WannFly
Final Approach
Last Saturday i asked for a VFR Practice Approach to ILS 36 and was getting vectored to FAF; and was asked by ATC to maintain 2800. i noticed my transponder was reporting 2700, when i was holding 2800, which as i understand is within limits [91.217(b)]. I have a blind encoder
there was another aircraft talking to ATC and ATC informed them about my location saying Archer is indicating 2700.
as i understand, ATC has some kind of Gizmo that corrects the Pressure Altitude and Baro and shows them the correct Altitude the Mode C is reporting. ... not that its a big deal with 100 feet difference, i am wondering why ATC was getting 2700 instead of the baro corrected 2800 that i was flying. the reason i ask is, when it gets too cold, i have noticed over 300 feet difference between what my baro is saying and what the transponder reports.
thoughts?
there was another aircraft talking to ATC and ATC informed them about my location saying Archer is indicating 2700.
as i understand, ATC has some kind of Gizmo that corrects the Pressure Altitude and Baro and shows them the correct Altitude the Mode C is reporting. ... not that its a big deal with 100 feet difference, i am wondering why ATC was getting 2700 instead of the baro corrected 2800 that i was flying. the reason i ask is, when it gets too cold, i have noticed over 300 feet difference between what my baro is saying and what the transponder reports.
thoughts?