The King KT76A Transponder vs. Globalstar hand held sat phone issue is
a documented problem. Here is a link that explains the problem:

http://support.controlvision.com/kb/...ew/KB0078-0108

"Dan Luke" wrote in message ...
"Chip Jones" wrote:
The pilot calls my trainee and asks for permission to turn
off his transponder for five minutes so that he can "Go
download the latest weather".

Weird. Perhaps his transponder causes interference with his wx
receiver. If so, he *really* needs to get that fixed.