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Author Topic: UNID 8000 kHz 1434 UTC 10 Jan 2019 signal  (Read 278 times)

Offline IQ_imbalance

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UNID 8000 kHz 1434 UTC 10 Jan 2019 signal
« on: January 11, 2019, 0202 UTC »
Strong carrier (-85 dBm at my location currently); about 3Hz wide; might be LSB?.  Has been on since at least 1434 UTC 10 Jan.  TDoA during the day (~2000 UTC) suggests possibly two transmitters...one east coast, one midwest. 


« Last Edit: January 11, 2019, 2018 UTC by IQ_imbalance »
LOG/NE-SW unterminated BOG
AFEDRI SDR-Net
Central MD

Offline CaptnKliegle

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Re: UNID 8000kHz persistent signal
« Reply #1 on: January 11, 2019, 0338 UTC »
03:30 UTC 1-11-2019  -35dBm on a 51' vertical and -60dBm on a 124' EFW at +100' AGL.

Appears to be some modulation? See the tick marks:


Seacoast of NH  RXR's =6 X SDR-iq's, 2 x SDRPlays, and an AirspyHF+. TXR's = 2 X TS-590S,  ANAN100D, 2 x IC-7300's. Antennas = Resonant wire dipoles, 120' end fed wires, or SteppIR 3 ele beam @ 70' fixed NE/SW directions.
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Offline CaptnKliegle

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Re: UNID 8000kHz persistent signal
« Reply #2 on: January 11, 2019, 0339 UTC »
Image didn't get posted...

https://imgur.com/ipcJZEq
Seacoast of NH  RXR's =6 X SDR-iq's, 2 x SDRPlays, and an AirspyHF+. TXR's = 2 X TS-590S,  ANAN100D, 2 x IC-7300's. Antennas = Resonant wire dipoles, 120' end fed wires, or SteppIR 3 ele beam @ 70' fixed NE/SW directions.
Host of numerous SDR Console Ver 3 servers!

Offline Boriken

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Re: UNID 8000kHz persistent signal
« Reply #3 on: January 11, 2019, 0340 UTC »
Strong here in western NC. Can even hear it on a single MPF102 regen & 25ft of wire.
Scott / WB4YZA
Western North Carolina
Mosty homebrew, 100% analog

Offline Traveling Wave

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Re: UNID 8000kHz persistent signal
« Reply #4 on: January 11, 2019, 0525 UTC »
0522 UTC - Carrier signal is S7 in WNY, and peaking to S9.
Location: Western New York ( Niagara Frontier)
Radio :TS480 with RTL-SDR pan-adapter, HDSDR, Omni-Rig Control,Zenith T/O R600
Antenna: 40m dipole, 20-17-15 meter fan dipole

Offline ChrisSmolinski

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Re: UNID 8000kHz persistent signal
« Reply #5 on: January 11, 2019, 1102 UTC »
Still there at 1102 UTC 11 Jan 2019.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
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Offline IQ_imbalance

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Re: UNID 8000kHz persistent signal
« Reply #6 on: January 11, 2019, 1723 UTC »
Back on for ~4 min 1719-1723 UTC 11 Jan and intermittently for a few minutes after:  TDoA suggests not on the east coast this time:
« Last Edit: January 11, 2019, 1744 UTC by IQ_imbalance »
LOG/NE-SW unterminated BOG
AFEDRI SDR-Net
Central MD

Offline Beerus Maximus

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Re: UNID 8000kHz persistent signal
« Reply #7 on: January 11, 2019, 1726 UTC »
Active, on and off here at 1725 UTC on Jan 11. Some pulsing/fluttering was noted on one of the "key downs" and then the signal was stronger. Almost like maybe an antenna tuner of some kind was quickly trying to match an antenna. Very strong here, S9+15.
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Offline Josh

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Re: UNID 8000kHz persistent signal
« Reply #8 on: January 11, 2019, 1911 UTC »
Copied here too @ 1910Z, S5/8.
Conveniently located near Vincennes Indiana.