
GNS 530(A) Pilot’s Guide and Reference
190-00181-00 Rev. G
12-7
SECTION 12
TERRAIN
Premature Descent Alerting
Ê*Ài>ÌÕÀiÊiÃViÌÊiÀÌÊ*®ÊÃÊÃÃÕi`ÊÜ iÊÌ iÊ
system detects that the aircraft is significantly below the
À>Ê>««À>V Ê«>Ì ÊÌÊ>ÊÀÕÜ>ÞÊ}ÕÀiÊ£Óx®°ÊÊ
*Ê>iÀÌ}ÊLi}ÃÊÜ iÊÌ iÊ>ÀVÀ>vÌÊÃÊÜÌ Ê£xÊÊ
vÊ Ì iÊ `iÃÌ>ÌÊ >À«ÀÌ°Ê *Ê >iÀÌ}Ê i`ÃÊ Ü iÊ Ì iÊ
aircraft is either:
UÊ ä°xÊÊvÀÊÌ
iÊÀÕÜ>ÞÊÌ
ÀiÃ
`
Ê ",
UÊ Ê>ÌÊ>Ê>ÌÌÕ`iÊvÊ£ÓxÊviiÌÊÊÜ
iÊÜÌ
Ê£°äÊ
nm of the threshold.
700
600
500
400
300
200
100
Height Above Terrain (Feet
)
Distance From Destination Airport (nm)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
“Too Low Terrain”
“Too Low Terrain”
Runway
Threshold
Figure 12-5 PDA Alerting Threshold
TERRAIN Inhibit
/,, Ê>ÃÊ >ÃÊ>Ê LÌÊ`iÊÌ >ÌÊ`i>VÌÛ>ÌiÃÊÌ iÊ
/É*ÊÛÃÕ>Ê>iÀÌðÊÊ*ÌÃÊÃ
Õ`ÊÕÃiÊ`ÃVÀiÌÊÜ
iÊ
LÌ}Ê/,, Ê>`Ê>Ü>ÞÃÊÀiiLiÀÊÌÊi>LiÊÌ
iÊ
system when appropriate.
Inhibiting TERRAIN:
1)
Select the TERRAIN Page and press the
MENU
Key. ‘Inhibit Terrain?’ is selected by default
(Figure 12-6).
Figure 12-6 TERRAIN Page Menu
2)
Press the
ENT
Key. The ‘TER INHB’ annunciation
is displayed in the TERRAIN annunciator field
when TERRAIN is inhibited (Figure 12-7).
Annunciator Field
Figure 12-7 Annunciator Field
Enabling TERRAIN:
1)
Select the TERRAIN Page and press the
MENU
Key. ‘Enable Terrain?’ is selected by default.
2)
Press the
ENT
Key. The TERRAIN system is
functional again.
Summary of Contents for GNS 530
Page 1: ...GNS 530 A Pilot s Guide and Reference...
Page 2: ......
Page 10: ...GNS 530 A Pilot s Guide and Reference 190 00181 00 Rev G viii WARRANTY Blank Page...
Page 36: ...GNS 530 A Pilot s Guide and Reference 190 00181 00 Rev G 2 6 SECTION 2 COM Blank Page...
Page 116: ...GNS 530 A Pilot s Guide and Reference 190 00181 00 Rev G SECTION 6 PROCEDURES 6 34 Blank Page...
Page 142: ...GNS 530 A Pilot s Guide and Reference 190 00181 00 Rev G 7 26 SECTION 7 WPT PAGES Blank Page...
Page 190: ...GNS 530 A Pilot s Guide and Reference 190 00181 00 Rev G 10 30 SECTION 10 AUX PAGES Blank Page...
Page 280: ...GNS 530 A Pilot s Guide and Reference 190 00181 00 Rev G I 6 INDEX Blank Page...
Page 281: ......