Yes, I have adsb out with my gtn650 and trig tt31.
It was fitted under an stc from a partner of Trig. I had to have a software upgrade to the trig which was done for free. The neat thing about the stc was that it included an airspeed switch(pitot static) for automatic air/ground switching.
It is up to Trig to design their product to accept the Garmin GPS data stream.
RS232 is just an interface; nothing to do with the data.
If it doesn’t work, Garmin will not be interested; not their problem. Trig will need to do it.
We did this before; I think this is the data which Trig have to either license or reverse engineer. I never found any documentation on this, and in the project I am working on now I am taking the ARINC429 route because the data in that cannot be concealed for commercial reasons.
Thank you gentlemen. Most helpful as always.
Yes the Trig supports a Garmin GPS input for ADS-B
See 6.1.9.1 in the Trig manual:
https://trig-avionics.com/library/00455-00%20AR%20TT31%20Installation%20Manual%20-%20Full.pdf
Whiskey_Bravo wrote:
There will be a Garmin GPS involved and at the moment the GPS175 is ticking the required boxes. The question is does this (and indeed the rest of the Garmin series) provide a output which can be fed to a Trig ADSB capable transponder to make it ADSB out?Garmin don’t make this very clear, although Trig reference the ability to recognise the Garmin protocols in their manuals.
I am presuming this is two wires on the RS232 interface but would nice to have a confirmation.
I can confirm that this works with the GTN630 and the TT31 using RS232. If the GPS175 uses the same protocols (haven’t checked), then I see no reason why it shouldn’t work with a GPS175 as well.
Possibly a silly question, but while I am planning to spend other peoples money I’ll ask it anyway since I didn’t find a definitive answer anywhere else.
We are doing/planning an avionics upgrade. There will be a Garmin GPS involved and at the moment the GPS175 is ticking the required boxes. The question is does this (and indeed the rest of the Garmin series) provide a output which can be fed to a Trig ADSB capable transponder to make it ADSB out?
Garmin don’t make this very clear, although Trig reference the ability to recognise the Garmin protocols in their manuals.
I am presuming this is two wires on the RS232 interface but would nice to have a confirmation.
Many thanks!