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Search: Posts Made By: Dont Hang Up
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Forum: Tech Log
10th Mar 2016, 08:00
Replies: 14
Views: 4,890
Posted By Dont Hang Up

That will of course be a question of geometry. ...

That will of course be a question of geometry.

At very low and very high elevation angles between ground sensor and target the effect of height errors becomes negligible. The worst sensitivity to...
Forum: Tech Log
9th Mar 2016, 14:06
Replies: 14
Views: 4,890
Posted By Dont Hang Up

No, the ADS-B barometric is always referenced to...

No, the ADS-B barometric is always referenced to 1013mb regardless of height. So you would need to apply QNH for all ADS-B reports.

This is always going to be approximate. Even assuming you have...
Forum: Tech Log
9th Mar 2016, 08:31
Replies: 14
Views: 4,890
Posted By Dont Hang Up

Well as ADS-B reports barometric altitude then...

Well as ADS-B reports barometric altitude then this is based on the Standard Atmosphere. The Standard Atmosphere is defined in geopotential feet. So that is presumably your answer. Though as...
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