I recently handled an estate sale. Among the SK's posessions was a one-foot
piece of RG-8 or RG-213 which he had carefully modified by cutting away
about 3/16 inch of the jacket and braid all around the circumference of the
cable, near its middle.

I am not sure what use this would be to a ham. Some audio cables are made
up with discontinuous shields for elimination of ground loops but I've not
seen it done for RF.

Ideas?