Using the JustFlight Piper Turbo Arrow IV I was just flying the "RNAV 08L Z gps LPV" approach.
I expected to get the Glideslope on my HSI since this is an LPV approach.
Just before reaching the FAF (PIKMI), the Glideslope actually became alive but was jumping from bottom to the correct position up and down all the time instead of staying steady.
Same for the vertical guidance needle on the NAV1 instrument.
It was just like the GS was turned off and on all the time.
This behavior remained the same for the whole final approach.
My coupler dial for the autopilot was on NAV (even though LOC is recommended for localizers), but I don't think this is an issue.
Did someone experience this behavior? Is the HSI GS not supported on the JF PA28R with the TDS GTN750?
When switching to NAV1 ILS frequency, the GS worked as usual.
If that matters: I was running the TDS GTN750 as standalone, no VC integration (GNS530 selected in the cockpit).
Just noticed the Known Issues section:
I expected to get the Glideslope on my HSI since this is an LPV approach.
Just before reaching the FAF (PIKMI), the Glideslope actually became alive but was jumping from bottom to the correct position up and down all the time instead of staying steady.
Same for the vertical guidance needle on the NAV1 instrument.
It was just like the GS was turned off and on all the time.
This behavior remained the same for the whole final approach.
My coupler dial for the autopilot was on NAV (even though LOC is recommended for localizers), but I don't think this is an issue.
Did someone experience this behavior? Is the HSI GS not supported on the JF PA28R with the TDS GTN750?
When switching to NAV1 ILS frequency, the GS worked as usual.
If that matters: I was running the TDS GTN750 as standalone, no VC integration (GNS530 selected in the cockpit).
Just noticed the Known Issues section:
Quote:The HSI displays only horizontal deviation when in GPS mode, unfortunately vertical deviation is not yet supported.Is this jumping GS needle the current expected behavior for that reason, so I can't fly LPV (or LNAV/VNAV) approaches at all?