I need to shield radio emmisions from a 5' segment of our dog's radio
fence ( http://radiofence.com ) to let the dog past an area in the
garage - other routes I've considered won't work.

I'm thinking running the line line thru a copper pipe will get the job
done.

The normal method of wrapping two legs of the run around itself won't
work where I need the shield.

Thoughts, comments etc ?