On Feb 1, 9:04*am, dave wrote:
Do you run with RF gain all the way up? I don't. I use a lot of AF gain
and turn the AGC off and ride the RF gain (use that for a volume
control). That gets the noise way down (until somebody flips an
incandescent light switch and the "pop" goes through my brain).

I did my deep urban DXing on a 2010 (on a 30' umbilical) and an R390-A
(120' random wire connected directly to back of radio). Biggest power
lines overhead at right angle to random wire. The R390-A's what got me
hooked on pro grade receivers.

It depends on the situation. I only rarely turn off the AGC, but I do
ride the RF Gain quite a bit, partly because of this effect you
describe and partly because it really helps the S-AM work properly
(People complain about the Icom R-75 S-AM, even with Kiwa mods, but I
can eliminate virtually all selective fading with the RF Gain set
properly). However, I will give the method you describe a shot.

How did those powerlines affect your reception?