Questions tagged [waas]

For questions about the Wide Area Augmentation System (WAAS), which is an implementation of a Satellite Based Augmentation System (SBAS) for North America. Use the [sbas] tag for generic questions about SBAS instead.

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1answer
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Due to the corrective calculations being ground-based, does the reliability of WAAS degrade with increases in altitude?

Since the WAAS system utilizes stations at known, fixed locations on the ground to make determinations for positional correction, is there a loss in the precision or validity of that correction with ...
1
vote
0answers
37 views

How does WAAS CDI scaling transition during an LPV approach?

I read in the AIM that WAAS vector modes will provide a linear course width of +/-1NM prior to the FAF and then provide a fixed width of +/-0.3NM to the point where an ILS splay would be 0.3NM and ...
4
votes
3answers
177 views

Does turning off WAAS turn off ADS-B out as well?

I'm a CFII and for training GPS approaches with advanced students, I like to occasionally turn off the WAAS receiver on the 430/750/G1000/etc. when they are not looking, to simulate a WAAS failure and ...