Garmin GNS 530 Pilot's Manual And Reference page 211

Premature Descent Alerting
system detects that the aircraft is significantly below the
craft is either:
nm of the threshold.
700
600
500
400
300
200
100
Runway
1 2 3 4 5 6
Threshold
Distance From Destination Airport (nm)
Figure 13-5 PDA Alerting Threshold
190-00181-00 Rev. G
"Too Low Terrain" "Too Low Terrain"
7 8 9 10 11 12 13
GNS 530(A) Pilot's Guide and Reference
TAWS Inhibit
-
Inhibiting TAWS:
1) Select the TAWS Page and press the MENU Key.
'Inhibit Terrain?' is selected by default (Figure
13-6).
Figure 13-6 TAWS Page Menu
Press the ENT Key. The 'TER INHB' annunciation
2)
is displayed in the TAWS annunciator field
when TAWS is inhibited (Figure 13-7).
Annunciator Field
14 15
Figure 13-7 Annunciator Field
Enabling TAWS:
1) Select the TAWS Page and press the MENU
Key. 'Enable Terrain?' is selected by default.
Press the ENT Key. The TAWS system is
2)
functional again.
SECTION 13
TAWS
13-7