Don
Well Known Member
Here's a simple question, or I hope it is. I'm just starting on wiring my 9A and I want to pretty well understand it before I actually start running wires. So I'm laying things out on the bench and I see both my Horizon Hx and the Garmin GTX 330 have places to connect the leads from an OAT probe. I was surprised to see the 330 wanted information on the outside air temp. At this point I have one OAT probe that was going to send data to the GRT EFIS.
Is it possible to connect both units to the same OAT probe or do I need to install a second OAT probe?
A quick glance at the 330 manual seems to indicate that the unit only reports the OAT, which seems kind of quirky to me. If I can't use one OAT probe for both the EFIS and the transponder, can I ignore those two connections on the 330 without encountering other problems?
Is it possible to connect both units to the same OAT probe or do I need to install a second OAT probe?
A quick glance at the 330 manual seems to indicate that the unit only reports the OAT, which seems kind of quirky to me. If I can't use one OAT probe for both the EFIS and the transponder, can I ignore those two connections on the 330 without encountering other problems?