Cactus Charlie
Active member
- Joined
- Mar 1, 2025
- Posts
- 41
- Type aircraft owned
- CCX-2000 (FX-3)
- Base airport
- KDVT
- Ratings
- Commercial SEL, SES, MEL, glider. CFI glider, SE, Instrument.
In past posts, here and elsewhere, I have suggested that this remote controlled transponder will squawk 7700 or 7600 if the control input is lost. I have found that is incorrect.
In the EX-3 and FX-3 the transponder is controlled by the GDU 465 via the GSU 25. In a recent flight test I found that my GTX 345R continued to squawk 1200 and continued to provide ADS-B out with valid altitude when the GDU 465 breaker was pulled.
I have not yet tested what happens if GSU 25 is lost.
In the EX-3 and FX-3 the transponder is controlled by the GDU 465 via the GSU 25. In a recent flight test I found that my GTX 345R continued to squawk 1200 and continued to provide ADS-B out with valid altitude when the GDU 465 breaker was pulled.
I have not yet tested what happens if GSU 25 is lost.
