Instruction/ maintenance manual of the product GNS 420AW Garmin
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190-00356-01 Rev E 400W Series Quick Refer ence.
© 2006-2009 Garmin Ltd. or its subsidiaries This manual reflects the operation of Main System Software version 2.00, 3.00, or later . Some differ ences in operation may be observed when comparing the information in this manual to earlier or later software version.
1 190-00356-01 Rev E CAUTION: The Global P ositioning System is operated by the United States government, which is solely responsible for its accuracy and maintenance . T he system is subject to changes which could affect the accuracy and performance of all GPS equipment.
2 190-00356-01 Rev E Model Descriptions This guide covers the operation of the GPS 400W , GNC 420W , GNC 420A W , GNS 430W , and GNS 430A W . In general, all models will be referred to as the 400W -series , except where there ar e physical or operational differ ences.
3 190-00356-01 Rev E Left-hand Keys and Knobs k In the GNC 420W and the GNS 430W , the COM power/volume knob controls unit power and communications radio volume. Press the knob momentarily to enable/disable automatic squelch control. j In the GNS 430W , the VLOC volume knob controls audio volume for the selected VOR/ Localizer frequency .
4 190-00356-01 Rev E Right-hand Keys and Knobs R The range key ( RNG ) allows you to select the desired map scale. Press the up arr ow side of the key to zoom out or the down arrow side to zoom in. D The direct-to key allows you to enter a destination waypoint and establishes a direct course to the selected destination.
5 190-00356-01 Rev E Bottom Row Keys GPS 400W GNC 420W GNS 430W N The nearest ( NRST) key (GPS 400W and GNC 420W only) displays the nearest airports page. Then, turning the small right knob steps through the NRST pages. C In the GNS 430W , the CDI key is used to toggle which navigation source (GPS or VLOC) provides output to an external HSI or CDI.
6 190-00356-01 Rev E POWER ON Powering on the Unit 1. T urn the COM power/volume knob clockwise to turn the unit on and set the desired radio volume . 2. T he Main and GPS softw are version page appears briefly , followed by land and terrain database pages , as the unit conducts self-tests to ensure proper operation.
7 190-00356-01 Rev E Screen Layout (windows) COM Window GPS Window Active Fr equency on top & Standby on bottom (active window highlighted by cursor) { { VLOC Window { The 400W -series display is divided into four separate “windows” (or screen areas).
8 190-00356-01 Rev E P AGE SELECTION NRST Group Nearest Airport Nearest Inter section Nearest NDB Nearest VOR Nearest User Wpt Near est Center Nearest FSS Nearest Airspace A UX Group Flight Planning U.
9 190-00356-01 Rev E Default NA V Page TO/FROM Flag Course Deviation Indicator (CDI) Active Leg of Flight Plan User -selectable Data Fields The following symbols are used (directly below the CDI) to d.
10 190-00356-01 Rev E MAP P AGE Map Page User -selectable Data Fields Map Display Pr esent Position Map Scale The follow - ing symbols are used to depict the various airports and navaids on the map pa.
11 190-00356-01 Rev E NA VCOM Page The NA VCOM page provides a list of the airport com- munication and navigation frequencies at your departure, en route and arrival airports.
12 190-00356-01 Rev E AIRPORT INFORMA TION Viewing Airport Information 1. F rom any page , pre ss and hold CLR to select the default NA V page. (Y ou may skip this step if you are already viewing any of the main GPS pages .) 2. T urn the large right knob to select the WPT page group .
13 190-00356-01 Rev E T o Select a Direct-T o Destination 1 . Press the direct-to k ey . A Select Direct-T o W aypoint page will appear , with the way - point identifier field highlighted. 2. Use the small and large right knobs to enter the identifier of the desired destination waypoint.
14 190-00356-01 Rev E T o View a List of the Nearest Airports 1. F rom any page , pres s an d hol d th e CLR k ey to select the default NA V page . Y ou may skip this step if you are already viewing any of the main GPS pages . 2. T u r n t h e large right knob to select the NRST page group .
15 190-00356-01 Rev E T o Create a New Flight Plan 1. Press the FPL k ey and turn the small right knob to display the flight plan catalog. 2. Press the MENU k ey to display the flight plan catalog options . 3. T urn the lar ge right knob to highlight “Create New Flight Plan?” and press the ENT k ey .
16 190-00356-01 Rev E APPROACHES Selecting Approaches In order to select an appr oach, you must first have an active direct-to or flight plan that termi- nates at an airport with a published approach. 1. Press the PROC key to display the procedures page .
17 190-00356-01 Rev E Activating an Approach 1. With an approach loaded in the active flight plan, press the PROC k ey to display the procedures page .
18 190-00356-01 Rev E APPROACHES maintained. If this occurs, the GPS receiver should not be used for primary navigation guidance. Revert to an alternate navigation source, or select an alternate desti- nation airport. LPV , LNA V+V , and L/VNA V approaches will downgrade to LNA V if GPS integrity cannot be met.
19 190-00356-01 Rev E Annunciation Description LPV Localizer P erformance with V ertical guidance (LPV) approach. Fly to LPV minimums . A yel- low background indicates that the approach is safe to continue but a downgrade to LNA V may occur . LP LP indicates Localizer P erformance with no vertical guidance .
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190-00356-01 Rev E © 2006-2009 GARMIN Corporation GARMIN International, Inc. 1200 East 151 st Street, Olathe, Kansas 66062, U.S.A. T el. 913/397.8200 or 800/800.1020 Fax 913/397.8282 Garmin A T , Inc. 2345 T ur ner Rd., S.E., Salem, Oregon 97302, U.S.
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If you have not bought Garmin GNS 420AW yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Garmin GNS 420AW - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Garmin GNS 420AW you will learn all the available features of the product, as well as information on its operation. The information that you get Garmin GNS 420AW will certainly help you make a decision on the purchase.
If you already are a holder of Garmin GNS 420AW, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Garmin GNS 420AW.
However, one of the most important roles played by the user manual is to help in solving problems with Garmin GNS 420AW. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Garmin GNS 420AW along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
