Alvaro Lopez
I'm New Here
I wonder if you could help me with my GPS.
My avionics is Garmin G3X, with a screen GDU 460, GPS Module 20A, Transponer GTR 200, GPS antenna GA36 and my Aircraft is RV-12iS, E-LSA category.
Let me tell you what my situation is: when avionics are first powered on, the GPS shows as “acquiring signal” for several minutes. Then, an error message alerts “GPS receiver needs service” .Also, when going to System Information screen, in configuration mode, the system does not show any network or communications error, it only shows “Receiver Fault”.
After doing several tests (taking aircraft out and away from hangars, exposing GPS antenna directly to the sky by removing upper fiberglass cowl, leaving the antenna exposed to the sky for over an hour to see if it would “lock-in” on GPS), we went ahead and disconnected the GPS antena from the GPS20A to then plug (and configure) the GA36 antenna straight to the PFD, which resulted in perfectly good satellite reception and proper geo-location of the aircraft, ruling the antena and antena cable out. CAN bus connector/wiring was also ruled out, since the GPS20A is properly identified by the G3X system while plugged-in and it shows no comms/network issues.
I have contacted Garmin customer service and they send me two news GPS20A (GPS modules) cause they though that probably the GPS module is bad, but the problem occurs again, a Tucson Garmin dealer tried to help me but the only solution he found was to install a second antenna and connect it directly to the PDF , but actually there are many RV12iS receiving WAAS with a single GA36 antenna connected to the GPS module.
I don't know if what happened to me was because at first I ordered my avionics from VANS without interest in installing ADSB-IN and a second screen.
Do you think this could affect?
Has anyone been through this before?
the installation of a second GPS antenna is the solution?
My avionics is Garmin G3X, with a screen GDU 460, GPS Module 20A, Transponer GTR 200, GPS antenna GA36 and my Aircraft is RV-12iS, E-LSA category.
Let me tell you what my situation is: when avionics are first powered on, the GPS shows as “acquiring signal” for several minutes. Then, an error message alerts “GPS receiver needs service” .Also, when going to System Information screen, in configuration mode, the system does not show any network or communications error, it only shows “Receiver Fault”.
After doing several tests (taking aircraft out and away from hangars, exposing GPS antenna directly to the sky by removing upper fiberglass cowl, leaving the antenna exposed to the sky for over an hour to see if it would “lock-in” on GPS), we went ahead and disconnected the GPS antena from the GPS20A to then plug (and configure) the GA36 antenna straight to the PFD, which resulted in perfectly good satellite reception and proper geo-location of the aircraft, ruling the antena and antena cable out. CAN bus connector/wiring was also ruled out, since the GPS20A is properly identified by the G3X system while plugged-in and it shows no comms/network issues.
I have contacted Garmin customer service and they send me two news GPS20A (GPS modules) cause they though that probably the GPS module is bad, but the problem occurs again, a Tucson Garmin dealer tried to help me but the only solution he found was to install a second antenna and connect it directly to the PDF , but actually there are many RV12iS receiving WAAS with a single GA36 antenna connected to the GPS module.
I don't know if what happened to me was because at first I ordered my avionics from VANS without interest in installing ADSB-IN and a second screen.
Do you think this could affect?
Has anyone been through this before?
the installation of a second GPS antenna is the solution?
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