ml wrote:
I wonder exactly what happens when you run ladder line say next to a 1''
metal pipe spaced about 1" apprt

is it just that the ohms that change would it be a bit or does it
swing waaaay off??


tnx
Hi ML

Keep the Ladder Line 3X it's width away from the metal for 300 ohm twin
lead that would be about 2 " For 450 ohm Ladder line it would be about
5 " a twist in the portion of the line near the metal object about every
18" or so will also help. Remeber though that the portion of the line
near the metal object must not be allowed to sway in the the wind if it
does it will cause the impedence to very sometimes widly as the line
moves closer then further away..

I've found the above to be very accurate and have not had problems in
many installations over the years.

73 Dave