A 100 foot long receive loop makes no sense. Receive loops
need to be less than 1/3 wavelength at the highest frequency,
which would limit you to 3 MHz. You should probably be looking
at a Pixel or Wellbrook loop, 3 foot diameter. You should
be able to deploy that even in an HOA.
Rick N6RK
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On 2/14/2014 10:12 AM, hmholden69@... wrote:
I live in an area that has HOA rules against outdoor sw antennas. I
think my best bet is a stealth loop antenna laid directly on the roof.
It would be trapezoidal in shape and about 100 feet long. I want to feed
the receiver with small coax {RG 174}. I want to make a balun on a
ferrite rod or air core type. I have some torrid cores but go crazy
trying to wind them. Any ideas on the ratio I need {4:!, 9:1, etc} and a
place to get plans for winding.This will be a receive only antenna.
Harry
