[RFI] Common mode choke on 4 Square feedlines without skewing phasing?

[Jim Brown]

See the parts of the text in k9yc.com/2008Cookbook.pdf  that talk about 
"egg insulators" and "transfer impedance."

73, Jim

On 1/29/2019 9:23 AM, Andy KU7T wrote:
> New question:  Is a current choke on the 50 Ohm run needed?  I am 
> using 230 feet of LMR400MAX from the controller to an antenna switch 
> and then 100 foot of RG213 to the rig. If it is needed, where would I 
> put it?  1) on 50 Ohm coax on the controller, 2) on the 50 Ohm coax as 
> it leaves the foot print of the 4 sq, for example about 60 foot down 
> the line, or 3) before the antenna switch?