Garmin GNC 420W Quick Reference
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Garmin GNC 420W Quick Reference

Garmin GNC 420W Quick Reference

400w series
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400W Series
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Summary of Contents for Garmin GNC 420W

  • Page 1 400W Series Quick Reference...
  • Page 2 Aviation Database Card Nav Radio Volume Nav Radio Freq Flip/Flop Large Knob Com/VLOC Freq (MHz) Terrain, Flight Phase, and Small Knob GPS Integrity Com/VLOC Annunciator Freq (kHz) Com Freq Graphic Moving Window Map Display and Nav Freq Navigation Info Window...

  • Page 3: Model Descriptions

    XM audio services. GPS 400W GNC 420W and GNC 420AW The GNC 420W and GNC 420AW include all of the features of the GPS 400W, and also include an IFR certified airborne VHF communications transceiver. This multipur- pose unit is available with either a 10-watt (GNS 420W) or 16-watt (GNS 420AW) Com transmitter.
  • Page 4 Left-hand Keys and Knobs 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. In the GNS 430W, the VLOC volume knob controls audio volume for the selected VOR/ Localizer frequency.
  • Page 5 Right-hand Keys and Knobs The range key (RNG) allows you to select the desired map scale. Press the up arrow side of the key to zoom out or the down arrow side to zoom in. The direct-to key allows you to enter a destination waypoint and establishes a direct course to the selected destination.
  • Page 6 GNC 420W GNS 430W 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. In the GNS 430W, the CDI key is used to...
  • Page 7 Turn the COM power/volume knob clockwise to turn the unit on and set the desired radio volume. 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.
  • Page 8 flip-flop key to swap the COM or VLOC frequency from the standby into the active window. To Quickly Tune and Activate the 121.500 Emergency Channel (GNS 430W and GNC 420W only) Press and hold the COM flip/flop key for approxi- mately two seconds. Data Entry...

  • Page 9: Page Selection

    Airport Departure 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. The small right knob selects the desired page within a group.
  • Page 10 Default NAV Page Course TO/FROM Deviation Flag Indicator (CDI) Active Leg of User-selectable Flight Plan Data Fields...

  • Page 11: Map Page

    MAP PAGE Map Page User-selectable Data Fields Map Display...
  • Page 12 NAVCOM Page The NAVCOM page provides a list of the airport com- munication and navigation frequencies at your departure, en route and arrival airports. Assigned Frequency...

  • Page 13: Airport Information

    field of the COM or VLOC window. The Airport Frequency page in the GPS 500W allows you to view frequency information and scroll through the list by turning the large right knob.

  • Page 14: Direct-To Navigation

    To Select a Direct-To Destination Press the direct-to key. A Select Direct- To Wa y p o i n t p a g e will appear, with the waypoint identifier field highlighted. Use the small and large right knobs to enter the identifier of the desired destination waypoint.

  • Page 15: Nearest Airports

    To View a List of the Nearest Airports 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. Turn the large right knob to select the NRST page group.

  • Page 16: Flight Plans

    To Create a New Flight Plan Press the FPL key and turn the small right knob to display the flight plan catalog. Press the MENU key to display the flight plan catalog options. Turn the large right knob to highlight “Create New Flight Plan?”...
  • Page 17 GPS receiver may be used for supplemental navigation guidance only. If the GPS receiver cannot be used for primary guid- ance, you must use the appropriate receiver for the selected approach (e.g., VOR or ADF). The final course segment of ILS approaches, for example, must be flown by tuning...
  • Page 18 (“TURN TO ###°”) will appear in the lower right corner of the display. • For GPS-based approaches, receiver autonomous integ- rity monitoring (RAIM) will monitor satellite conditions and alert you—using an “INTEG” at the bottom left...
  • Page 19 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, LNAV+V, and L/VNAV approaches will downgrade to LNAV if GPS integrity cannot be met.
  • Page 20 L/VNAV GPS approach identified in the database as LNAV/VNAV. Fly to LNAV/VNAV minimums. LNAV+V Non-precision GPS approach with advanced vertical guidance. Note that some LNAV/VNAV approaches are not yet marked in the data- base as such and will show up as LNAV+V.
  • Page 22 © 2006 GARMIN Corporation GARMIN International, Inc. 1200 East 151 st Street, Olathe, Kansas 66062, U.S.A. Garmin AT, Inc. 2345 Turner Rd., S.E., Salem, Oregon 97302, U.S.A. GARMIN (Europe) Ltd. Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9AQ, U.K.

This manual is also suitable for:

Gns 420awGns 430awGns 430wGps 400w

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