Garmin GNX 20 Marine instrument Owner's Manual
Contents
1. Removing an Instrument Page Device Configuration Resolving a Combined Network SEINE ULU E AM Viewing and Editing NMEA Settings NMEA 0183 Data Type Information Registering Your Device AOPEN AA eo MA Table of Contents Introduction See the Important Safety and Product Information guide in the product box for product warnings and other important information Device Configuration NOTE Certain functions are available only when the appropriate sensors are connected to the device The GNX 20 Marine Instrument with Standard LCD or the GNX 21 Marine Instrument with Inverted LCD allows you to view data provided by sensors connected to the device using a NMEA 2000 or 0183 network GARMIN J Id 316 10 4 BTW m Select to return to the previous menu to the instrument page Select to view the menu for an instrument page lt Select to scroll through instrument pages and menus 11 0 Select to view display settings Select twice to view backlight settings Hold to view th2. To automatically set the magnetic declination for your GPS position select MAGNETIC set true north as the heading reference select TRUE set grid north as the heading reference 000 select GRID Configuring the Beeper 1 Select gt SETUP gt SYSTEM gt BEEPER 2 Select an option To turn off the beeper select OFF set the beeper to sound only when alarms are triggered select ALARMS ONLY To setthe beeper to sound when the keys are pressed and alarms are triggered select ON KEYS AND ALARMS Configuring the Position Format NOTE Do not change the position format or the map datum unless you are using a map or chart that specifies a different position format 1 Select gt SETUP gt SYSTEM gt GPS POSITION 2 Select an option To change the position format in which a reading appears select POSITION FORMAT To change the coordinate system on which the map is structured select MAP DATUM Configuring Data Sources Instruments that are connected to your device and provide data such as wind sensors or speed sensors can be configured through your device Refer to your instruments owner s manuals for more information 1 Select gt SETUP gt DATA SOURCES 2 Select a data source and configure it 3 Select your instrument 4 Select a source and configure Display Settings Select gt SETUP gt DISPLAY COLOR Sets the screen color BACKLIGHT Sets the backli
3. A GARMIN GNX 20 21 Owner s Manual GARMIN February 2014 190 01659 00_0B Printed in Taiwan All rights reserved Under the copyright laws this manual may not be copied in whole or in part without the written consent of Garmin Garmin reserves the right to change or improve its products and to make changes in the content of this manual without obligation to notify any person or organization of such changes or improvements Go to www garmin com for current updates and supplemental information concerning the use of this product Garmin and the Garmin logo are trademarks of Garmin Ltd or its subsidiaries registered in the USA and other countries GNX 20 21 is a trademark of Garmin Ltd or its subsidiaries This trademark may not be used without the express permission of Garmin NMEA NMEA 2000 and the NMEA 2000 logo are registered trademarks of the National Marine Electronics Association Table of Contents 7 AAA A Device Configuration u A A AA Restoring Profiles to their Default Settings INSUUMBRE PAGES u LI aia Cycling Through Instrument Configuring the Data Fields Changing the Layout of Instrument Adding an Instrument Page
4. 1 From the instrument page select gt CONFIGURE DATA FIELDS gt GRAPH SETTINGS 2 Select an option determine how long the graph data displays select GRAPH DURATION configure the scale of values displayed in the graph select GRAPH SCALE Changing the Layout of Instrument Pages NOTE Instrument page layout can be changed only on pages that display more than one instrument You can change the layout of instrument pages to display up to three instruments from any category Introduction Select gt EDIT CURRENT PAGE gt CHANGE LAYOUT Select the number of instrument screens to view atthe same time Select a category Select an instrument If necessary select a data style Select DONE N QI A OQ Adding an Instrument Page You can create a custom page You can add up to three instruments from instrument collections to display on a custom page 1 Select gt ADD REMOVE PAGE gt ADD PAGE 2 Select ONE FUNCTION TWO FUNCTION or THREE FUNCTION Select an instrument page collection Select a number If necessary select an empty function Select or W to scroll through the instrument pages Select an instrument page to add Removing an Instrument Page 1 Select the instrument page to remove 2 Select gt ADD REMOVE PAGE gt REMOVE PAGE 3 Select YES Device Configuration Resolving a Combined Network When the device is turned on it ca
5. 20 221 985465 358 96937 9758 39 02 36 699699 0800 0233937 00800 4412 454 44 2380 662 915 386 4 27 92 500 TRIE LI The st 34 93 275 44 97 46 7744 52020 0808 238 0000 44 0 870 8501242 43 0 820 220230 385 15508 272 385 1 5508 271 45 4810 5050 29359695399 52 001 855 792 7671 47 815 69 555 35 1214 447 460 0861 GARMIN 427 646 PEA 27 0 11 251 9999 49 0 180 6 427646 20 ct Anruf a d deutschen Festnetz Mobilfunk max 60 ct Anruf Garmin International Inc 1200 East 151st Street Olathe Kansas 66062 USA Garmin Europe Ltd Liberty House Hounsdown Business Park Southampton Hampshire SO40 9LR UK Garmin Corporation No 68 Zhangshu 2nd Road Xizhi Dist New Taipei City 221 Taiwan R O C EAL C 2014 Garmin Ltd or its subsidiaries
6. data field For example relative humidity RUD The rudder relative to another data field For example rudder angle SEA The temperature of the water SOG The actual speed of travel regardless of the course steered and temporary variations in heading STR The steer pilot STW The speed of the boat relative to the water TRP A running tally of the distance traveled since the last reset TWA The angle of the wind relative to the water referenced from the bow of the boat with a port or starboard angle up to 180 degrees TWD The true direction of the wind relative to north TWS The true speed of the wind relative to the vessel UTC The Coordinated Universal Time VMG The speed at which you are closing on a destination along a route You must be navigating for this data to appear WND The velocity made good upwind XTE A cross track error Appendix automatic scrolling 1 B beeper 2 D data 2 data fields 3 device registration 3 display settings 2 H heading type 2 instruments 1 adding pages 2 configuration 1 removing pages 2 N NMEA 0183 3 NMEA 2000 2 pages 1 position format 2 product registration 3 profiles 1 restoring 1 selecting 1 R race timer 1 registering the device 3 settings 2 system information 2 T timer 1 troubleshooting 2 Index www garmin com support 1 800 800 1020 1 866 429 9296 322 0 25254 420 221 985466 4
7. e true wind speed GPS speed information GPS course information bearing to waypoint distance to the next waypoint true wind angle and depth SAIL RACE This profile displays instruments useful when racing in a sailboat Available default instruments include GPS speed information true wind speed true wind angle heading bearing to waypoint and distance to the next waypoint CUSTOM This profile allows you to customize the page to display instruments useful to your specific boating needs The default page displays speed over ground information Selecting a Profile 1 Select gt SETUP gt PROFILES 2 Select a profile Restoring Profiles to their Default Settings You can restore profiles to their factory default settings 1 Select gt SETUP gt PROFILES gt RESET DEFAULTS 2 Select CURRENT PROFILE or ALL PROFILES Instrument Pages Cycling Through Instrument Pages From the home page select or W Using Auto Scroll You can use auto scroll to automatically cycle through all of the instrument pages 1 Select 2 Select SETUP gt AUTO SCROLL 3 Select how long each instrument page displays Configuring the Data Fields Data provided on an instrument page can be shown in various ways depending upon the instrument page that is displayed Select gt CONFIGURE DATA FIELDS Configuring Graph Data Fields Some instrument pages display graph data You can configure the data that displays on the graphs
8. e power off settings Using the Race Timer You can use the race timer to count down to a race and then measure the duration of the race You can add the race timer as a data field on a page TIP To quickly open the race timer screen hold from a main page 1 From a page with the race timer active select gt CONFIGURE DATA FIELDS gt RACE TIMER SETTINGS 2 Select an option When the device is in prerace mode and is stopped or running select RESET START or SETUP When the device is in prerace mode and is running sync the timer to the next minute up or the next minute down or select STOP e When the device is in race mode and the race timer is counting up sync the timer back to 0 00 or select STOP Profiles Profiles are collections of instrument pages that can be customized Profiles can be made up of instrument pages that display similar data such as GPS speed information and GPS course information During the initial setup you can select a preset profile or you can create a custom profile You can select a different profile at any time POWERBOAT This profile displays instruments useful when in a powerboat Available default instruments include GPS speed information GPS course information depth bearing to waypoint distance to the next waypoint and water temperature SAIL CRUISE This profile displays instruments useful when cruising in a sailboat Available default instruments includ
9. essure BAT The battery voltage BTW The direction from your current location to a destination You must be navigating for this data to appear COG The actual direction of travel regardless of the course steered and temporary variations in heading CTS The direction in which you must steer to return to the course set at the start of navigation DIS The distance traveled for the current track or activity DPT The depth of the water Your device must be connected to a NMEA 0183 or NMEA 2000 device capable of acquiring the water depth The speed of the current DTW The distance to the waypoint ELV The altitude of your current location above or below sea level ERR The precision of the current position when used with GPS GWD The direction of the wind relative to the ground referenced from the north GWS The speed of the wind relative to the ground HDG The direction the boat is pointing HUM The level of humidity MAX The maximum in relation to another data field For example maximum speed MIN The minimum in relation to another data field For example minimum speed ODO A running tally of distance traveled for all trips This total does not clear when resetting the trip data OTH The opposite tack direction of the vessel based on the current tack direction POS The vessel s current position RACE The timer for vessel racing REF steer pilot reference REL Relative to another
10. ght brightness NETWORK SHARING Shares color and backlight settings with devices across the 2000 or 0183 network Viewing and Editing NMEA Settings You can view information about NMEA or NMEA 2000 device and change device specific options 1 Select 2 Select SETUP 3 Select NMEA 0183 or NMEA 2000 DEVICES 4 lf necessary select an option To view information about the device such as the software version and the serial number select DEVICE LIST e change the label of a device select LABEL DEVICES Device Configuration 0183 Data Information Each certified sensor provides unique information to the NMEA certified display device such as the GNX 20 21 The data you can view on your display depends on the sensors you have installed and configured See the General NMEA Data Type Requirements topic in the Technical Reference for Garmin NMEA Products manual at www garmin com support Registering Your Device Help us better support you by completing our online registration today Goto http my garmin com e Keep the original sales receipt or a photocopy in a safe place Appendix Data Fields ABS Absolute relative to another data field For example absolute humidity AIR The air temperature AVG The average amount AWA The wind angle measured relative to the bow of the vessel AWS The measured speed of the wind BAR The calibrated current pr
11. n detect when it has been synchronized with instruments on another network This can happen if the device has previously been installed on another vessel and synchronized with instruments on the other vessel s network If the settings are not restored to the factory default values Restoring Profiles to their Default Settings the device detects a conflict that must be resolved 1 Select gt SETUP gt COMBINED NETWORKS DETECTED 2 Select an option To synchronize existing instruments on the network to the device select NO e synchronize the device to existing instruments on the network select YES System Settings Select gt SETUP gt SYSTEM UNITS Sets the units of measure HEADING Sets the reference and the variance used in calculating heading information BEEPER Sets when audible sounds are used GPS POSITION Sets the position format and the map datum The map datum is dependent on the position format AUTO POWER Enables the device to turn on automatically when the NMEA network turns on LANGUAGE Sets the on screen language OPERATING MODE Displays a demonstration of device features TIME Sets the time format time zone and daylight savings time for your location SYSTEM INFORMATION Displays software information FACTORY DEFAULT Resets the device to factory defaults Selecting the Heading Type 1 Select gt SETUP gt SYSTEM gt HEADING 2 Select NORTH REFERENCE 3 Select an option
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