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Thread: ADS-B Mandate – ATCs Responsible for Deaths?
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Old 22nd Jan 2014, 10:57
  #193 (permalink)  
Old Akro
 
Join Date: Feb 2006
Location: Melbourne
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Not sure what the WAAS talk is all about.
WAAS is being used colloquially to mean C146a. ADS-B requires a C146a GPS source. The only C146a GPS units are WAAS enabled ones. Garmin GNS 430's are C129a units. Garmin GNS 430W units are C146a units.

I believe today the only C146a units you can buy are the remaining Garmin GNS 430W plus GTN 650 and GTN750. Sometime in the not too distant future there will be King & Avidyne units - but they are not yet commercially available.

Despite that lack of WAAS in Australia, CASA is effectively mandating that we fit WAAS units.
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