Noting the interest re qrm 160.I had a session with this noise a few months ago
for a week or so.It has reappeared almost nightly for the past 3 weeks
generally S3 or 4 at about 11.00Z gradually building to S7 and stays there all
night fading away at sunrise.
My guess is it is there all the time at present,signal strength dependent on
propogation conditions as some nights it is hardly detectable.I liken the noise
to an idling diesel engine.
It quite often renders the band unusable for DX except for the stronger signals.
VK has been suffering very bad pulse QRM on 80 meters and the lower part of 40
meters for some months now.I don't know if there is a link with this and our
present 160 problem.
If we have it S7 here, I feel sorry for hams closer to the source.
Let's hope it is only temporary.
73s Bob VK3ZL..
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