[Elecraft] Re: OT: How do you measure common mode current?

[Ken Rice]

Hi Steve,

>Question: How do you go about detecting common mode current on the outside
>braid of your co-axial cable and then measuring or quantifying the
amount thereof?

You need a shield current meter.

They're easy enough to build:

   http://w8ji.com/building_a_current_meter.htm

And cheap enough to buy:

   http://www.mfjenterprises.com/products.php?prodid=MFJ-853
   http://www.mfjenterprises.com/products.php?prodid=MFJ-854

I have an MFJ-853 that works as advertised, and it's a usefull device.

Standard disclaimer applies..

73,
Ken Rice
K3VV
Coopersburg, PA