GPS 400 Quick Reference
KEYS AND KNOBS 2 1 3 5 4 6 P 7 8 9 10 11 12 13 Figure 1-1 Keys and Knobs 1 2 3 4 5 2 Power CLR (clear) Direct-to RNG (map range) MENU 6 7 8 9 ENT (enter) NRST OBS MSG (message) 10 11 12 13 FPL (flight plan) PROC (procedures) Large right knob Small right knob LEFT-HAND KNOB RIGHT-HAND KEYS AND KNOBS The Power Knob controls unit power, turn clockwise to turn the unit on. The RNG Key allows the pilot to select the desired map range.
KEYS AND KNOBS The CLR Key is used to erase information, remove map detail, or to cancel an entry. Press and hold the CLR key to immediately display the Default NAV Page. The ENT Key is used to approve an operation or complete data entry. It is also used to confirm information, such as during power on. The large right knob is used to select between the various page groups: NAV, WPT, AUX, or NRST. With the on-screen cursor enabled, the large right knob allows the pilot to move the cursor about the page.
POWER ON Powering on the GPS 400: 4 1) Turn the Power Knob clockwise to turn the unit power on. 2) A welcome page appears briefly while the unit performs a self test, followed sequentially by the Land Data Page, then (if configured for TERRAIN) the Terrain Data Page, the Obstacle Data Page, and the Airport Terrain Data Page, as the unit conducts a self-test to ensure proper operation.
DATA ENTRY SCREEN LAYOUT (WINDOWS) CURSORS The GPS 400’s display is divided into two separate windows (or screen areas). The left side of the display provides three user-defined data fields. The right side of the display consists of a GPS Window, which shows the various navigation, waypoint information, and settings pages. The bottom of the display is used for annunciators. The GPS window cursor is used to select the desired fields. Press the small right knob to activate the cursor.
MAIN PAGE GROUPS NAV PAGE GROUP MAIN PAGE GROUPS The GPS 400’s main pages are divided into four separate page groups: NAV, WPT, AUX, and NRST. Each page group is comprised of multiple pages. The page groups are selected using the large right knob. The individual pages are selected using the small right knob. Page Groups NAV Group WPT Group AUX Group 7 NAV Pages 10 WPT Pages 4 AUX Pages The NAV Page Group includes seven pages.
DIRECT-TO NAVIGATION AUX PAGE GROUP Selecting a direct-to destination: The AUX Page Group includes four pages. Utility Flight Planning 1) Press the Direct-to Key. The Select Direct-to Waypoint Page appears, 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 the ENT Key to confirm the selected waypoint, and press the ENT Key again to activate the direct-to function.
DIRECT-TO NAVIGATION Selecting a direct-to destination from the Map Page: Selecting a direct-to destination by facility name or city: 1) Select the Map Page from the NAV Page Group. 1) 2) Press the small right knob to display a panning pointer. Press the Direct-to Key. The Select Direct-to Waypoint Page appears, with the waypoint identifier field highlighted. 2) Turn the small and large right knobs to place the panning pointer at the desired destination location.
VIEWING AIRPORT INFORMATION Selecting a nearby airport or a flight plan waypoint as a direct-to destination: 1) Press the Direct-to Key. 2) Turn the large right knob to highlight the nearest airport (NRST) or flight plan (FPL) field. 3) Viewing airport information: 1) Turn the large right knob to select the WPT Page Group. ‘WPT’ appears in the lower right corner of the screen. 2) Turn the small right knob to select the desired WPT page.
DEFAULT NAV PAGE Viewing airport information by facility name or city: 1) Select the Airport Location Page (see page 6). 2) Press the small right knob to activate the cursor. 3) Turn the large right knob to highlight the facility name (second line) or the city (third line) field. 4) Turn the small and large right knob to enter the facility name or city location of the desired destination waypoint.
DEFAULT NAV PAGE Quickly displaying the Default NAV Page: 4) Turn the small right knob to display the list of available data items. Continue turning the small right knob to select the desired data item from the list. 5) Press the ENT Key to select the desired data item and return to the Default NAV Page. 6) Press the small right knob momentarily to remove the cursor from the page. From any page, press and hold the CLR Key for approximately two seconds.
MAP PAGE MAP PAGE Selecting a map range: Map Display Map Range Desired Track Present Position Data Fields 1) Press the up arrow of the RNG Key to zoom out to a larger map area. 2) Press the down arrow of the RNG Key to zoom in to a smaller map area and more detail.
INHIBITING TERRAIN Turning the data fields off and displaying a full screen map: 1) With the Map Page displayed, press the MENU Key to display the Map Page Menu. 2) Turn the large right knob to highlight ‘Data Fields Off?’ and press the ENT Key. 3) Inhibiting TERRAIN: 1) Select the TERRAIN Page and press the MENU Key. ‘Inhibit Terrain?’ is selected by default. 2) Press the ENT Key. The ‘TER INHB’ annunciation is displayed in the TERRAIN annunciator field when TERRAIN is inhibited.
NAV/COM PAGE NAV/COM PAGE Scrolling through the list of frequencies: The NAV/COM Page provides a list of the airport communication and navigation frequencies at the departure, enroute, and arrival airports. Departure, Enroute, or Arrival Airport Assigned Frequency and Usage Information (When Applicable) 1) Activate the cursor, if not already active, by pressing the small right knob. 2) Turn the large right knob to move the cursor through the list of frequencies.
NEAREST AIRPORTS Viewing a list of nearest airports: Press the NRST Key to display the Nearest Airport Page. ‘NRST’ will appear in the lower right corner of the screen. Viewing additional information for a nearby airport: 1) Highlight the identifier of the desired airport by scrolling through the list, as described in the preceding procedure. 2) Press the ENT Key to display the Airport Location Page for the selected airport.
NEAREST AIRPORTS Selecting a nearby airport as a direct-to destination: 1) Press the Direct-to Key. The Select Direct-to Waypoint Page appears, with the waypoint identifier field highlighted. Press the FPL Key and turn the small right knob to display the Flight Plan Catalog Page. 2) Press the MENU Key to display the Flight Plan Catalog Page Menu. 2) Turn the large right knob to highlight the nearest airport (NRST) field.
FLIGHT PLANS Editing a flight plan: Navigating a flight plan: 1) Press the FPL Key and turn the small right knob to display the Flight Plan Catalog Page. 1) Press the FPL Key and turn the small right knob to display the Flight Plan Catalog Page. 2) Press the small right knob to activate the cursor. 2) Press the small right knob to activate the cursor. 3) Turn the large right knob to highlight the desired flight plan and press the MENU Key to display the Flight Plan Catalog Page Menu.
SELECT AN APPROACH Selecting an 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) 4) 18 A window appears listing the available procedures. Turn the large right knob to highlight the desired procedure and press the ENT Key. 5) Turn the large right knob to highlight ‘Load?’ or ‘Activate?’ and press the ENT Key.
ACTIVATE AN APPROACH Not all approaches in the database are approved for GPS use. As the pilot selects an approach, a ‘GPS’ designation to the right of the procedure name indicates the procedure can be flown using the GPS receiver. Some procedures do not have this designation, meaning the GPS receiver may be used for supplemental navigation guidance only. ILS approaches, for example, must be flown by tuning the VLOC receiver to the proper frequency and coupling the VLOC receiver to the external CDI (or HSI).
FLYING AN APPROACH GUIDELINES FOR FLYING AN APPROACH Due to the variety of available approach procedures, the specific steps required will vary according to the approach selected. Keep in mind the following while flying the approach: • Selecting the destination airport as the last waypoint in the active flight plan, or using the Direct-to Key ensures that the desired waypoint will automatically appear when choosing the ‘Select Approach?’ option from the Procedures Page.
FLYING THE MISSED APPROACH • The CDI will guide the pilot through a DME arc. Just keep the needle centered to fly along the arc. When using an autopilot, the course select on the CDI (or HSI) must be periodically updated with the desired track (DTK). • When crossing the missed approach point, ‘SUSP’ will appear above the OBS Key, indicating that automatic sequencing of waypoint is suspended at the missed approach point, and a ‘from’ indication will appear on the CDI (or HSI).
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