Hello,

When using the GTN 750 as integrated into the Carenado 210, I am unable to change the course needle on the HSI when in GPS mode. I have tried multiple combinations of auto-slew on or off, OBS control, and HSI integration and I cannot gain control over the course needle.

 

The course needle works fine in VLOC and with the default GNS 530 in GPS mode. I’m thinking there’s a data ref conflict somewhere that is locking out the course needle with the RXP unit active.

I can fly fine using auto-slew, but I would really like control of the needle as intercepting radials to airways or VORs is not currently possible with the GTN. 

There are a couple ancient threads on this issue but no solution was found. Any ideas as to what the issue could be here?

 

Thanks!

Hi,

The RXP GTN is not "locking out" the CRS knob at all: auto-slew only slews the CRS when the DTK changes, and only when it changes, but you can still change the CRS.

Therefore I believe this issue is either the Carenado 210 code logic locking it out (either voluntarily or just as a by product of overriding the GPS which it doesn't handle appropriately), or there a setting in plane maker locking out the CRS when in GPS mode. Unfortunately this doesn't look like something we can have any control over.