Any chance this was due to the Jindalee OTH radars? They would be a bit closer to your location. They switch frequencies periodically, which would explain the sudden drop in signal.
Whis they made equipment bigger, like in the old days. Have to use strong reading classes to see the small dial with print, etc. I been of Ham Radio for many years now, but have many naustalgic memories.
Best wishes to all hams and those you remember the old days.
yes, its true! even here in the Philippines we experience such noise early in the morning when band is really open and late at night. Making 40m communication down. As far as i can remember its started early 2005 until now, even band propagation is down its still there. Is there a way we can trace this irritating noise?
Interesting information to know how OTHR sounds. Thanks for share.
py2zx 1 year ago
Any chance this was due to the Jindalee OTH radars? They would be a bit closer to your location. They switch frequencies periodically, which would explain the sudden drop in signal.
tuxicle 3 years ago
Whis they made equipment bigger, like in the old days. Have to use strong reading classes to see the small dial with print, etc. I been of Ham Radio for many years now, but have many naustalgic memories.
Best wishes to all hams and those you remember the old days.
73's
DE W4ZJM
w4zjm 4 years ago
yes, its true! even here in the Philippines we experience such noise early in the morning when band is really open and late at night. Making 40m communication down. As far as i can remember its started early 2005 until now, even band propagation is down its still there. Is there a way we can trace this irritating noise?
revadan 4 years ago
And the PLC is coming we will enjoy !! (Only business today !
Thanks for this article and 73's
14ZK058 4 years ago
yep, still getting it most nights about 0930utc or so, right through till morning when the propergation drops out on 7mhz.
jashoon 5 years ago
qrm is bad :(
charlie0scar 5 years ago
Very interesting video.must be some kind of electrical interference.maybe a mig,or jig,or some sort of welder in the close by vicinity.
KevinRedMan2007 5 years ago
What's causing this interference or do you have any idea?
cecilpledge 5 years ago
Oh dear. Not good.
g3cwi 5 years ago