I have similar QRN results as KQ2M using my homebrew OWA beams. At first I
thought it was related to the OWA design but according to everything that I
have read by W8JI and others, it is not. In my case during rain static
events, no antenna is quiet however lower is definitely better. I use
MicroHAM micro STACK switches and with a simple button push I can disable
the noisy antenna on RX but it is a pain to operate that way. I believe that
there is a way to automate switching so it transmits into all antennas and
receives using just a lower one but I have not attempted this.
John KK9A - W4AAA
Bob Shohet, KQ2M wrote:
I have had difference experiences than Jim. When the rain static is
horrible (at the level where is sounds like the drumming section in a large
marching band ;-) the the top yagi is always the loudest in Ierms of
hearing rain static, it is NOT the only one that gets it and that has been
true whether it has been 10, 15 or 20 meters. What happens at my qth is
that the top is the loudest by far, the 2nd one down is moderately loud, the
3rd one down has some static and the 4th one down (bottom) is quiet.
With lower levels of rain static, the top is still the loudest but the 2nd
and 3rd one down may not experience any.
I use 5L Hygain HG205CA, 155CA and 105CA's.
73
Bob, KQ2M
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