In a message dated 4/26/2007 6:16:24 AM Eastern Daylight Time,
cyo3fff@yahoo.com writes:
Hello all,
Because I don't have a "beverage farm", I'm wondering if someone of you try
to find the direction and place from where the QRN is coming at a certain
time?!
I'm asking this because the QRN is a big issue on 160m and maybe we can do
something to limit its action by using certain nulling antennas. Also I'm
interested to findout how a thunder will propagate on 160m band. What is its
range?
If you have some information in this way I'll appreciate sharing it with me.
Another question is about the cosmic noise. I don't know what is its
amplitude at this wave length.
Thanks.
73 de YO3FFF
Cristi
Cristi - a simple antenna to try to work around the QRN would be the 4
direction K9AY loop. You can also build a rotatable flag. But don't forget
to
practice your brain DSP and often the DX can come from the same direction as
the QRN.
Re Lightning propagation I think that depends on conditions the same way any
signal does. I can often judge the overall quality of the band on 160
depending on whether I can hear distant lightning QRN in the winter here in New
Jersey. If I can hear it - the band is open AND quiet locally. If the QRN is
S9 plus and constant, as it can be in the summer here, it's time to forget
about radio and make sure your lightning protection is implemented! 73 Pete
W2PM
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