Trig TT-22 with GRT HX
Posted: Mon Feb 21, 2022 5:00 pm
If I have a GRT Safefly 2020 GPS module connected to my Hx EFIS for GPS navigation data, will the HX transmit ADS-B GPS data to a Trig TT-22 xpndr via the RS-232 serial link from the HX to the TT-22 that transmits control and alt encoder data to the TT-22?
Or do I need to make a direct connection from the Safefly 2020 GPS to the Trig TT-22 for ADS-B compliant GPS position data?
Figure 2-5: GRT Trig Adapter Wiring Diagram, in the GRT Trig TT-22 installation supplement specifies in Note 2: "that a GPS connection to the TRIG serial adapter is not needed" but what isn't clear to me is if this applies when the TT-22 is being used provide ADS-B Out.
Or do I need to make a direct connection from the Safefly 2020 GPS to the Trig TT-22 for ADS-B compliant GPS position data?
Figure 2-5: GRT Trig Adapter Wiring Diagram, in the GRT Trig TT-22 installation supplement specifies in Note 2: "that a GPS connection to the TRIG serial adapter is not needed" but what isn't clear to me is if this applies when the TT-22 is being used provide ADS-B Out.