Power The Power knob controls unit power. Rotate clockwise to turn the unit on. The range key ( ) allows you to select the desired map scale. Use 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 establish a direct course to the selected destination.
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The NRST key ( ) displays the nearest airports page. Then, rotat- ing the small right knob ( ) steps through the NRST pages. The OBS key ( ) is used to select manual or automatic sequencing of waypoints. Pressing the OBS key selects OBS mode, which will retain the current “active to”...
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Screen Layout / DATA enTRy Data Field Window The GPS 400’s display is divided into three separate “windows” (or screen areas). The left 1/4 of the display provides three user-defined data field windows. The right 3/4 of the display consists of a GPS window, which is where you’ll find the various navigation, waypoint information and...
(Small right knob to select pages within the group) NAV Group Default NAV WPT Group Airport Runway Airport Frequency Airport Location AUX Group Flight Planning Utility NRST Group Nearest Airport Nearest Intersection Page selection NAVCOM Satellite Status Position Airport Approach Airport Arrival Airport Departure Selection of any main page is performed using the large (...
Course Deviation Indicator (CDI) 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 Left-hand Holding Pattern Right-hand Holding Pattern DME Arc to the left...
Map Display User-selectable Data Fields 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 VOR/DME Localizer MAP PAGE User-selectable...
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NavCom Page / Annunciators & Messages Frequency Category Usage Restriction Information The NAVCOM page provides a list of the airport communication and navigation frequencies at your departure, enroute and arrival airports. Departure, Enroute or Arrival Airport Assigned Frequency Scroll Bar CDI/RAIM Mode: Approach, Terminal or Enroute...
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Approaches Not all approaches in the database are approved for GPS use. As you select an approach, a “ G P S ” designation to the right of the procedure name indicates the procedure can be flown using the GPS receiver. Some pro- cedures will not have this designation, meaning the GPS receiver may be used for supplemental navigation guidance only.
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Another procedures page option allows you to activate the final course segment of the approach. This option assumes you will receive vectors to the final approach fix (FAF) and guides you to intercept the final course, before reaching the FAF. APPROACHES Due to the variety of available approach procedures, the specific steps required will vary according to the approach selected.
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“INTEG” annunciation at the bottom left corner of the display (see page 10)—if protection limits cannot be maintained. If this occurs, the GPS receiver cannot be used for primary navigation guidance, a missed approach should be initiated and select either 1) an alternate navigation source for another approach to the same airport, or 2) an alternate airport.
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