Hi,

Several years ago a used a double pole-double throw switch to select between
my GPS-NAV and Garmin 90 for input to my L-NAV. That way I gained access to
the large Jepessen database when I was a long way from home. It worked
great.

However, the downside to using a switch is that RS-232 data lines are noisy
and it would be difficult to shield the switch well (putting foil around it
wont help). It may cause radio interference. Therefore, I don't really
recommend it.

Paul Remde
Cumulus Soaring, Inc.
http://www.cumulus-soaring.com

"tango4" wrote in message
...
I do the same with my twin colibris. Just switch the tx and RX lines. No
Problem

Ian


"Todd Pattist" wrote in message
...
A friend has two Volksloggers, primary and secondary. The
primary feeds data to his SN-10. The primary failed last
weekend and he wants a way to switch the secondary to the
SN-10 while in flight if it happens again.

I suggested a simple double pole double throw switch to
switch the TXD and RXD lines from the SN-10 between the
primary and secondary VL's. Has anyone done this? Any
problems?

Thanks.
Todd Pattist - "WH" Ventus C
(Remove DONTSPAMME from address to email reply.)