Garmin GTX-327 transponder setup?

13brv3 · #1 11-10-2006, 06:07 PM

Greetings,

Does anyone know if it's possible to make a GTX-327 transponder NOT turn on automatically when power comes on? I've gone through the installation manual, and I don't see a setting for this. There IS a setting that turns the auto-standby feature (that I didn't even know about) on or off. It was defaulted to on, and I tried turning it off, but that didn't help me.

If I can't have it stay off, does anyone know if it will hurt it to leave it in standby during engine starts?

Thanks,
Rusty (DAR tomorrow, first flight maybe Sunday)

w1curtis · #2 11-10-2006, 06:18 PM

Quote:

Originally Posted by 13brv3

Does anyone know if it's possible to make a GTX-327 transponder NOT turn on automatically when power comes on? I've gone through the installation manual, and I don't see a setting for this. There IS a setting that turns the auto-standby feature (that I didn't even know about) on or off. It was defaulted to on, and I tried turning it off, but that didn't help me.

If I can't have it stay off, does anyone know if it will hurt it to leave it in standby during engine starts?

Search works really great!
http://www.vansairforce.com/communit...ad.php?t=12270
Do NOT wire pin #1 to power.

13brv3 · #3 11-10-2006, 06:44 PM

Quote:

Originally Posted by w1curtis

Search works really great!
http://www.vansairforce.com/communit...ad.php?t=12270
Do NOT wire pin #1 to power.

Man, that's embarrassing

Thanks William. I usually DO search before asking questions, but in this case, I guess I figured I was the only one who didn't appreciate the auto power up "feature".

The answer is good news / bad news info though. Since Garmin's stupid policy forced me to pay someone else to wire the harness, I never knew about the option of using pin 1. Since this harness is not easily reached now, I'll just have to file this in the "next time I have to go in there" category. Rats!

Thanks again for the speedy pointer to the previous thread.

Cheers,
Rusty

MrNomad · #4 11-13-2006, 07:27 AM

It's always best to have electrical devices turned off when starting the engine. The surges and sags can destroy and/or weaken lots of components.

13brv3 · #5 11-13-2006, 08:52 AM

Garmin does specifically say that the transponder should be off during start, so that took care of that question. As for the power on routine, I moved my Dynon from the avionics bus to teh master bus. Now I can go through all my start up before I ever get to the point where I need to turn on the avionics breaker. Problem solved

Thanks,
Rusty