krj wrote:
I just finished installing an SSB on my boat. When I turn on my freezer
I get noise on the radio that sounds like morse code. The freezer has a
Danfoss BD50 compressor with a digital thermostat. Has anyone else had
this problem. I think I remember Gordon West writing about this problem
in one of the sailing mags. but can't remember which one or when.
krj

Hi KRJ,
Yes indeed a Danfoss compressor is a heck of a source of noise. The
Gordon West article talks about putting aluminum foil around the
compressor to make a sort of a faraday cage to mute this noise...been
there, done that, bought the tee shirt and it didn't work. The only
solution I've found in 9 years of cruising is to turn the offending
appliance to the OFF position!

There are other sources of noise that can interfere with SSB reception
on a boat. I've recorded a bunch of them on the CD ROM that comes with
my book, Marine SSB Radio for Idi-Yachts.
See http://www.idiyachts.com for more info

Inverters, pumps, fans, shore power and the like can mess up the radio
reception as well.
Happy Holidaze!
Capt Marti