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Old September 10th 07, 02:16 AM posted to rec.radio.amateur.antenna
mike mike is offline
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First recorded activity by RadioBanter: Jan 2007
Posts: 7
Default Yagi in Proximity of Vertical/SNR problem..answers???

I am stump with this problem and I hope someone has a solution. I have
a 4 Element Yagi and a vertical ground plane up each at 50' The ground
plane is 40' away from the yagi to the North . The yagi is tuned
correctly and properly built. I get this whitenoise at S-5 and can
almost kill it with my ANC-4..(Yagi has both Vert/Horizonal with same
SNR Problem) could the Ground plane due to its proximity create the
white noise. in conjunction with the beam? I recall this problem a few
years back with a Vertical on my house and the ground plane that is
the same one 40' away except the white noise was only S-1...It looks
very obvious there is some interaction. I just can not figure out what
it is. Suggestions from those that may know. I will be lowering the
Ground Plane that is 40' away from the house to see if that helps. All
antennas are tuned for 10 meters...I am so confused.. Thanks to all
in advance Mike