Um, just fyi ... a transponder is a device that receives an interrogation
and issues a reply in response to the interrogation. bip...BONGGGG
bip...BONGGGG

An ELT is a device that broadcasts a "find me" signal without any
interrogation required.

Jim

--
"If you think you can, or think you can't, you're right."
--Henry Ford


"Jay Honeck" wrote in message
ups.com...

direction finders that allowed us to find transponders that were going
off.

With the impending transition to 406 mhz transponders