Activators should be aware that there is a wide band multitone transmission that uses 7032 KHz about once every two months. The transmission spreads from 7030 to 7033 KHz and makes SOTA activations (especially QRP) very difficult to read across most of Europe.
This transmission normally lasts for 3 days before QSY’ing and commenced this time on the morning of the 25th March, so it is due to move shortly.
Meantime it would be appreciated if CW activators could either use alternate bands or alert/spot outside of 7030-7033 KHz
In the last decade Russia used to call it “ultra wideband encoded data transmission” - not sure where the data was being received except by us as QRM 8-( Maybe re-branded for this decade!
In reply to M0LEP:
Hello Rick, unfortunately the person who posted the video did not use the spectrum analyser on the FlexRadio with PowerSDR. You can ‘capture’ wave forms of QRM - bit like a fingerprint. I have not heard it on the f. you mention. There is nothing we can do about it is the bottom line I think 8(
In reply to M6RGF:
I am fine thank you Russ. I was going to go for a 5 mile hike through High Hurstwood but the weather is not fine - sleet and wind - bad combination for me. So will go this afternoon if it eases.
Mike
G6TUH
There is nothing we can do about it is the bottom line I think 8(
Not a lot except perhaps log it, maybe make a recording, and if someone’s looking for evidence, send it to them. One I heard was wider than my rig’s receive bandwidth, and I don’t have a suitable SDR so couldn’t see it in its entirety. I’m assuming it wasn’t an amateur because the signal was so wide, and even on the main bands that’d be unusual, never mind on 30 metres.
Mostly it’s just frustrating; there’s an activator on that frequency, but all you can hear is end-stopped noise. Nowt else to do but go chase someone else somewhere else on the bands…
There is nothing we can do about it is the bottom line I think 8(
Not a lot except perhaps log it, maybe make a recording, and if
someone’s looking for evidence, send it to them.
That’s exactly what we can do. DL1DVE has already mentioned the right address to send intruder logs to: the IARU Region 1 Monitoring System http://www.iarums-r1.org/. These guys inform foreign telecommunication offices and try to make them stop intruders.
Hello Michael, I sent logs and .wav files a year or so ago; twice. I received a brief not saying thanks and that they were aware. It was a bit demotivating for me at the time.
