[Ham-Mac] off topic 9slightly) - SGC tuner

[David Ferrington]

quick question if I may, with an SGC tuner such as an SGC-237, if no 12v DC
is supplied, does it still leave the wire connected to the coax, or does it
completely disconnect?
does it require 12v to even work on receive?
-- 
Too many parents make life hard for their children by trying, too
zealously, to make it easy for them.
-Johann Wolfgang von Goethe, poet, dramatist, novelist,
and philosopher (1749-1832)