Garmin 520 - Manual (Page 54)

WAAS
The Wide Area Augmentation System (WAAS) capability
produces a more accurate position fix. When enabled
(GPS set to Normal and WAAS set to Enabled through
the System Setup Page, also the interface must be set
to something other than RTCM mode), this feature
searches for WAAS satellites near your location and
then receives data for correcting differentials in the
GPS satellite signals. WAAS satellite numbers begin
at number 33 and are displayed on the Satellite Page.
When differential correction data has been received for
GPS satellites (numbers 32 or below), a D displays in
the signal bar beneath the skyview. It is helpful to orient
the unit antenna toward the WAAS satellite shown in the
skyview. To learn more about the WAAS System, refer to
the Federal Aviation Administration Web site ( http://gps.
faa.gov/ ).
Because the Rino 520/530 relies on satellite signals to
provide you with navigational guidance, the unit’s view
of the sky determines how fast you achieve navigational
status. GPS signals do not travel through heavy objects
or people: For best results, keep the unit in clear view of
the sky.
Satellite Strength
At least three satellite signals are needed to determine
your location, otherwise the unit displays a “Poor
Satellite Reception” message with four options:
Use with GPS Off—Select this option if you want to turn
GPS off.
Satellite Page using WAAS
WAAS Satellites
44 Rino ® 520/530 Owner’s Manual
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