Understood, and I agree with your design logic. I think I may have been
first to articulate that concept around 2007-8 and to use "egg
insulator" in that context.
73, Jim K9YC
On 7/30/2020 2:07 PM, jimlux wrote:
I'm actually not so concerned about RFI -that's been dealt with by
design (and chokes at the source and victim) This question is more about
the cables winding up being a parasitic element of the antenna.
Think of the "breaking up guy wires with egg insulators" except that it
needs to carry signals, etc.
If my highest frequency of operation is 10m, then if I put a choke every
2-3 meters, then none of the "segments" between the chokes will be
resonant. (barring weird effects from self resonance across the choke).
An interesting experiment presents itself here..
If I have two antennas separated by 10 meters or so, and I measure the
S21 between them, and then I put a piece of wire of the right length
laying on the roof near them, I should be able to see it.
Then, if I put a choke in the wire, it should make it more or less
"invisible" at that frequency.
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