400W Series Quick Reference 190-00356-01 Rev J
© 2006-2014 Garmin Ltd. or its subsidiaries This manual reflects the operation of Main System Software version 2.00, 3.00, 4.00, 5.00, 5.10, or later. Some differences in operation may be observed when comparing the information in this manual to earlier or later software version. All rights reserved.
WARNINGS, CAUTIONS, and NOTES WARNING: VNAV is to be used for advisory purposes only. VNAV messages or vertical speed required should not be used to maintain terrain or ATC clearances. Terrain and ATC clearances are the sole responsibility of the pilot. WARNING: The altitude calculated by the 400W-series is geometric height above mean sea level and could vary significantly from altitude displayed by pressure altimeters in aircraft.
MODEL DESCRIPTIONS Model Descriptions This guide covers the operation of the GPS 400W, GNC 420W, GNC 420AW, GNS 430W, and GNS 430AW. In general, all models will be referred to as the 400W-series, except where there are physical or operational differences. The 400W-series units are 6.25” wide and 2.66” high. The display is a 240-by-128 pixel color LCD.
KEYS AND KNOBS Left-hand Keys and Knobs k j 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. COM power/ volume VLOC volume Small left knob COM flip-flop VLOC flip-flop Large left knob In the GNS 430W, the VLOC volume knob controls audio volume for the selected VOR/ Localizer frequency. Press momentarily to enable/disable the ident tone.
KEYS AND KNOBS Right-hand Keys and Knobs Range (map scale) range key (RNG) allows you to select R The the desired map scale. Press the up arrow side of the key to zoom out or the down arrow side to zoom in. direct-to key allows you to enter a D The destination waypoint and establishes a direct course to the selected destination. Direct-To Large right knob you to make settings changes that relate to the currently displayed page. The clear key (CLR) is used to erase information or cancel an entry.
KEYS Bottom Row Keys flight plan (FPL) key allows you to F The create, edit, activate and invert flight plans, as well as access approaches, departures and arrivals. A closest-point-to-flight-plan feature is also available from the flight plan key. 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.
POWER ON Powering on the Unit 1. Turn the COM power/volume knob clockwise to turn the unit on and set the desired radio volume. 2. The Main and GPS software version page appears briefly, followed by land and terrain database pages, as the unit conducts self-tests to ensure proper operation. 3. Once the self-test concludes, database confirmation pages are displayed, showing the effective and expiration dates of the databases on the NavData® card.
SCREEN LAYOUT/CURSORS/FREQ SELECTION/DATA ENTRY Screen Layout (windows) Active Frequency on top & Standby on bottom (active window highlighted by cursor) { VLOC Window { COM Window { GPS Window The 400W-series display is divided into four separate “windows” (or screen areas). The top left 1/4 of the display provides a COM window (top two lines) and a VLOC window (bottom two lines) The three lines at the bottom left of the display are used for terrain, flight phase, and GPS integrity annunciators.
PAGE SELECTION (Small right knob to select pages within the group) NAV Group Map Default NAV Terrain NAVCOM Position (Large right knob to change page groups) Airport Location Airport Runway Airport Frequency Airport Approach VOR Airport Arrival User Waypoint Utility Airport Departure Intersection Selection of any main page is performed using the large and small right knobs. When the GPS window cursor is off, the large right knob selects the page group: NAV, WPT, AUX or NRST.
DEFAULT NAV PAGE / ANNUNCIATORS Default NAV Page To Select a Different Data Item for any Data Field Course Deviation Indicator (CDI) Active Leg of Flight Plan TO/FROM Flag User-selectable Data Fields The following symbols are used (directly below the CDI) to depict the active leg of a flight plan or direct-to: Course to a Waypoint, or Desired Course between Two Waypoints Direct-To a Waypoint Vectors-To-Final Left-hand Holding Pattern Right Procedure Turn Right-hand Holding Pattern
MAP PAGE Map Page User-selectable Data Fields Map Display Present Position Map Scale The following symbols are used to depict the various airports and navaids on the map page: Airport with hard surface runway(s); Primary runway shown Airport with soft surface runway(s) only Private Airfield Intersection VOR VORTAC VOR/DME TACAN DME NDB Localizer 2. Press the CLR key as needed to select the desired amount of map detail.
NAVCOM PAGE / TERRAIN PAGE NAVCOM Page The NAVCOM page provides a list of the airport communication and navigation frequencies at your departure, en route and arrival airports. Departure, En Route or Arrival Airport Frequency Category Assigned Frequency Usage Restriction Information Scroll Bar To Select a Frequency List for a Departure, En Route, or Arrival Airport 1. Press the small right knob to activate the cursor. 2.
AIRPORT INFORMATION Viewing Airport Information 1. From any page, press and hold CLR to select the default NAV page. (You may skip this step if you are already viewing any of the main GPS pages.) 4. Use the small and large right knobs to enter the facility name or city location of the desired destination waypoint. As you spell the facility name or city, the 400W series Spell’N’Find feature will select the first entry in the database based upon the characters you have entered up to that point. 2.
DIRECT-TO NAVIGATION To Select a Direct-To Destination 1. Press the direct-to key. A Select Direct-To Waypoint page will appear, with the waypoint identifier field highlighted. 2. Use the small and large right knobs to enter the identifier of the desired destination waypoint. 3. Press ENT to confirm the selected waypoint. Press ENT again to activate the direct-to function. To Select a Direct-To Destination from the Map Page 1. Select the map page from the NAV page group. 2.
NEAREST AIRPORTS To View a List of the Nearest Airports knob to display the additional WPT pages. When finished, press the small right knob to return the flashing cursor to the screen. 1. From any page, press and hold the CLR key to select the default NAV page. You may skip this step if you are already viewing any of the main GPS pages. 2. Turn the large right knob to select the NRST page group. “NRST” will appear in the lower right corner of the screen. 4.
FLIGHT PLANS To Create a New Flight Plan To Stop Navigating a Flight Plan 1. Press the FPL key and turn the small right knob to display the flight plan catalog. 1. Press the FPL key. 2. Press the MENU key to display the active flight plan options. 2. Press the MENU key to display the flight plan catalog options. 3. Turn the large right knob to highlight “Create New Flight Plan?” and press the ENT key. 4. A blank flight plan page will appear for the first empty storage location.
APPROACHES Selecting Approaches In order to select an approach, you must first have an active direct-to or flight plan that terminates at an airport with a published approach. 1. Press the PROC key to display the procedures page. 2. Turn the large right knob to highlight “Select Approach?” and press the ENT key. 3. A window will appear listing the available procedures. Turn the large right knob to highlight the desired procedure and press the ENT key. 4.
APPROACHES Activating an Approach 1. • You will typically select the destination airport as the last waypoint in the active flight plan or by using the direct-to key. Doing so ensures that the desired waypoint will automatically appear when choosing the “Select Approach?” option from the procedures page. Otherwise, you must first choose the airport, then the approach procedure. With an approach loaded in the active flight plan, press the PROC key to display the procedures page. 2.
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 destination airport. LP, LP +V, LPV, LNAV+V, and L/VNAV approaches will downgrade to LNAV if GPS integrity cannot be met. There is no need to switch to guidance by other navigation equipment unless GPS LNAV is insufficient or integrity degrades further.
APPROACHES Annunciation Description LPV Localizer Performance with Vertical guidance (LPV) approach. Fly to LPV minimums. A yellow background indicates that the approach is safe to continue but a downgrade to LNAV may occur. LP LP indicates Localizer Performance with no vertical guidance. LP +V LP +V indicates Localizer Performance with advisory vertical guidance. Fly LP minimums down to the MDA and missed approach location. This annunciation is available in SW Ver 5.10, or later.
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