AXP340/322 ADS-B Transponder - APX340 Pressure Altitude

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APX340 Pressure Altitude

Printed From: Avidyne
Category: Avidyne General
Forum Name: AXP340/322 ADS-B Transponder
Forum Description: Topics on the Avidyne AXP340/322 ADS-B Transponder
URL: https://avidynelive.com/forum_posts.asp?TID=1965
Printed Date: 26 Mar 2026 at 1:01pm
Software Version: Web Wiz Forums 12.07 - https://www.webwizforums.com

Topic: APX340 Pressure Altitude

Posted By: gzinga
Subject: APX340 Pressure Altitude
Date Posted: 12 Apr 2020 at 6:02am

Hello,

how does it calculate/measure pressure altitude? Mine wasn't showing anything yesterday just a bunch of lines

Thanks

Replies:

Posted By: Ibraham
Date Posted: 12 Apr 2020 at 7:28am

It gets pressure altitude data from the altitude encoder