Hi, I've been using the GTN750/650 for some time and it's my best friend in VR with its popout capability, large lettering and clickspots, and navigation!

I have planes however with the native G1000 which I want to use for navigation, and use the GTN750/650 as my VR helper only i.e. to set radios, transponder, lookup waypoint info etc.

When used in this fashion the GTN750/650 unfortunately seems to confuse the G1000 navigation, even though I have all the GTN750/650 connect, and master device settings unchecked.  Radios, transponders etc get changed as expected via the GTN, but as soon as I open the GTN750/650 the G1000 GPS stops tracking correctly, and the usual G1000 data like distance to waypoint etc goes haywire.  Switch off the GTN and G1000 navigation returns.

I've also tried using it as GTN2 and set it to change Nav1/Com1, and same issue occurs.

Is there a known workaround or fix?  Strange use case I know, but its a feature I'd really like.

Thanks

Edited October 29, 20187 yr by wsanders75

Hi, 

unfortunately I'd guess this is a use case which it is not at all designed for and the reason is simple: the G1000 is not only an EFIS like the G500/600, it is also a GPS + autopilot. As such, there is an inherent conflict having both at the same time.

Ok, thanks for clarifying.  Was hoping there may be a hack or workaround.