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Author Topic: UNID 4724 KHZ  (Read 1872 times)

Offline East Troy Don

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UNID 4724 KHZ
« on: February 14, 2021, 1649 UTC »
4724 KHZ in USB @ 16:31 UTC (10:31 CST Local)....

... Z H N N N N X 5 G A 6 7 E Q E P P G X Y6 G O.....

16:32 " Correction. (indecipherable)"

....G O 7 3 3 3 N 6  J 7 O D T T Y....

16:34. "Correction. 116. India .."

16:35    " I say again..."   Repeating previous transmission above

16:38:  "164 characters..." and sign off with "DEDICATE, OUT"

16:39. Repeats sign-off.  "DEDICATE, OUT". 

Primary: R75 W/WV-601 passive loop masted @ 20'  Secondary: Yaesu  FRG 7700 W/MLA-30+ indoors. Tertiary: Grundig  750. Tecsun PL-990X, Tecsun PL-880 . Malahit DSP SDR V3,  . : Also, Qdosen DX-286, 1940 Mantola am/sw tube. CountyComm GP-5/SSB hand held, Tecsun PL-380 ,et al.  QTH: FONTANA, WI  USA.  Sea Level: + 990' .  75 miles (but not far enough) NW of Chicago

Offline autovon

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Re: UNID 4724 KHZ
« Reply #1 on: February 14, 2021, 1658 UTC »
It's the USAF HFGCS
Default RX location is Wisconsin using various wire antennas. Other RX will be noted.

Offline Token

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Re: UNID 4724 KHZ
« Reply #2 on: February 15, 2021, 0041 UTC »
I don't normally spend a lot of time monitoring the HF-GCS, and I was not specifically monitoring it today but I was SDR recording a frequency near there, so I captured a bit of this traffic.  It took them at least 3 tries to get that message out relatively error free.  And I think they ended up sending it at least 5 times, not counting the normal duplicate "I say again"s.  1608z, 1619z, 1630z, 1700z, 1730z.

By the way, East Troy Don, your 1632z indecipherable correction was "Correction, item 82, Golf".

T!
T!
Mojave Desert, California USA

Offline East Troy Don

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Re: UNID 4724 KHZ
« Reply #3 on: February 15, 2021, 0223 UTC »
Thanks
Primary: R75 W/WV-601 passive loop masted @ 20'  Secondary: Yaesu  FRG 7700 W/MLA-30+ indoors. Tertiary: Grundig  750. Tecsun PL-990X, Tecsun PL-880 . Malahit DSP SDR V3,  . : Also, Qdosen DX-286, 1940 Mantola am/sw tube. CountyComm GP-5/SSB hand held, Tecsun PL-380 ,et al.  QTH: FONTANA, WI  USA.  Sea Level: + 990' .  75 miles (but not far enough) NW of Chicago

 

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