On Feb 24, 12:51*am, Dave wrote:
On Feb 23, 11:13*pm, TOF wrote:

I have a (home built) 40 m ground plane with the base elevated about 8
feet and with 7 elevated sloping radials. *The 50 Ohm feedline drops
straight down the 8 feet and then runs on the surface of the ground.

Would *a choke balun at the feed point be advisable?

W0BF

it wouldn't hurt, but unless you have problems with rf on the feedline
getting back into the shack i wouldn't bother.

p.s. it might also help if you are picking up local noise that is
being conducted on the shield.