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Author Topic: UNID 6924.5 AM 0120 01/06/2016  (Read 1920 times)

Offline R4002

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UNID 6924.5 AM 0120 01/06/2016
« on: January 06, 2016, 0127 UTC »
Intermittent audio, mixing with the pescadores, but there is a carrier with this signal when its there.  Carrier on and off randomly.  When its working, hearing an OM talking with music in the background.  Now (0127 UTC) it sounds like two stations are there on AM (plus the pescadores on 6925.0 kHz
LSB)

Signal came back on for roughly 5 seconds at 0129:55, dropped off for around 30 seconds, and is now back at 0130:45.  There's either two stations going at once or somebody is feeding audio from two sources into the same transmitter.  Very strange.  

Back at 0132:25, with distorted audio.  Gone again right before 0133:00, then back up for a few seconds....then gone again?  I don't think this is a fading issue, maybe a transmitter problem?  Or somebody is messing around/testing/tuning up?  

Back at 0215, same distorted audio, and what sounds like two different stations at once (although it could just be the pescadores on 6925 LSB mixing in).  Difficult to tell since the signal strength is strong enough to actually understand what is said for only a few seconds at a time and then it
disappears again.

0217: "World War II started..." "the various..."
0221: Spanish language heard (in AM mode this time).  Lots of OTH radar QRM in addition to the LSB voice traffic.  
0222: Severe OTHR QRM
0223: Hearing an OM and a YL talking at the same time.  Distorted/overdriven audio. 
0224: Pescadores seem to have quieted down.  The distorted AM station is still there though, way down in the noise.
0225: Spanish language (in AM) - then getting blasted by OTHR again

Frequency is pretty messy right now.
« Last Edit: January 06, 2016, 0226 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

Offline ChrisSmolinski

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Re: UNID 6924.5 AM 0120 01/06/2016
« Reply #1 on: January 06, 2016, 1403 UTC »
Nothing heard here, nor your earlier logging on 6926.9 kHz. Was this with an online SDR / web radio?
Chris Smolinski
Westminster, MD
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Offline R4002

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Re: UNID 6924.5 AM 0120 01/06/2016
« Reply #2 on: January 06, 2016, 1515 UTC »
Both were with the K2SDR WebSDR.  Since it seems like that was the only receiver that got these transmissions, it may have been an issue with that particular SDR
U.S. East Coast, various HF/VHF/UHF radios/transceivers/scanners/receivers - land mobile system operator - focus on VHF/UHF and 11m

Offline James Brownyard

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Re: UNID 6924.5 AM 0120 01/06/2016
« Reply #3 on: January 06, 2016, 1605 UTC »
I find many of these online sdr's stateside do not have good antennas. The k2sdr seems to be one of the better ones, but I hear way more stuff on my old cigarette burned DX-398 and an 80 M Inverted V then I do on some nearby online sdr's.

Offline ChrisSmolinski

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Re: UNID 6924.5 AM 0120 01/06/2016
« Reply #4 on: January 06, 2016, 1620 UTC »
Yes, it sounds like some sort of an image or mixing product. I'm going to move these threads to other, if no one has any objections.
Chris Smolinski
Westminster, MD
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netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree