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Author Topic: Numbers station  (Read 1557 times)

Offline East Troy Don

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Numbers station
« on: January 03, 2021, 1704 UTC »
Weak but decipherable on the (unusual) 11540 KHZ  frequency @ 17:02 UTC.

SINPO: 2-2-3-3-2
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Primary: Yaesu FRG-7700  Secondary: ICOM R75 Tertiary: Grundig  750. Tecsun PL-990X, Tecsun PL-880 . Malahit DSP SDR V3,  Alpha Delta  SWL Sloper antenna. : Also, 1940 Mantola am/sw tube. CountyComm GP-5/SSB hand held, Tecsun PL-380 ,et al.  QTH: EAST TROY WI  USA.  Sea Level: + 320 meters .  75 miles (but not far enough) NNW of Chicago

Offline Token

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Re: Numbers station
« Reply #1 on: January 03, 2021, 1752 UTC »
You might want to include a description of the numbers station, so we can tell which one you mean.

Right now (1745 UTC, the same day) I have the Cuban station HM01 (alternating Spanish numbers and digital data) on 11530 kHz in AM mode. But nothing unusual about that, it is one of its scheduled frequencies and times.  HM01 carrier turned off at 1750:55 UTC and it will be going to 11635 kHz for its next transmission, starting at about 1800 UTC (normally starts several minutes early).

T!
« Last Edit: January 03, 2021, 1755 UTC by Token »
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T!
Mojave Desert, California USA

Offline East Troy Don

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Re: Numbers station
« Reply #2 on: January 05, 2021, 1655 UTC »
It was the Cuban station and it was the 11540 khz that caught my attention. I bracketed 10khz either side of 11540 and the signal went from weaker to nothing.  Ditto USB. 
Same degree of signal capture with either the FRG7700 or R75.
I just wrote it off as, "Well, you know,  its Cuba...."
 ;D
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Primary: Yaesu FRG-7700  Secondary: ICOM R75 Tertiary: Grundig  750. Tecsun PL-990X, Tecsun PL-880 . Malahit DSP SDR V3,  Alpha Delta  SWL Sloper antenna. : Also, 1940 Mantola am/sw tube. CountyComm GP-5/SSB hand held, Tecsun PL-380 ,et al.  QTH: EAST TROY WI  USA.  Sea Level: + 320 meters .  75 miles (but not far enough) NNW of Chicago
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