Tankerpilot75
Well Known Member
I just finished installing my GTX 335 with internal gps but have some error messages.
On the main screen is says "MSG NO 1090ES TX"
I went to the message screen it said:
"ADS-B POSITION INPUT FAILED"
"PRESSURE ALTITUDE FAILED"
I believe the "ads-b position input failed" message is because the airplane was in a steel hanger because both my 430 gps' also said RAIM IS NOT AVAILABLE. However my lower 430 also said "NO ALTITUDE INPUT IS BEING RECEIVED which would correlate with the second message of the GTX 335.
I just removed a GTX 330 which was working fine but it was non-ES. My RV has dual GRT Horizon WS EFIS' with an ARINC 429. My 430s are non-WAAS. I assume altitude information was sent to the old 330 transponder from the EFIS through either the ARINC or RS232 connections.
The other day I asked the "G3Xpert" for programming help and he referred me to their field service engineer. The field engineer's response basically was "each field entry is explained in the preceding pages" of the various sections of the manual. Not much help from Garmin!!!
I'm pretty sure my "problems" are programming related and how I misprogrammed "INTERFACES" and possibly "SENSORS."
My old GTX 330 was set at:
429 Input
Channel 1: Speed - Low; Data - ADC NO ALT
Channel 2: Speed - Low; Data - GPS/FMS
Channel 3: Speed - Low; Data - OFF
429 Output
Channel 1: Data - OFF
Channel 2: GARMIN W/TIS
RS 232 Input
Channel 1: OFF
Channel 2: ICARUS ALT
RS 232 Output
Channel 1: OFF
Channel 2: OFF
Of course the manual for the GTX 335 labels RS232 and ARINC 429 settings with totally different names and the explanations don't help me translate from one label to another. If anyone can give me some guidance I would really appreciate it!
Jim Harris
On the main screen is says "MSG NO 1090ES TX"
I went to the message screen it said:
"ADS-B POSITION INPUT FAILED"
"PRESSURE ALTITUDE FAILED"
I believe the "ads-b position input failed" message is because the airplane was in a steel hanger because both my 430 gps' also said RAIM IS NOT AVAILABLE. However my lower 430 also said "NO ALTITUDE INPUT IS BEING RECEIVED which would correlate with the second message of the GTX 335.
I just removed a GTX 330 which was working fine but it was non-ES. My RV has dual GRT Horizon WS EFIS' with an ARINC 429. My 430s are non-WAAS. I assume altitude information was sent to the old 330 transponder from the EFIS through either the ARINC or RS232 connections.
The other day I asked the "G3Xpert" for programming help and he referred me to their field service engineer. The field engineer's response basically was "each field entry is explained in the preceding pages" of the various sections of the manual. Not much help from Garmin!!!
I'm pretty sure my "problems" are programming related and how I misprogrammed "INTERFACES" and possibly "SENSORS."
My old GTX 330 was set at:
429 Input
Channel 1: Speed - Low; Data - ADC NO ALT
Channel 2: Speed - Low; Data - GPS/FMS
Channel 3: Speed - Low; Data - OFF
429 Output
Channel 1: Data - OFF
Channel 2: GARMIN W/TIS
RS 232 Input
Channel 1: OFF
Channel 2: ICARUS ALT
RS 232 Output
Channel 1: OFF
Channel 2: OFF
Of course the manual for the GTX 335 labels RS232 and ARINC 429 settings with totally different names and the explanations don't help me translate from one label to another. If anyone can give me some guidance I would really appreciate it!
Jim Harris