N4ZR:
> I understand that low-output RX antennas like flags, pennants, and
various loops need more common mode suppression than Beverages. I
wonder if two of those chokes, with a ground in between, 10-15 feet
from the matching transformer, would be a satisfactory design.
I doubt it. I believe the choke needs to be as close to
the feedpoint as possible. Carlos N4IS is very knowledgeable about
flags and uses 14 turns of RG-58 on a FT 244-77 toroid (or 14 turns
of RG-174 on FT 140-77) on his Waller Flags (two chokes).
http://www.n4is.com/wf/NEW_WF.html
73, Bill W4ZV
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