Garmin 530w Manual

							41
Data Fields on the Map
The “Data Fields On?” option provides a map 
display (shown at right) with five user-selectable data 
fields along the right-hand side of the screen. Select 
this option when you wish to display additional on-
screen data — such as destination waypoint name 
(WPT), desired track (DTK), ground track (TRK), 
distance to destination (DIS) and ground speed (GS). 
If this option has been selected and the data fields 
are being displayed, “Data Fields Off?” appears as an 
option instead. 
“Data Fields On?” adds five user-selectable 
data fields to the right-hand side of the page.  Select “Change Fields?” to change any of  these fields to a different data type. 
To turn the data fields on (or off), turn the large 
right knob to highlight “Data Fields On?” (or 
“Data Fields Off?”) and press ENT. 
Selecting Desired On-Screen Data
“Change Fields?” allows you to choose the data dis-
played on the five user-selectable data fields along the 
right-hand side of the map page (see previous page). 
There are a number of available data types, including 
bearing to destination, distance to destination, esti
-
mated time of arrival, ground speed, minimum safe 
altitude and track. See Section 12 for descriptions of 
these (and other) navigation terms. 
To change a data field: 
1. Press  MENU (with the Map Page displayed). 
2.   Turn the large right knob to highlight 
“Change Fields?” and press ENT. 
Once “Change Fields?” is selected, turn the 
large right knob to highlight the data field 
you wish to change, then turn the small right  knob to select the type of data to display in  that field. 
3.  Turn the large right knob to highlight the 
data field you wish to change. 
4.   Turn the small right knob to select the type 
of data you want to appear on this field and 
press ENT. 
5.   Press the small right knob to remove the 
cursor. 
Data Fields on the Map
2 - NAV PAGES 
190-00357-00 Rev K  
						

							42
 NOTE: The on-screen traffic information (TRFC) oc-
cupies two data fields, leaving room to display only three additional data types. Traffic information is only available when the 500W-series unit installation includes connection to traffic information sources. See the 400W/500W Series Display Interfaces Pilot's Guide Addendum. 
Restoring Factory Settings
“Restore Defaults?” resets all five user-selectable 
data fields to their original factory default settings. 
“Restore Defaults?” resets all five user-se-
lectable data fields to their original factory  settings. 
To restore the factory default settings, turn the 
large right knob to highlight “Restore Defaults?” 
and press ENT. 
Restoring Factory Settings
2 - NAV PAGES 
190-00357-00 Rev K  
						

							43
Terrain Operation
During power-up of the 500W Series unit, the 
terrain/obstacle database versions are displayed along 
with a disclaimer. At the same time, the Terrain system 
self-test begins. A failure message is issued if the test fails.  Garmin TERRAIN is a non-TSO-C151b-certified 
terrain awareness system provided as a standard feature 
of 500W-Series units to increase situational awareness 
and help reduce controlled flight into terrain (CFIT). 
TAWS is an optional feature on 500W-Series units. 
Information on TAWS is provided in the 400W/500W 
Series Optional Displays Addendum, p/n 190-00356-30. 
Operating Criteria
TERRAIN requires the following to operate properly:  •  The system must have a valid 3-D GPS position 
solution. 
•  The system must have a valid terrain/obstacle/air
-
port terrain database. 
Terrain Limitations
 NOTE:  500W-Series units may display either a TERRAIN 
Page or a TAWS Page, (or neither, but not both) depending 
upon the installed hardware and configuration. 
TERRAIN displays terrain and obstructions relative to 
the altitude of the aircraft.  The displayed alerts are advisory 
in nature only. Individual obstructions may be shown 
if available in the database. However, all obstructions 
may not be available in the database and data may be 
inaccurate. Never use this information for navigation or to 
maneuver to avoid obstacles.  Terrain information is based on terrain elevation 
information in a database that may contain inaccuracies.  
Terrain information should be used as an aid to situational 
awareness. Never use it for navigation or to maneuver to 
avoid terrain. 
TERRAIN uses terrain and obstacle information 
supplied by government sources. The data undergoes 
verification by Garmin to confirm accuracy of the content, 
per TSO-C151b. However, the displayed information 
should never be understood as being all-inclusive. 
 NOTE:  The data contained in the TERRAIN databases  comes from government agencies. Garmin accurately processes and cross-validates the data but cannot guarantee the accuracy and completeness of the data.  
TERRAIN Alerting
TERRAIN uses information provided from the GPS 
receiver to provide a horizontal position and altitude.  
GPS altitude is derived from satellite measurements. GPS 
altitude is converted to a mean sea level (MSL)-based 
altitude (GSL altitude) and is used to determine TERRAIN 
alerts. GSL altitude accuracy is affected by factors such 
as satellite geometry, but it is not subject to variations in 
pressure and temperature that normally affect pressure 
altitude devices. GSL altitude does not require local 
altimeter settings to determine MSL altitude. Therefore, 
GPS altitude provides a highly accurate and reliable MSL 
altitude source to calculate terrain and obstacle alerts.  TERRAIN utilizes terrain and obstacle databases that are 
referenced to mean sea level (MSL). Using the GPS position 
and GSL altitude, TERRAIN displays a 2-D picture of the 
surrounding terrain and obstacles relative to the position 
and altitude of the aircraft. Furthermore, the GPS position 
and GSL altitude are used to calculate and “predict” the 
aircraft’s flight path in relation to the surrounding terrain 
and obstacles. In this manner, TERRAIN can provide 
advanced alerts of predicted dangerous terrain conditions. 
Detailed alert modes are described later in this section. 
Terrain Operation
2 - NAV PAGES 
190-00357-00 Rev K  
						

							44
Baro-Corrected Altitude
Baro-corrected altitude (or indicated altitude) is derived 
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 
path. However, because actual atmosphere conditions 
seldom match the standard conditions defined by the 
International Standard Atmosphere (ISA) model (where 
pressure, temperature, and lapse rates have fixed values), 
it is common for the baro-corrected altitude (as read 
from the altimeter) to differ from the GSL altitude. This 
variation results in the aircraft’s true altitude differing from 
the baro-corrected altitude. 
Terrain Page 
To display the Terrain Page, select the NAV group 
and turn the small right knob until the Terrain Page 
is displayed. The page displays terrain information, 
aircraft ground track, and GPS-derived MSL altitude 
(GSL altitude). Altitude is shown in increments of 20 
feet or in increments of 10 meters, depending on unit 
configuration. 
For units with TAWS or installed in helicopters or 
equipped with optional HTAWS, refer to 400W/500W 
Series Garmin Optional Displays, P/N 190-00356-30 
Rev G, or later. 
The Terrain Page has two selectable view settings: 
•  360˚ View—View from above aircraft depicting 
surrounding terrain on all sides 
•  120˚ View—View of terrain ahead of and 60˚ to 
either side of the aircraft flight path 
TERRAIN Page with 360° View
 NOTE:  The Terrain Page gives a “Track Up” display 
orientation, as indicated by the “TRK” label shown on the display. This is the only orientation available on this page. 
To display a 120˚ view: 
1.   Select the Terrain Page and press MENU. 
2.   Select “View 120˚?”. 
3.  Press  ENT. To switch back to a 360˚ view, 
repeat step 1, select “View 360˚?”, and press 
ENT. 
Seven display ranges are available, allowing for a 
more complete view of the surrounding area. 
To change the display range: 
1.   Select the Terrain Page and press up or down 
on the  RNG key to select the desired range:   
1 NM, 2 NM, 5 NM, 10 NM, 25 NM, 50 NM, 
100 NM. 
Aviation information such as airports, VORs, and 
other navaids can be turned on or off from the Terrain 
Page. 
“Show Aviation Data?” Menu  Selection
Terrain Operation
2 - NAV PAGES 
190-00357-00 Rev K  
						

							45
To show or hide aviation data:
1.  Select the Terrain Page and press MENU. 
2.   Select “Show (or Hide) Aviation Data” and 
press  ENT. Pressing the  CLR key when the 
TERRAIN Page is displayed will also toggle 
aviation information on or off. 
Inhibit Mode
The Garmin Terrain system provides an “inhibit 
mode”. This mode is designed to deactivate Premature 
Descent Alert/Forward Looking Terrain Avoidance 
(PDA/FLTA) visual alerts when they are deemed 
unnecessary by the pilot. Flying VFR into an area 
where unique terrain exists could cause the system 
to annunciate a nuisance alert. Pilots should use 
discretion when inhibiting the TERRAIN system 
and always remember to enable the system when 
appropriate. When Terrain is inhibited, the terrain 
page will still be active, but alerts and messages will 
not be generated. See the Terrain Alerts section for 
more information on terrain alerts.  TERRAIN configured units will restore the “inhibit 
state” at startup to the last pilot-selected setting. TAWS 
configured units will always start up with TAWS alerts 
uninhibited. 
Inhibiting Terrain
To  inhibit Terrain:
1.   Select the Terrain Page and press MENU. 
“Inhibit Terrain?” is selected by default. 
2.  Press  ENT. The Terrain system is inhibited.  The 
 annunciation is displayed in the 
terrain annunciator field whenever terrain is 
inhibited. 
To  enable TERRAIN: 
Enabling Terrain
1.   Select the Terrain Page and press MENU.  
“Enable Terrain?” is selected by default. 
2.  Press  ENT. The 
Terrain system is functional 
again. 
Terrain Operation
2 - NAV PAGES 
190-00357-00 Rev K   
						

							46
Terrain Symbols
The following symbols are used to represent 
obstacles and potential impact points on the Terrain 
Page. Note that obstacle symbols are shown on display 
zoom ranges up to 10 
NM: 
The Garmin TERRAIN system uses yellow (cau
-
tion) and red (warning) to depict terrain information 
relative to aircraft altitude. Each color is associated 
with an alert severity level. Terrain graphics and visual 
annunciations also use these color assignments. 
 NOTE:  If an obstacle and the projected flight path of  the aircraft intersect, the display automatically zooms in to the closest potential point of impact on the TERRAIN 
Page. 
General Database Information
The Garmin TERRAIN system uses terrain and 
obstacle information supplied by government sources. 
The data undergoes verification by Garmin to confirm 
accuracy of the content, per TSO-C151b. However, the 
information displayed should never be understood to 
be all-inclusive. Pilots must familiarize themselves 
with the appropriate charts for safe flight. 
 NOTE:  The data contained in the terrain and obstacle  databases comes from government agencies. Garmin accurately processes and cross-validates the data, but cannot guarantee the accuracy and completeness of the data. 
The terrain/obstacle databases are contained on a 
datacard which is inserted in the right-most slot of the 
500W Series units.  
Terrain Operation
Potential Impact Point
Unlighted Obstacle
Projected Flight Path
1000 ft 
100 ft Threshold 
Te
rrain more than 1000 ft below the aircraft altitude (Black) Te
rrain between 100 ft and 1000 ft below the 
aircraft altitude (Y ellow)
Terrain above or
 within 100 ft 
below the aircraft
altitude (Red)
 
TERRAIN Altitude/Color  Correlation
Obstacle Symbol
Unlighted Obstacle Lighted ObstacleColor
(Alert Level) TERRAIN/Obstacle  
Location
<  1000’ AGL >  1000’ AGL<  1000’ AGL>  1000’ AGL
Red
(Warning)
Terrain/Obstacle above or 
within 100 ft below current 
aircraft altitude 
Yellow
(Caution)Terrain/Obstacle between 
100 ft and 1000 ft below the 
aircraft altitude 
Terrain Color Symbology
2 - NAV PAGES 
190-00357-00 Rev K  
						

							47
Database Versions
The version and area of coverage of each ter-
rain/obstacle database is shown on the Terrain Data-
base Versions Page, located in the AUX Page Group. 
Databases are checked for integrity at power-up. If a 
database is found to be missing and/or deficient, the 
Terrain system fails the self-test and issues a failure 
message. 
Terrain Database Information
Database Updates
Terrain/Obstacle databases are updated periodi-
cally with the latest terrain and obstacle data. Visit the 
Garmin website to check for newer versions of terrain/
obstacle databases. Compare database cycle numbers 
to determine if a newer version is available. The database update process includes either 
reprogramming or replacing the database card and 
inserting the updated card in the right card slot on the  unit front panel. The terrain/obstacle database may 
be downloaded via the intenet and the card repro
-
grammed using a USB programmer available from 
Garmin. Contact Garmin at 800-800-1020 or at www.
garmin.com for more information. 
To update the terrain or obstacle database:
1.
  Acquire a new terrain data card from 
Garmin. 
2.   Turn off the power to the 500W Series unit. 
3.   Remove the old terrain data card from and 
insert the new card into the right-most slot of 
the 500W Series unit. 
4.   Turn on the 500W Series unit and verify that the 
TERRAIN system passes the self-test. The “TER 
TEST” annunciator will clear after checking and 
no failure message appears. 
Terrain Operation
2 - NAV PAGES 
190-00357-00 Rev K  
						

							48
Terrain/Obstacle Database Areas of Coverage
The following describes the area of coverage avail-
able in each database. Regional definitions may change 
without notice. 
DatabaseCoverage Area
Worldwide (WW) Latitudes:  N 75° to S 60°
 
Longitudes: W 180° to E 180° 
United States (US) Limited to the United States plus 
some areas of Canada, Mexico, 
Caribbean, and the Pacific. 
US/Europe Alaska, Austria, Belgium, Canada*, 
Caribbean*, Czech Republic, 
Denmark, Estonia, Finland, France, 
Germany, Greece, Hawaii, Iceland, 
Ireland, Italy, Latvia, Lithuania, 
Mexico*, Netherlands, Norway, 
Poland, Portugal, Slovakia, Spain, 
Sweden, Switzerland, United 
Kingdom, United States 
* Indicates partial coverage
 CAUTION:  Obstacles 200 feet and higher are included  in the Obstacle Database. It is very important to note that not all obstacles are necessarily charted and there
-
fore may not be contained in the Obstacle Database. 
Navigation Database
It is therefore important to also have the latest 
Navigation Database installed to ensure correct Terrain 
alerting. 
TERRAIN Alerts
TERRAIN alerts are issued when flight conditions 
meet parameters that are set within the TERRAIN 
system software algorithms. When an alert is issued, 
visual annunciations are displayed. Annunciations 
appear in a dedicated field in the lower left corner of 
the display. 
Pop-up Terrain Alert
TERRAIN Annunciation  Field
Pop-up Alerts
On any page except the TERRAIN Page, when a 
terrain or obstacle alert is issued, a pop-up window is 
displayed with the appropriate alert. 
To acknowledge the pop-up alert and return to 
the currently viewed page: 
Press the CLR key. 
To acknowledge the pop-up alert and quickly 
display the TERRAIN Page: 
Press the ENT key. 
Terrain Alerts
2 - NAV PAGES 
190-00357-00 Rev K    
						

							49
Forward  Looking Terrain Avoidance
The unit will issue terrain alerts not only when the 
aircraft altitude is below the terrain elevation but also 
when the aircraft is projected to come within minimum 
clearance values of the terrain. This alerting, called 
Forward Looking Terrain Avoidance (FLTA), is also pro
-
vided for obstacles. Any potential impact points will be 
depicted on the display. 
FLTA Severity Levels
“TERRAIN AHEAD” alert (flashing)—Similarly, an  “OBSTACLE AHEAD’’ alert is also provided. 
“TERRAIN ADVISORY” advisory—Similarly, an 
“OBSTACLE ADVISORY” alert is also provided. 
Phase of Flight Level FlightDescending
En Route 700 ft.500 ft.
Terminal 350 ft. 300 ft.
Approach 150 ft.100 ft.
Departure 100 ft.100 ft. 
Minimum Terrain  Clearance Values
 NOTE: During the final approach phase of flight, FLTA 
alerts are automatically inhibited when the aircraft is below 200 feet AGL while within 0.5 NM of the ap
-
proach runway or is below 125 feet AGL while within 
1.0 NM of the runway. 
Premature Descent Alerting (PDA)
The TERRAIN system issues a Premature Descent 
Alert (PDA) when the system detects that the aircraft 
is significantly below the normal approach path to a 
runway. 
  PDA ends when the aircraft is either:   
•  0.5 NM from the runway threshold  
OR  
•  is below an altitude of 125 feet AGL while within  
   1.0 NM of the threshold. 
CAUTION — The above annunciation and pop-up 
terrain alert are displayed during a PDA alert. 
PDA Severity Levels
Terrain Alerts
2 - NAV PAGES 
190-00357-00 Rev K  
						

							50
TERRAIN  Failure Alert
The TERRAIN system continually monitors 
several system-critical items, such as database validity, 
hardware status, and GPS status. Should the system 
detect a failure, a message is annunciated “TERRAIN 
has failed”. 
“TERRAIN has failed” message
“TERRAIN  Not Available” Alert
The TERRAIN system requires a 3D GPS 
navigation solution along with specific vertical 
accuracy minimums. Should the navigation solution 
become degraded, or if the aircraft is out of the 
database coverage area, the annunciation “TERRAIN 
NOT AVAILABLE” is displayed on the TERRAIN Page. 
“TERRAIN NOT AVAILABLE” display
Terrain Alerts
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
PDA Alerting Area PDA Alerting Area
Runway
Threshold
Premature  Descent Alerting  (PDA) Threshold
2 - NAV PAGES 
190-00357-00 Rev K