Page 2 - Foreword; Garmin; • GDL 49 Main Software Version 2.03; Revision E
Foreword Garmin ® is a registered trademark, and GTX™ and GDL™ are trademarks of Garmin Ltd. or its subsidiaries and may not be used without the express permission of Garmin. This Pilot’s Guide Addendum is written for: • Garmin GPS 400, GNC 420/420A, and GNS 430/430A Main System Software Version 5...
Page 3 - Terrain data must not be used for navigation.
i INTRODUCTION Warnings and Cautions W ARNING: Terrain data is obtained from third party sources. Garmin is not able to independently verify the accuracy of this data which should be used only as an aid for situational awareness. Ter- rain data must not be used as the sole basis for de...
Page 4 - ii; Introduction; Contents; PART TWO: WEATHER DATA LINK INTERFACE
ii Introduction Table of Contents Contents PART ONE: TRAFFIC INFORMATION SERVICE (TIS) INTERFACE Section 1: TIS Operation and Symbology .....................................................................................1 TIS Operation ..................................................................
Page 5 - iii; INTRODUCTION
iii INTRODUCTION Table of Contents Section 2: NEXRAD Overview .....................................................................................................12 NEXRAD Description ......................................................................................................................
Page 6 - iv; PART THREE: TERRAIN INTERFACE
iv Introduction Table of Contents Section 5: Temperature, Dewpoints, and Winds .........................................................................24 Displaying Temperature/Dewpoints .................................................................................................... 24Displayin...
Page 7 - PART FOUR: TAWS INTERFACE
v INTRODUCTION Table of Contents TERRAIN/Obstacle Database Areas of Coverage ................................................................................. 36Navigation Database ..........................................................................................................................
Page 9 - TRAFFIC INFORMATION SERVICE (TIS) INTERFACE; Section 1: TIS Operation and Symbology; TIS Operation
1 Section 1 TIS Operation and Symbology PART ONE : TRAFFIC INFORMATION SERVICE (TIS) INTERFACE Section 1: TIS Operation and Symbology TIS Operation NOTE: Part One of this Addendum assumes the user has experience operating the 400/500 Series units and the Garmin GTX 330 Transponder. The Traffic Info...
Page 10 - TIS Limitations; TIS will be unavailable at low
2 Section 1 TIS Operation and Symbology TIS Limitations NOTE: This section on TIS Limitations is not comprehensive. Garmin recommends the user review the TIS Limitations section of the Aeronautical Information Manual, Section 1-3-5. TIS is NOT intended to be used as a collision avoidance system and ...
Page 12 - TIS Symbology
4 TIS Operation and Symbology Section 1 TIS Symbology TIS traffic is displayed on the 400/500 Series unit according to TCAS symbology, graphically displayed on a dedicated graphical page (Traffic Page; see below), and on the moving Map Page. A Traffic Advisory (TA) symbol appears as a solid yellow circ...
Page 13 - Section 2: Control and Display; TIS Traffic Display Status and Pilot Response; system is in standby mode and cannot display traffic data.; Traffic Age Indication showing “traffic coasting”.
5 Section 2 Controls and Display Section 2: Control and Display TIS Traffic Display Status and Pilot Response • STBY — When the 400/500 displays STBY in the upper right hand corner of the display the TIS system is in standby mode and cannot display traffic data. • OPER — When the 400/500 displays OPER...
Page 14 - Traffic Ground Track; extending in the direction of target movement.; ENT; Traffic Page; To change the display range on the Traffic Page:; RNG; Traffic Warning Window
6 Section 2 Controls and Display Traffic Ground Track Traffic ground track is indicated in the 400/500 display by a “target track vector”, a short line displayed in 45-degree increments, extending in the direction of target movement. Traffic Warning Window When the unit is on any page (other than the N...
Page 15 - Map Page; To configure TIS traffic on the Map Page:; The Map Page displaying traffic.
7 Controls and Display Section 2 Map Page TIS traffic is displayed on the Map Page in addition to the Traffic Page. Configuring TIS Traffic Data on the Map Page To configure TIS traffic on the Map Page: 1. Turn the small right knob to select the Map Page. 2. Press the MENU key. Turn the small right knob t...
Page 16 - Highlighting TIS Traffic Using Map Page Panning; small right knob; to activate the panning target pointer.; small right knob
8 Controls and Display Section 2 Highlighting TIS Traffic Using Map Page Panning Another Map Page feature is panning, which allows you to move the map beyond its current limits without adjusting the map scale. When you select the panning function — by pressing the small right knob — a target pointer ...
Page 17 - Section 3: TIS Operational Procedures; The TIS interface performs an automatic test during power-up.
9 TIS Operational Procedures Section 3 Section 3: TIS Operational Procedures Introduction TIS warns the user with voice and visual traffic advisories whenever it predicts an intruder to be a threat (see sidebar). The user should not start evasive maneuvers using information from the 400/500 display o...
Page 18 - Manual Override; manually override automatic operation.; ‘DATA FAIL’ Message
10 TIS Operational Procedures Section 3 Manual Override The user can manually switch between standby (STBY) and operating (OPER) mode of operation to manually override automatic operation. To place the display into operating mode from the standby mode (to display TIS traffic): 1. Turn the cursor on a...
Page 19 - WEATHER DATA LINK INTERFACE; Section 1: Introduction; Weather Products; Weather Data Link interface:; aviation and emergency management needs for real-time
11 Introduction Section 1 PART TWO: WEATHER DATA LINK INTERFACE Section 1: Introduction The Garmin 400/500 Series units provides the display and control interface for the textual and graphi- cal weather data link. For the GDL 49, satellite up-linked textual and graphical weather data is received on ...
Page 20 - Section 2: NEXRAD Overview; NEXRAD Description; storms directly over the site.
12 Section 2 NEXRAD Overview Section 2: NEXRAD Overview NEXRAD Description WSR-88D weather surveillance radar or NEXRAD (NEXt generation RADar) is a Doppler radar system that has greatly improved the detection of meteorological events such as thunderstorms, tornadoes, and hurricanes. An extensive ne...
Page 21 - NEXRAD Intensity; Table 2-1 NEXRAD Intensity Colors
13 Section 2 NEXRAD Overview NEXRAD Intensity Colors are used to identify the different NEXRAD echo intensities (reflectivity) measured in dBZ (decibels of Z). “Reflectivity” (designated by the letter Z) is the amount of transmitted power returned to the radar receiver. The dBZ values increase as retu...
Page 22 - Section 3: NEXRAD Operation; Requesting NEXRAD Data; NEXRAD data can be requested from the Data Link Page or the Map Page.; CRSR; Center
14 Section 3 NEXRAD Operation Section 3: NEXRAD Operation Requesting NEXRAD Data NEXRAD data can be requested from the Data Link Page or the Map Page. To request NEXRAD data from the Data Link Page: 1. Select the Data Link Page from the AUX Page Group.2. Press CRSR . ‘NexRAD REQUEST’ is highlighted....
Page 23 - This field is used to request NEXRAD; Requesting NEXRAD data from the Map Page.
15 Section 3 NEXRAD Operation NOTE: It is recommended that the pilot turn the Auto Request function ‘on’ by setting it to ‘10 min’ updates. This setting provides best performance for the GDL 49. There is no Auto Request function for GDL 69. Instead, weather data is updated automati-cally as it becom...
Page 24 - following messages depending on the type of data received:; New NEXRAD Received; Displaying NEXRAD Data on the Weather Page; To select the Weather Page from the Data Link Page:; large right knob; To customize the NEXRAD data on the Weather Page:; MENU; to display the NAV Weather Page Options Menu.; — There are two viewing options available, each shown relative to
16 Section 3 NEXRAD Operation Data Received Message (GDL 49 Only) When the request has been answered, the message annunciator (MSG) will flash to alert you to one of the following messages depending on the type of data received: • New NEXRAD Received • New Graphic METAR Received • New Text METAR Rece...
Page 25 - Displaying NEXRAD Data on the Map Page; the default NAV Page.; Customizing NEXRAD Data on the Map Page; You can customize NEXRAD data on the Map Page by using the Page Menu.
17 Section 3 NEXRAD Operation Displaying NEXRAD Data on the Map Page When NEXRAD data is received, it is displayed on the Map Page, in addition to the Weather Page and the default NAV Page. Customizing NEXRAD Data on the Map Page You can customize NEXRAD data on the Map Page by using the Page Menu. ...
Page 26 - Displaying NEXRAD Data on the Default NAV Page (500 Series Only); Page and the Map Page.; to the left until the default NAV Page is selected, OR, press; Customizing NEXRAD Data on the Default NAV Page (500 Series Only); Airport Location Page.; and select the Airport Location Page from the WPT Group of pages.
18 Section 3 NEXRAD Operation Displaying NEXRAD Data on the Default NAV Page (500 Series Only) When NEXRAD data is received, it is displayed on the default NAV Page, in addition to the Weather Page and the Map Page. To select the Default NAV Page from the Data Link Page: 1. Turn the large right knob...
Page 27 - received, a check mark is placed in the box.; . The ‘Position Report’ Page is displayed with the following six
19 Section 3 NEXRAD Operation Data Link Request Log Page (GDL 49 Only) The Data Link Request Log Page is used to display the data that was requested. When a request is received, a check mark is placed in the box. Sending Position Reports (GDL 49 Only) The Data Link allows for accurate location track...
Page 28 - Section 4 : METAR Operation; Requesting Graphical METARS; To request Graphical METARS from the Data Link Page:; available if ‘From ID’ is selected.; Note: Textual METARS can only be
20 Section 4 METAR Operation Section 4 : METAR Operation Requesting Graphical METARS Graphical METAR Data can be requested from the Data Link Page, Map Page, or Airport Page. To request Graphical METARS from the Data Link Page: 1. Select the Data Link Page.2. Press CRSR . Turn the small right knob a...
Page 29 - The request has been sent.; Displaying Graphical METARS on the NAV Weather Page; To display Graphical METARS on the NAV Weather Page:; . The upper left hand corner field flashes.
21 Section 4 METAR Operation 4. Enter the type of METAR Data you desire and the desired radius (graphical requests only).5. Select Manual Send? and press ENT. The request has been sent. Once received, Graphical METAR data is displayed on the NAV Weather Page. Displaying Graphical METARS on the NAV W...
Page 30 - Wind data displayed on the NAV Weather Page.; Weather Legend Page; To display the Weather Legend Page:; highlight ‘Display Legend’, and press ENT. The Weather Legend Page is; and scroll through the various; to return to the Weather Page.; The following symbology is shown for the various types of data:; Age of Data in Minutes
22 Section 4 METAR Operation Look at the Weather Legend Page for a description of the Temperature, Dew Point, and Wind symbology. Wind data displayed on the NAV Weather Page. Weather Legend Page The symbology unique to Graphical METAR, Winds, and Temperature/Dew Point data is displayed on the Weathe...
Page 31 - Displaying Textual METARS; To select the METARS Text Page:; identifier on the Textual METAR Page.; To enter an identifier:; Select the Data Link Page. Highlight ‘TEXTUAL METAR’ and press; and scroll through the list of four letter identifiers.; key to access the page
23 Section 4 METAR Operation Displaying Textual METARS Once received, Textual METARS are displayed on the METARS Text Page. To select the METARS Text Page: 1. Select the Data Link Page.2. Select ‘Textual Metar’.3. Press ENT . The Textual METAR Page is displayed for the airport you selected. You can ...
Page 32 - Section 5; Displaying Temperature/Dewpoints; Temperature/Dewpoints are displayed on the NAV Weather Page.; . The upper left hand corner data field flashes.; . The Temperature/Dewpoints are displayed on the NAV Weather Page.; Displaying Wind Data; To display wind data on the NAV Weather Page:; The upper left hand corner field flashes.; . The wind icons are displayed on the NAV Weather Page.
24 Section 5 Temperature, Dewpoints, and Winds Section 5: Temperature, Dewpoints, and Winds Displaying Temperature/Dewpoints Temperature/Dewpoints are displayed on the NAV Weather Page. To display Temperature/Dewpoints on the NAV Weather Page: 1. Select the NAV Weather Page.2. Press CRSR . The upper...
Page 33 - Section 6: Troubleshooting; Monitoring the Data Link; To view the Data Link Status Page:; The Data Link Status Page is displayed.
25 Section 6 Troubleshooting Section 6: Troubleshooting Although it is the responsibility of the facility that installed the GDL 49 or GDL 69/69A to correct any hardware problems, you can perform some quick troubleshooting steps to find the possible cause of a failure. First, ensure that the owner/op...
Page 34 - GDL 49 Datalink Status; sent to the satellite.
26 Section 6 Troubleshooting GDL 49 Datalink Status • TX Queue — Shows the number of requests in the GDL 49’s transmit queue waiting to be sent to the satellite. • RX Queue — Shows the number of responses in the GDL 49’s receive queue waiting to be sent to the 400/500 Series. • Sat ID/Connectivity —...
Page 35 - Sat ID Field
27 Section 6 Troubleshooting GDL 69/69A Datalink Status • Sat ID/Connectivity — This field shows the current activation status and signal strength of the XM Satellite Radio weather service. The Sat ID/Connectivity field shows the following: Sat ID Field ‘--’ GDL 69/69A - 400/500 Series interface commu...
Page 36 - This page intentionally left blank
28 Section 6 Troubleshooting This page intentionally left blank
Page 37 - PART THREE; Overview; • The system must have a valid 3D GPS position solution; GPS Position and GPS-MSL Altitude
29 Section 1 Introduction Figure 1-1: The Garmin TERRAIN system offers many of the features of Garmin TAWS but is non-TSO- C151b-certified. PART THREE TERRAIN INTERFACE Section 1: Introduction Overview Garmin TERRAIN is a non-TSO-C151b-certified terrain awareness system incorporated into 400/500 Serie...
Page 38 - TERRAIN Alerting using the GPS Position/GPS-MSL Altitude
30 Section 1 Introduction TERRAIN Alerting using the GPS Position/GPS-MSL Altitude The Garmin TERRAIN system utilizes terrain and obstacle databases that are referenced to Mean Sea Level (MSL). Using the GPS Position and GPS-MSL Altitude, Garmin TERRAIN portrays a 2D picture of the surrounding terra...
Page 39 - Limitations
31 Section 1 Introduction When an instrument approach is loaded in the active flight plan, the PDA function can provide a greater margin of safety by alerting for altitude deviations below minimum approach altitudes. Minimum altitudes are typically known for the segment prior to the final approach fix ...
Page 40 - Section 2: TERRAIN Operation; Power Up; Select the TERRAIN Page and press
32 Section 2 TERRAIN Operation Figure 2-1: Power-up Sequence Figure 2-2: TERRAIN Page Section 2: TERRAIN Operation Power Up During power-up of the 400/500 Series unit, the terrain/obstacle database versions are displayed along with a disclaimer (Figure 2-1). At the same time, the TERRAIN system self...
Page 41 - To change the display range:; Inhibit Mode
33 Section 2 Terrain Operation 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. Aviati...
Page 42 - Color; TERRAIN Symbols
34 Section 2 TERRAIN Operation Color Terrain/Obstacle Location Red Terrain/Obstacle is within 100’ or above aircraft altitude. Yellow Terrain/Obstacle is within 1000’ of aircraft altitude. Black Terrain/Obstacle is more than 1000’ below aircraft altitude. To enable TERRAIN: 1. Select the TERRAIN Pag...
Page 43 - General Database Information; To update the terrain or obstacle database:
35 Section 2 TERRAIN Operation 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. How- ever, the information displayed should never be ...
Page 44 - Terrain/Obstacle Database Areas of Coverage; change without notice.; Navigation Database
36 Section 2 TERRAIN Operation Section 2 Terrain/Obstacle Database Areas of Coverage The following describes the area of coverage available in each database. Regional definitions may change without notice. CAUTION: Obstacles 200’ and higher are included in the Obstacle Database. It is very important ...
Page 45 - Nearest Airport Criteria & Terrain Phase of Flight; Figure 2-8: Nearest Airport Criteria Page
37 Section 2 TERRAIN Operation Nearest Airport Criteria & Terrain Phase of Flight Changes to the Nearest Airport Criteria Page (Figure 2-8) affect how the TERRAIN system performs. The nearest airport list is used to derive the terrain destination airport when there is no loaded active flight plan...
Page 46 - TERRAIN Annunciation Field; Section 3: TERRAIN Alerts; CLR
38 Section 3 TERRAIN Alerts Figure 3-2: Pop-up Terrain Alert Figure 3-1: TERRAIN Annunciation Field TERRAIN Annunciation Field Section 3: 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...
Page 47 - Forward Looking Terrain Avoidance; posed of two elements:; Phase of Flight; Table 3-1: Minimum Terrain Clearance Values for RTC/ITI Alerts; RTC/ITI TERRAIN Severity
39 Section 3 TERRAIN Alerts Forward Looking Terrain Avoidance The Forward Looking Terrain Avoidance alert, or FLTA, is used by the TERRAIN system and is com- posed of two elements: • Reduced Required Terrain Clearance (RTC) Avoidance — Provides alerts when the aircraft flight path is above terrain, y...
Page 48 - CAUTION; PDA Severity Levels; Figure 3-4: An example of a PDA alert threshold for an ILS
40 Section 3 TERRAIN Alerts Premature Descent Alerting (PDA) The TERRAIN system issues a Premature Descent alert when the system detects that the aircraft is significantly below the normal approach path to a runway. There are three different scenarios to consider with PDA: •No Approach Loaded—PDA ale...
Page 49 - TERRAIN Failure Alert; Figure 3-6: ‘TERRAIN NOT AVAILABLE’ display
41 Section 3 TERRAIN Alerts 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’ (Figure 3-5). ‘TERRAIN Not Available’...
Page 50 - TERRAIN Alert Summary; Alert Type
42 Section 3 TERRAIN Alerts TERRAIN Alert Summary Table 3-2 summarizes the TERRAIN alerts. Table 3-2: TERRAIN Alerts Summary Alert Type Annuciation Pop-Up Alert TERRAIN Failure None TERRAIN Inhibited None TERRAIN Not Available None Required Terrain Clearance (RTC) AdvisoryRequired Terrain Clearance ...
Page 51 - PART FOUR
43 Section 1 Introduction Figure 1-1: Garmin TAWS satisfies TSO-C151b Class B requirements for certification PART FOUR TAWS INTERFACE Section 1: Introduction Overview Garmin’s Terrain Awareness Warning System (TAWS) is an optional feature for the GPS 500 and GNS 530/530A to increase situational awaren...
Page 52 - TAWS Alerting using the GPS Position/GPS-MSL Altitude
44 Section 1 Introduction TAWS Alerting using the GPS Position/GPS-MSL Altitude Garmin TAWS utilizes terrain and obstacle databases that are referenced to Mean Sea Level (MSL). Using the GPS Position and GPS-MSL Altitude, Garmin TAWS portrays a 2D picture of the surrounding terrain and obstacles rel...
Page 54 - Section 2: TAWS Operation; TAWS System Test, OK’; TAWS Page
46 Section 2 TAWS Operation Figure 2-1: The TAWS Page Section 2: TAWS Operation Power Up During power-up of the 500 Series unit, the terrain/obstacle database versions are displayed along with a disclaimer to the pilot. At the same time, TAWS self-test begins. TAWS gives the following aural messages...
Page 55 - Viewing Angle on the TAWS Page; To display a 120 ̊ view:; Select the TAWS Page and press; Select the TAWS Page and press up or down on the; To show or hide aviation information:; key when the TAWS Page is
47 Section 2 TAWS Operation Figure 2-2: 120 ˚ Viewing Angle on the TAWS Page Figure 2-3: Aviation Data To display a 120˚ view: 1. Select the TAWS Page and press MENU . Select ‘View 120˚?’. 2. Press ENT . The TAWS Page displays the 120˚ view (Figure 2-2) . To change to a 360˚ view, repeat step 1, sel...
Page 57 - TAWS Manual Test; visual annunciations of the system prior to a flight.; ” if the system passes the test.
49 Section 2 TAWS Operation TAWS Manual Test Garmin TAWS provides a manual test capability which verifies the proper operation of the aural and visual annunciations of the system prior to a flight. To manually test the TAWS system: 1. Select the TAWS Page and press MENU . 2. Select the ‘Test Terrain?’...
Page 58 - TAWS Symbols; Unlighted Obstacles
50 Section 2 TAWS Operation TAWS Symbols The symbols depicted in Figure 2-6 are used to represent obstacles and potential impact points on the TAWS Page. Note that obstacle symbols are shown on display zoom ranges up to 10 nm. Color Interpretation Garmin TAWS uses black, yellow, and red to depict te...
Page 59 - However, the displayed; Database Versions; To update your terrain/obstacle databases:
51 Section 2 TAWS Operation General Database Information Garmin TAWS uses terrain and obstacle information supplied by government sources. The data under- goes verification by Garmin to confirm accuracy of the content, per TSO-C151b. However, the displayed information should never be understood as bei...
Page 60 - It is therefore impor-
52 Section 2 TAWS Operation Terrain/Obstacle Database Areas of Coverage The following describes the area of coverage available in each database. Regional definitions may change without notice. NOTE: Obstacles 200’ and higher are included in the Obstacle Database. It is very impor-tant to note that no...
Page 61 - Nearest Airport Criteria & TAWS Phase of Flight; Figure 2-9 Nearest Airport Criteria Page
53 Section 2 TAWS Operation Nearest Airport Criteria & TAWS Phase of Flight Changes to the Nearest Airport Criteria Page (Figure 2-9) affects how TAWS performs. The nearest air- port list is used to derive the TAWS destination airport when there is no loaded active flight plan or when off the act...
Page 62 - TAWS Annunciation Field; Section 3: TAWS Alerts; To acknowledge the pop-up alert and quickly access the TAWS Page:
54 Section 3 TAWS Alerts Figure 3-1: TAWS Annunciation Field TAWS Annunciation Field Section 3: TAWS Alerts Alerts are issued when flight conditions meet parameters that are set within TAWS software algorithms. TAWS alerts typically employ either a CAUTION or a WARNING alert severity level, or both. ...
Page 63 - Reduced Required Terrain Clearance (RTC) Avoidance; Table 3-1: Minimum TERRAIN Clearance Values for RTC/ITI Alerts; RTC/ITI Severity Levels
55 Section 3 TAWS Alerts Forward Looking Terrain Avoidance The Forward Looking TERRAIN Avoidance alert, or FLTA, is used by TAWS and is composed of two elements: Reduced Required Terrain Clearance (RTC) Avoidance — Provides alerts when the aircraft flight path is above terrain, yet is projected to co...
Page 64 - Figure 3-3: An example of a PDA alert threshold for an ILS approach
56 Section 3 TAWS Alerts Premature Descent Alerting (PDA) Garmin TAWS issues a Premature Descent alert when the system detects that the aircraft is significantly below the normal approach path to a runway. There are three different scenarios to consider with PDA: • No Approach Loaded—PDA alerting beg...
Page 65 - Excessive Descent Rate Severity Levels; Pull Up; IN; Figure 3-4 Excessive Descent Rate Graph
57 Section 3 TAWS Alerts Excessive Descent Rate Alert (EDR) The purpose of the Excessive Descent Rate alert is to provide suitable alerts when the aircraft is deter- mined to be closing (descending) upon terrain at an excessive speed. Figure 3-4 shows the parameters for the alert as defined by TSO-C1...
Page 66 - Section 3; Negative Climb Rate After Takeoff Alert (NCR); Figure 3-5 shows the NCR alerting parameters as defined by TSO-C151b.
58 The ‘Don’t Sink’ pop-up terrain alert accompanies the aural message for the NCR alert. The aural message “ Don’t Sink ” or “ TOO LOW, TERRAIN ” is issued also. Section 3 TAWS Alerts Negative Climb Rate After Takeoff Alert (NCR) The purpose of the Negative Climb Rate After Takeoff alert (also refe...
Page 67 - Figure 3-8: ‘TERRAIN NOT AVAILABLE’ Display; ‘Five-Hundred’ Aural Alert; pany the aural message.; TAWS Failure Alert; ‘TAWS System Failure’; TAWS Not Available Alert; Terrain Not
59 Section 3 TAWS Alerts Figure 3-7: ‘TERRAIN FAILED’ Display Figure 3-8: ‘TERRAIN NOT AVAILABLE’ Display ‘Five-Hundred’ Aural Alert The purpose of the aural alert message ‘Five-hundred’ is to provide an advisory alert to the pilot that the aircraft is five-hundred feet above terrain. When the aircra...
Page 68 - TAWS Alert Summary; Table 3-2 TAWS Alerts Summary
60 Section 3 TAWS Alerts TAWS Alert Summary The aural alert voice gender is configurable to be either male or female. Also, there are different alert text phrases available for several of the alerts, as summarized in Table 3-2. See your Garmin installer for further information on configuring the alert...
Page 71 - Standard Aviation Forecast Abbreviations
63 Appendix A Forecast Abbreviations Standard Aviation Forecast Abbreviations CLR – Sky clear CIG – Ceiling FEW – Few clouds ‘+’ – (Heavy) BR – Light fog BLO – Below FZ – Freezing ‘/’ – (Missing or separator) SCT – Scattered clouds AFT – After FG – Thick fog G – Gusts TS – Thunderstorm OBSCD – Obscu...
Page 72 - METAR Graphics; Precipitation Graphics
64 Graphical METAR Symbology Appendix A METAR Graphics The following age symbols are common to METARs, Winds, and Temperature/Dewpoint graphics.: METAR, Winds, and Temperature/Dewpoints Age Graphics 0 — 10 minutes(Green) 11 — 20 minutes(Green) 21 — 30 minutes(Green) 31 — 60 minutes(Green) 61+ minute...
Page 73 - Winds; Wind Speed
65 Appendix B Graphical METAR Symbology Winds Wind Vector — The wind vector indicates the direction of the surface wind to the nearest 30˚ incre- ment (e.g. 30˚, 60˚, 90˚, 120˚, etc). Wind Speed — In general, the sum of the wind barbs is the sustained surface wind speed. Wind Speed (Blank) Unkown Sh...
Page 74 - Temperature - Dew Points; shown in degrees Fahrenheit.; Temp - Dew Point Display Ranges
66 Graphical METAR Symbology Appendix B Temperature - Dew Points This symbol displays the difference between the reported temperature and dew point. Differences are shown in degrees Fahrenheit. Temperature - Dew Point Temp - Dew Point Display Ranges (Blank) Unknown 11°+ (Green) 7° — 10° (Green) 0° —...
Page 76 - Garmin Corporation
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