Note from our mechanic:
Garmin has finally come out with the new software for the WAAS units that is supposed to fix the following problems. I just received the software today and will start the install process ASAP.
The 400W / 500W Series Main Software version 3.00 contains a number of new capabilities and features, including:
* Added the ability to load an arrival or departure without first removing existing arrival or departure, addressing the issue described in Service Alert 070227-00
* Reduced TAWS nuisance alerts for circling approaches
* Corrected compatibility issue with WX500 Stormscope identified in
Installation Bulletin 0711
* Added ability to store and remotely tune up to 15 radio channels
* Added XM weather products: Lightning, Cell Movement, and Winds Aloft
* Added compatibility with Avidyne product's: EXP5000 PFD, EX5000 MFD and EX500 MFD
* Added capability to display vertical GPS approach guidance on
Honeywell EFS 40/50
* Added capability to display traffic from Honeywell KMH 980 (KMH 920) and KTA 970 (KTA 910)
* Improved prompting for course reversals at IAF transitions on approach
* Improved Auto-Zoom functionality
* Improved VNAV functionality during holds
* Corrected the operation of the E6B winds aloft calculation on Winds page
* Unit now retains user settings on NAV1 page over a power cycle (400W series units)
* Unit now starts up in last mode used (GPS or VLOC) instead of reverting to GPS mode at startup
* Corrected issue of intermittent screen flashing
The 400W / 500W Series GPS Software version 3.0 allows for the removal of the IFR GPS operational limitation with TSO-C146a when using a compliant antenna.
Of course this will be done by Garmin under warranty.
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