GPS Serial Data to Garmin GTX-327 Transponder

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Subject:		GPS Serial Data to Garmin GTX-327 Transponder
From:		Matt Dralle (dralle@matronics.com)
Date:		Fri Jan 02 - 10:41 AM

Listers,

I've tried sending two different sources of NEMA 0183 data at 4800/9600/19200/38400/57600
baud rates to my Garmin GTX-327 on both serial input ports 1 (db25
Pin 2) and port 2 (db25 pin 19), and configured for "GPS" input.  But I don't
get anything on the 327 serial input test display.  I have been successful at
getting AirData Z-format from the GRT EFIS at 9600 baud into either of the GTX-327
serial ports, so the ports are good.  The GTX-327 just won't seem to see
the GPS data for some reason.

Am I doing something wrong?  Has anyone else tried this successfully?

Thanks!

Matt Dralle
RV-8 #82880 N998RV