[Elecraft] Clamp on RF meter

[J F]

Steve,

This might help you find out if RF is flowing on your
coax sheild, someone on the reflector (it eludes me at
the moment who...) has a similiar device he
homebrewed.

 http://www.ifwtech.co.uk/g3sek/clip-on/clip-on.htm

You might take a look at the W8JI site (www.w8ji.com)
for some thoughts on the topic.

I know it was pretty evident on 160 for me, with 100W
and RX noise. A current choke and/or isolation
transformer close to the antenna and before entering
the house will virtually eliminate common mode
problems.

LB Cebik W4RNL gave a presentation on the subject at a
recent ETDXA meeting see:
http://www.cebik.com/trans/cmp.html

73,
Julius
n2wn