On 7/4/2018 8:09 AM, pa5mw@home.nl wrote:
Groundwave BC signals arrive at 0 degrees; you want to adjust FB at incoming
skywave (10< >50 degrees) signals instead
What reference you should use depends on your QTH and the first wave of
incoming (Europe?) QRM
I would like to respectfully disagree, at least for my QTH. What I
find is that my noise is dominated by local ground wave sources.
I want a null at the horizon=ground wave. I don't see background
noise vary much between day and night. Especially on vertically
polarized antennas.
Rick N6RK
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