[Elecraft] open wire feeders

[John Harper]

I don't have a problem with it at all, even with a kw. RG213 goes 8 feet
to a window feed-thru, then to a balun, then 75 feet of 450-ohm line.

The only "problem" I had was when I installed a second antenna (a 40m
vertical dipole) and fed it with ladder line as well. Then tuning settings
on my first antenna changes by quite a bit on some bands so I ended up
feeding that 2nd antenna with RG213 to use as an antenna on that band
only. The origianl reason for the ladder line was to use it 10-40.

I think interaction between plural ladder line fed antennas is more of an
issue than RF in the shack.

John Harper
http://www.ae5x.com/blog