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Old 03-18-2023, 01:50 PM
BobTurner BobTurner is offline
Join Date: Dec 2011
Location: Livermore, CA
Posts: 8,927

Originally Posted by cdeggz View Post
Hereís the text from the 480 user manual:

ďWhen using OBS mode with a VOR station, the GNS 480 will use the station declination of the VOR. For other waypoints, the GNS 480 will use magnetic variation based on your present position.Ē

Iím told the 430 does the same and I would expect the 650 to as well
Thanks for this reference, I learned something. No wonder the database updates are so expensive - they must include mag declination data for all the vorís, too. Maybe I should have guessed this - Iím pretty sure that de-commissioned VORs disappear from the gps database.

Have you actually pulled the wingtip and looked at the antenna? Iíve seen everything wrong that you can imagine: ground leg a foot away from the end rib, radiating leg against the rib with the ground leg further out(!). Iíve even seen one builder who thought he could tie two Archers (one from each wingtip) together (bad idea).
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