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Jamming on PSK
14 January 2013 | by I was on 15m PSK31 and in the process of calling PY3ED when a vicious jamming signal started up.
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| Jamming on 21MHz |
As you can see, it did a good job of obliterating all signals. It seemed to be centered around 21.070MHz and extended for 50kHz or so in either direction.
I don’t know how long it stayed on for because it was lunch time so I went to have something to eat. When I came back the interfering signal had gone.
Was it something local to me or has anyone else seen it?
4 Responses to “Jamming on PSK”
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This might sound weird, but could it have been from the Sun? Seems to me over the years that I read about a burst in the 15 meter band range. I will do some more research…
73…hope you are doing better and glad you are still blogging
Harry k7zov
No it’s QRM and I got it also. 21.130 also seems to be to be a place to jam or hold open until sked time. TOO BAD. But who ever it is must have on hell of a set of finals.
I myself was on 15 meters on PSK and saw and heard the same thing this morning around 14:15 utc every signal was completely blocked out. I only stayed around a short time before shutting down my equipment was strange I am in Florida.
I’d bet it’s OTH radar.