On Mar 2, 6:45*pm, "noel.wade" wrote:
Thanks for the tips so far, all.

One note: *There is a ferrite toroid on the Goddard EW DB9f connector
within about 3 inches of the EW MicroRecorder, and close to the PDA
hookup as well. *My PDA and antenna are slightly different; but I use
basically this exact setup:http://www.cumulus-soaring.com/godda...c-DB9f-0-3.jpg
(Note that the actual red-black power leads connect up at the DB-9
connector and have no ferrite toroids close-by. *Not sure if that
matters)

Maybe I ought to try the Radio-shack noise filter that's discussed
over at the AeroElectric Connection site (http://www.markdownalley.com/
products/270-051.jpg), and wire it just up-stream from the radio?

I'll also play with the Coax antenna connector and let you all know
what I find!

Take care,

--Noel

Have you tried combinations of the PDA powered off while the EW is on
to see if it is the PDA or EW that is causing interference?

I would do the easiest change possible first. Run each of the red and
black wired though a ferrite toroid (one large enough to wrap the wire
through a few times. Try it as far up the wire as you can. Keep those
red/black wires as short as possible.

Change one thing at once. Start by trying to fix interference at its
source not the receiver unless you have to.

Radio Shack junk: not in my glider!


Darryl