Altitude question

[Blueboy]

Hi, just a question about aircraft altitude - the QNH in the preferences is correct for my home airport but aircraft on the ground are still showing at ~600ft when until recently they was showing as 0ft on the ground. Any suggestions as to why this is?

J.D

[Blueboy]

Hi, after having a think, it is possibly due to the high QNH at the airport at present - 1035 hecta-pascals - having an adverse effect on the lower altitude readings. Sounds like I know what I'm talking about !!

J.D

[Runway 31]

Have you auto-set QNH on Smart View

Alan

[Blueboy]

Hi Alan, yes the QNH is Auto-set in Smart view - it's not a big issue I just thought I would ask the question - at lower altitudes are they coming from the transponder direct or is some calculation done by the RB based on QNH value set in preferences?

J.D

[dudbaker]

What is your home airport?  Presumably it is 600 above sea level.

Dudley 

[dudbaker]

Blueboy

I assume your local airfield is 600 feet above sea level.  What is you local airfield.  QNH is above sea level.  Nautical Height.  QFE should read 0 feet on touchdown.  Field Elevation.