Chris,

All cables are not equal. Make sure you have a shielded cable with ferrite
supressor.

Richard
www.craggyaero.com

"Chris Davison" wrote in message
...
A problem with interference, all advice welcome.

.radio by itself works fine...but when I turn the
vario on I get huge amounts of noise (even some with
Squelch ON). Radio is a Dittel FSG50, vario is Cambridge
302/303.

Where do I start looking?

Chris