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Author Topic: UNID 6870.1 AM 0000 UTC 01/06/2016  (Read 1453 times)

Offline R4002

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UNID 6870.1 AM 0000 UTC 01/06/2016
« on: January 06, 2016, 0001 UTC »
I'm seeing a carrier at 6870.1 kHz or thereabouts.  I can't hear any audio in AM mode but in USB mode I hear what sounds like it could be music at the noise floor.  There's lots of static crashes, hopefully somebody else can hear it better than I can (I'm listening on the K2SDR WebSDR remote).  There's another continuous signal on 6869.7 kHz that creates a heterodyne when tuning 6870.1 in AM mode.  Add the carrier on 6872 and its a mess.  There's something there though.

0003 - CW heard, another carrier pops up on 6872 kHz
0005 - 6872 carrier gone, there are several groups of pescadores around this frequency (namely 6868 kHz in LSB mode) and they're not helping either.  Maybe its just my imagination combined with the various signals mixing together  ???
« Last Edit: January 06, 2016, 0010 UTC by R4002 »
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Offline blw

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Re: UNID 6870.1 AM 0000 UTC 01/06/2016
« Reply #1 on: January 06, 2016, 0017 UTC »
Weak signal, but music clearly heard and an announcer. Narrow signal into Alabama. Thanks for the show.
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Offline Kilokat7

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Re: UNID 6870.1 AM 0000 UTC 01/06/2016
« Reply #2 on: January 06, 2016, 0215 UTC »
Lots of "Radio Habana Cuba" IDs and it's parallel to 6060, so it's probably a mixing product or spur of some RHC frequency.
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Offline R4002

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Re: UNID 6870.1 AM 0000 UTC 01/06/2016
« Reply #3 on: January 06, 2016, 0237 UTC »
RHC is producing all sorts of spurs this evening. See this thread:  http://www.hfunderground.com/board/index.php/topic,25568.0.html

When the signal comes up, I can see/hear identical signals on several frequencies, 6924.5, 6890.5, 6894.5, 6885, 6840.5, etc.  It's all over the place.  The signal strength goes from nearly regular broadcast quality to way down in the noise.  Sometimes its distorted and sounds like its mixing with another station, other times not.

Somebody needs to take a look at their transmitter!   :o

EDIT:

Looks like there's spurs showing up inside the 40-meter ham band as well.  7000.5 kHz AM and 7004.5 kHz AM.  Not continuous, but short bursts of high power wide AM signals are going to get noticed in the CW section of 40 meters.

Unless the K2SDR is just being overwhelmed and generating the spurs on its own...
« Last Edit: January 06, 2016, 0252 UTC by R4002 »
U.S. East Coast, various HF/VHF/UHF radios/transceivers/scanners/receivers - land mobile system operator - focus on VHF/UHF and 11m