"Larry W4CSC" wrote in message
...
On Sun, 9 Nov 2003 23:25:24 +0100, "Meindert Sprang"
wrote:

And judging from your previous posts here in this group, the interference
problems you have had are caused by certain NMEA equipment that is
definately not FCC approved. Check the multiplexer and expander you so
much
prefer: no FCC approval and well known to produce interference.

I was waiting for this. I've bypass the Noland and it still tears up
MF-HF. If I run just the Garmin and nothing else you can hear it.
Any one of the instruments in the boat radiates into the Icom M802
quite badly. The more you turn on, the more noise there is.....

Any chance of using ferrite ringcores on the NMEA lines to surpress it ?

Meindert