dougweil
Well Known Member
Hey gang,
My RV-7 has an AFS 4500/3500 setup being driven by a 430W (via ARINC). Yesterday for the 4th time in the past 9 years of flying I was cruising along and got a “NO GPS” warning flag on both screens. This freezes the map position display and I have to resort to the small map display on the 430W (no flight director or CDI). The only solution seems to be powering off the AFS boxes (requiring turning off the master switch since they are directly wired to ships power) and do a reboot and all is well. Years ago Rob Hickman told me this is caused by a possible very short interruption in the RS-232 signal from the 430W. Anyone else ever seen this? I can’t seem to duplicate it and since it only happens once every couple years it’s hard to track down!!
My RV-7 has an AFS 4500/3500 setup being driven by a 430W (via ARINC). Yesterday for the 4th time in the past 9 years of flying I was cruising along and got a “NO GPS” warning flag on both screens. This freezes the map position display and I have to resort to the small map display on the 430W (no flight director or CDI). The only solution seems to be powering off the AFS boxes (requiring turning off the master switch since they are directly wired to ships power) and do a reboot and all is well. Years ago Rob Hickman told me this is caused by a possible very short interruption in the RS-232 signal from the 430W. Anyone else ever seen this? I can’t seem to duplicate it and since it only happens once every couple years it’s hard to track down!!