HRB wrote:
I've heard the term "LID" used on ham radio to describe a poor
operator. Any idea where the term came from?

There are different possible explanations, just like for many
other words of "Ham Speak". AC6V has compiled a collection of
explanations on his website: http://www.ac6v.com/73.htm

73, - another mystical one!
--
Fabian Kurz, DJ1YFK * Dresden, Germany * http://fkurz.net/