What's this?

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  • Question
  • Updated 3 years ago
  • (Edited)
This just started on 30M about 2 mins ago and goes from 10.114 thru 10.35. It undulates.
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Walt - KZ1F

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Posted 3 years ago

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James Whiteway

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Must be something local Walt. I am not seeing it here in North Texas.
james
WD5GWY
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Doug Hall

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It's quite strong in NC as of 2325 UTC. Peaking -90 dBm on my east-west 30m delta loop.

I don't know what it is, but I've seen it fairly frequently over the last year. Sometimes it's higher in the band, and sometimes (usually) it's up above 10.150 so it's not an issue.

73,
Doug K4DSP
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Walt - KZ1F

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Yep, same here Doug, -90dBm on peaks.
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Bill N5TU

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I was hearing it here in SW MO a short while ago. It was not strong, but it was certainly annoying.

73, Bill, N5TU
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Bill N5TU

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I just checked, and it's still here about S 5-6 on my R8 vertical. The pulsing is evident. Maybe it's a radar.

Dit-dit, Bill, N5TU
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Duane, AC5AA

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I posted two days ago about the same signal.  Most responses pointed me to some over-the-horizon radar sites on the web.  I couldn't make a match with any confidence, but it looks like at least one of them.  It's quite an obnoxious signal, for sure.  Obliterates 20 KHz of bandwidth in an already small band.  At least one of us should send it along to the FCC and see what their response is.
(Edited)
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Jay / NO5J

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Could be the Aliens again. 
73, Jay - NO5J 
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Martin Ewing AA6E

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S4 in CT at 0121Z.  It looks like a wide band digital modulation (flat spectrum) with spectral characteristics of ionospheric scintillation (aka selective fading). Some ~100 Hz pulse modulation (buzz), too.  We've discussed this before!  Who has a 30M beam? -- time for some RDF work.
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Walt

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Before you send the 'frequency police" to any military base demanding that they shut down the operations, please read Part 97.301 - section (J)  - and if you don't have a copy . . .

(j) Amateur stations transmitting in the 30m band must not cause harmful interference to, and must accept interference from, stations by other nations in the fixed service. The licensee
of the amateur station must make all necessary adjustments, including termination of
 transmissions, if harmful interference is caused

Seems clear to me..  Just have to suck it up, boys!  However, if you find there IS a US military base that is transmitting this, then just stroll up to the security perimeter and tell them they HAVE to turn it off.   Please tweet the video of your immediate detainment for the pleasure of others. . .


Cheers
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Walt - KZ1F

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I merely asked what it was. That's a boatloat of power to produce a signal that wide and that strong for that long.
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Duane, AC5AA

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Walt - you forgot the /.sarcasm off./ tag . . .   Thanks for the upbraiding.
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YV5WZ

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Mean This on 20 M?...

Thanks God its out of Radio Amateur Frequency....It looks awesome!