TruTrak, Garmin 396, and Dynon D180 Interface

[Speeddog7]

I'm hoping someone can give me a hand with this. I just got my Digitrack IIVS installed in my Glasair. It worked flawlessly right out of the box. I love the autopilot. I soon realized however that in order for the GPS to talk to the TruTrak, I had to set the interface on the GPS to NMEA IN / NMEA OUT. This kills the data feed to the Dynon unit that provides wind information and a display of the GPS info on the Dynon HSI. Surely I'm missing something and I can get the GPS data supplies to both the TruTrak and the Dynon,,,,, Right?

[myrv9.com]

I'm hoping someone can give me a hand with this. I just got my Digitrack IIVS installed in my Glasair. It worked flawlessly right out of the box. I love the autopilot. I soon realized however that in order for the GPS to talk to the TruTrak, I had to set the interface on the GPS to NMEA IN / NMEA OUT. This kills the data feed to the Dynon unit that provides wind information and a display of the GPS info on the Dynon HSI. Surely I'm missing something and I can get the GPS data supplies to both the TruTrak and the Dynon,,,,, Right?

Speeddog... Am I missing something obvious? Why not just split the NEMA data line coming out of the GPS. I will be running two EFIS screen on my system, and the data line will be split so it can drive both systems.

[TrutrakTech]

What output type does the Dynon require? The AP only needs NMEA out in the feed. You can use the NMEA/VHF out also and it will work just fine. You just have to change the baud rate on the AP to 9600.

[PhantomPholly]

Dynon & TT play fine together both using the x96 GPSes. Search this site for x96 settings - I think you want to avoid using the "FAST" setting.

The Dynon wiki (http://wiki.dynonavionics.com/GPS_Serial_Compatibility_and_Configuration_Setting s) confirms the TT settings work fine for them. I can confirm only insofar as I input my 496 to my HS34, but the setting is the same as if I hooked it directly to my EFIS.

By the way - if you ever get an IFR GPS with ARINC output, leave the x96 connected to the TT serial inputs. If your primary / ARINC GPS takes a nap, simply confirm that your flight plan is in the x96 and then re-select the GPS nav mode on the TT. I keep telling TT to t advertise this "feature...."

:D

[TrutrakTech]

Using normal mode will work, however you may occasionally experience a little bit of lateral wandering as that puts the update rate of the GPS at once every two seconds instead of once per second. Thanks!