CL650 GNSS difference

[Tom Tom]

Hey 

I own the CL650 version 1.6.1 and have a problem with the altitude display when flying online.
With the setting e.g. FL390 the Gnss shows me a FL420.
So I always get problems with the air traffic controller.
The selected QNH is on standard 1013 /29.92.
On the ground, the deviation is not so great. e.g. LSZS GNSS ALT 5600 FT and GNSS HT 5760FT.
Satellites 8 / SVC in use EGNOS 

Who can help me here?

• sincerely
• Tom
•  

[Cam]

10 hours ago, Tom Tom said:

Hey 

I own the CL650 version 1.6.1 and have a problem with the altitude display when flying online.
With the setting e.g. FL390 the Gnss shows me a FL420.
So I always get problems with the air traffic controller.
The selected QNH is on standard 1013 /29.92.
On the ground, the deviation is not so great. e.g. LSZS GNSS ALT 5600 FT and GNSS HT 5760FT.
Satellites 8 / SVC in use EGNOS 

Who can help me here?

• sincerely
• Tom
•  

If I recall correctly, there is a topic that covers this exact issue - I think you have to turn Temp Compensation off from the FMC Menu (2nd page).

[Tom Tom]

I have found the problem , when i flying online .

You don`t select in User Settings the point Simulate realistic Temperature ...........

Thats all.