Garmin GNS 530 Pilot's Manual And Reference page 196

SECTION 12
TERRAIN
TERRAIN Alerting
by factors such as satellite geometry, but it is not subject
to variations in pressure and temperature that normally
terrain and obstacle alerts.
picture of the surrounding terrain and obstacles relative
to the position and altitude of the aircraft. Furthermore,
to the surrounding terrain and obstacles. In this manner,
described later in this section.
12-2
Baro-Corrected Altitude
by adjusting the altimeter setting for local atmospheric
conditions. The most accurate baro-corrected altitude
can be achieved by frequently updating the altimeter
setting to the nearest reporting station along the flight
seldom match the standard conditions defined by the
variation results in the aircraft' s true altitude differing from
the baro-corrected altitude.
Using TERRAIN
versions are displayed along with a disclaimer to the pilot.
GNS 530(A) Pilot's Guide and Reference
190-00181-00 Rev. G