count.
1732z: WEST COAST with test count.
1733z: ANDERSON with test count.
1734z: LAJES with test count (UTwente SDR).
1734z: DIEGO GARCIA with test count (UTwente SDR).
1735z: OFFUTT with test count.

1825z: CORNCRIB called and raised MAINSAIL to exit the net but they were
unable to make solid contact (NCS cuts out).

1957z: BLUE 51 (KC135 AE047C; southeastern CONUS northeast bound) called
raised MAINSAIL and requested current message traffic. Told none and gone.

2105z: WEST COAST with test count.
2109z: MAINSAIL with test count.
2111z: OFFUTT with test count.
2111z: HICKAM with test count.
2124z: OFFUTT with test count.

2202z: TINKER MAINTENANCE called ANY STATION.
2203z: TINKER MAINTENANCE called ANY STATION and raised ROYAL ARK for an
exchange of signal checks, and gone.

[2302z: ? AF6BEE E6B launched from TRAVIS

2304z: TEST PROD (presumed AF6BEE) called and raised ROYAL ARC. Exchanged
signal checks but then went quiet.

======

UTC 28 Sep 25

Speaking of test counts...

The Saturday log makes obvious the mostly static time windows for the daily
test counts, at least over the recent past:

(=/- = 60 minutes; mostly on the "+' side of the hour).

0100z+/-
0500z+/- (not as noticeable on the SDRs in use).
1300z+/-
1700z+/-
2100z+/-
Plus often within 15 minutes prior to the turn of the UTC day at 0000z.

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