On Tue, 10 Oct 2006 18:32:03 -0700, "Rod Maupin"
wrote:

What is the advantage of using them?

Hi Rod,

Strain relief, which, by the way, can be achieve by simply strapping
it to the tower.

Downside: creates a voltage standoff too in the event of lightning
strike. This is solved by the alternative offered in the paragraph
above (grounding implied).

73's
Richard Clark, KB7QHC