The italicized text below was posted on a website used mostly by broadcast engineers by someone well known here and on many other "Part 15" boards.
Hopefully the response I posted to it will be useful to those wanting more information on this topic.
I'm going to share a little known secret or maybe a forgotten one. this is how you make poor mans radiating cable. take any 50 ohm cable put a suitable 50 ohm dummy load rated for your power level on one end and reverse the center and shield so that tx goes to shield and ground goes to center. there you go. it will be a leaky cable just adjust your power levels for the coverage you need. I learned that from the late pastor James R Cunningham's carrier current manual.
Response -
Note to the poster of the above clip:
For a 1:1 SWR dummy load at the far end of a coaxial cable, reversing the conductors of that cable where they connect to the output terminals of a transmitter produces no more r-f radiation from that coaxial cable than if its conductors were _not_ reversed.
In such cases/configurations, equal r-f currents are conveyed in the cable along the outer diameter of the inner conductor, and the inner diameter of the outer conductor, due to skin effect. Those currents are 180 degrees out of phase with each other in both of those configurations.
Therefore radiation from that cable after such a conductor reversal is unchanged (other conditions equal).