Wed Dec 04, 2019 2:44 pm
#1733732
I placed a similar thread with the same title last year. As a result i had both GPS antennas removed, with one requiring replacement. Both needed earthed back to the chassis; which was cleaned up, conducting grease applied and refitted. the cables weren't changed. This seemed to do the trick for a few months.
Both GPS systems have separate antenna and cabling between the units and antennae.
The problem has returned. Some flights both GNS430W and a GPS150XL both drop out of signal: together!
Just like the dentist; when I drop the aircraft off for a 100hr, both units are functioning perfectly well. However the fact that they both have separate antennae, they either function or don't simultaneously, i'm beginning to think that there could be something else on the aircraft that interferes with the GPS signal that causes the signal block. The cables haven't been changed when the antenna works were undertaken last year, avionics chap doesn't think this is an issue due to the fact they both fail together.
The CAMO and avionics installer are with the aircraft for the next couple of days but an intermittent fault of this nature could prove pretty £laborious thus any pointer once again, appreciated.
thanks
Both GPS systems have separate antenna and cabling between the units and antennae.
The problem has returned. Some flights both GNS430W and a GPS150XL both drop out of signal: together!
Just like the dentist; when I drop the aircraft off for a 100hr, both units are functioning perfectly well. However the fact that they both have separate antennae, they either function or don't simultaneously, i'm beginning to think that there could be something else on the aircraft that interferes with the GPS signal that causes the signal block. The cables haven't been changed when the antenna works were undertaken last year, avionics chap doesn't think this is an issue due to the fact they both fail together.
The CAMO and avionics installer are with the aircraft for the next couple of days but an intermittent fault of this nature could prove pretty £laborious thus any pointer once again, appreciated.
thanks
Craig