F1 GTN750 Showing Errors

[jimh20]

Hi Steve,
|'m using the F1 GTN750 for navigation in aircraft which have that instrument built into the VC panel. Ideal Flight has built scores of flight plans which I have successfully flown using that instrument.

With no prior warning at all, I have the GTN750 rejecting a plan with error messages. I'm asking for your comments lest I've introduced some error in my planning in Ideal Flight. I'm attaching two screen captures of the error messages. I hope you can help me solve this problem.

Regards, Jim H.

Relevant Flt.Plan: FPN/RI:F:N55022W001418:F:N55177W002363:F:N55299W003212:F:N55290W003296:F:N55203W004450:F:N55279W004578:F:N55380W004525:F:N55518W004269:F:N55523W004260

[Steve Waite]

Hi Jim,

Thanks for contacting.

It says user waypoints full.

With the Flight 1 version there is a user data file that can be deleted, I believe the RXP version has a similar file.

In Ideal Flight Exports section there's an optional item for the GTN that deletes the user waypoints file in the Flight 1 version, (GTN 750/650 User Data) you can change the name of the file and the location to that of the RXP version similarly as you did with setting up the export plan.

Alternatively I think there is a way in the instrument options to delete the user data.

Let me know how you get on and if you have a path and name of the file let me know and I can add it to the Ideal Flight Help.

Regards
Steve

[jimh20]

Hi Steve,

With the Flight 1 version there is a user data file that can be deleted, I believe the RXP version has a similar file.

In Ideal Flight Exports section there's an optional item for the GTN that deletes the user waypoints file in the Flight 1 version, (GTN 750/650 User Data) you can change the name of the file and the location to that of the RXP version similarly as you did with setting up the export plan.

Alternatively I think there is a way in the instrument options to delete the user data.

1. Is this deleting path?
C:\ProgramData\Garmin\Trainers\GTN\nonvol\sys_nand0,GTN 750/650 User Data (\sys_nand0)
In the "nonvol" folder resides a strange file named sys_nandi - size 270,337KB. I suspect this contains the user waypoints. I've scoured my C:\ and can't find any other suspect.
When I opened sys_nandi with notepad I found only rows and columns of "y"s.

2. Within the F1 GTN750 instrument there is indeed an option to delete one or all user waypoints. Unfortunately it stated that any waypoint I chose was always part of a flight plan and could not be deleted.

After hours of searching I gave up, uninstalling F1 GTN750 and Garmin trainer, then re-installing both. In the "nonvol" folder, along with copies of other original "EEPROM" files, I placed a "sys_nandi" file which I had opened with notepad and deleted the contents. I suspect I may have fatally damaged that file.

After all the above I built a fresh flight plan in Ideal Flight, exported, and all seems to be working properly with no errors so far. The GTN750 in each of my aircraft is accepting the new plan.

I hope this long report is of some interest.

Regards, Jim

[Steve Waite]

Hi Jim,

Thanks for the information.

I was thinking you had the RXP GTN versions which I am unsure of the paths but they are similar to the Flight 1 versions. But If you have the F1 GTN then try with setting up the 2 Export functions in Ideal Flight together:

Flight 1 GTN 750/650 .gfp
generally found in: "C:\Program Files\Lockheed Martin\Prepar3D v4\F1TGTN\FPL\flightplanname.gfp

GTN 750/650 User Data (\sys_nand0)
generally found in: "C:\ProgramData\Garmin\GTN Trainer Data\GTN\GTN2nonvol\sys_nand0

The paths are system dependent so you may need to select the actual paths found on your system in the Ideal Flight Exports settings when you Add Location.

Regards
Steve