I think he was asking what would kill your comm and transponder but not your nav.
likelihood is that it would be a whole electrical system failure, in which case you'd
have to depend on your handheld electronics. You do have spare batteries for them
when you fly, don't you?

If I did for some reason run short on spare batteries, I can tell you that the GPS
would take priority over the handheld comm. Besides, my GPS only uses 4 AA's
where my handheld comm uses 10.

Ron Natalie wrote:

"Steven P. McNicoll" wrote in message news



Well, that's where I was going when I asked "what bizarre failure causes me
to lose both of my completely independent transceivers, and my transponder,
but leaves me fully confident
of the continued flawless operation of my other avionics?" An electrical
failure will affect all of your installed avionics, not just the
transceivers and transponder.

What additional installed avionics do most of us have? Other than the audio panel,
everything connected to my electrical system is a light (well except for pitot heat).

--
--Ray Andraka, P.E.
President, the Andraka Consulting Group, Inc.
401/884-7930 Fax 401/884-7950
email
http://www.andraka.com

"They that give up essential liberty to obtain a little
temporary safety deserve neither liberty nor safety."
-Benjamin Franklin, 1759