I switched the dc input to the radio to the hot side of the switch (on a
terminal strip) and it seems to be working. I'll need a few successful
flights before I call it good. If it fails to modulate again, I'll ship it
to microairusa for repair.


"Dan Marotta" wrote in message
...
Thanks, Andy, but I'm not sure that will be necessary.

Microair sent me the applicable SB *and* put me in contact with the Rick
at Microairusa.com.

When I bought my glider it had a rather delicate master switch and, since
then, I've added a transponder. I'm wondering if the switch can not
handle the extra current of the transponder and/or is slowly increasing in
resistance and failing. I find that the transmitter works first thing
and, after everything is up and running, it stops modulating.

I'm going to try connecting the radio directly to the battery bus, via
fuse, upstream of the master switch and see if that takes care of the
problem.

I've been wanting to replace the single DPDT switch with two SPST
switches. Then I can switch batteries without interrupting power.


"Andy" wrote in message
...
No luck with the new wiring. And no
luck finding the service bulletin.

Microair removed all the SBs from public access. I think that
happened when ownership changed but not sure of that.

I have several of the SB, including this one, on file and can send you
if you pm me.

Andy