AeroNav 900/880 Series Pilot’s Guide
89000039-010
Rev 1 May 2019 Aux Subsystem 5-59
NOTE
Global SBAS Support
Wide area/regional satellite based augmentation
system (SBAS) support provided by the AeroNav
include WAAS (Continental US, Alaska, Canada and
most of Central America), EGNOS (most of Europe
and North Africa), MSAS (Japan) and GAGNAN
(India). These are regional augmentations of the
GPS satellite constellation and should not be
interpreted as meaning the AeroNav is compatible
with other GNSS constellation systems such as
Galileo (Europe), GLONASS (Russia), or Compass
(China).
The GPS navigation states possible are:
System performing self test. This is
the initial state value but happens
so quickly it is rarely observed.
System has acquired enough
satellites to conduct basic
navigation but without integrity.
System has acquired enough
satellites to conduct navigation with
fault detection and exclusion
integrity.