Page 4 - AT
DATA ENTRY O The outer knob is used to advance through pages, select comm frequency(MHz), advance the cursor or move through data fields. K The inner knob is used to change data, select comm frequency (KHz), or scrollthrough additional information that cannot fit on the screen. \ The clear key is us...
Page 6 - FL
TO SELECT A DIRECT - TO DESTINATION : ❏ Press D . ❏ Rotate K to select the first character of the destination waypoint’s identifier. Remember to use the ICAO identifier if you are entering an airport as your destination (i.e., KOSH forWittman Regional Airport). ❏ Rotate O one stop to the right to ad...
Page 7 - COMMUNICA
TO SELECT COMM FREQUENCIES : ❏ Press C repeatedly to highlight the standby field (e.g., “<121.75>”). ❏ Rotate O to select the desired megahertz (to the left of the decimal). ❏ Rotate K to select the desired kilohertz (to the right of the decimal). ❏ Press C twice to remove the cursor from the ...
Page 9 - AIRPORT
Waypoint Categor y Each waypoint category features a set of waypoint pages accessible by rotating the outer knob with thecursor inactive. Proximity Waypoint Page User Waypoints Page Waypoint Comments Page Airport Identification Airport Comments Airport Position Airport Communications Airport Runway ...
Page 10 - AYPOINT
TO ACCESS APT INFORMATION : ❏ Press the W key. ❏ Press C twice to activate the cursor. ❏ Press E to confirm the ‘apt?’ category. The airport identification page will appear with the identifierfield ready for entry. TO ENTER APTS BY IDENTIFIER : ❏ Highlight an identifier field, and enter the identifi...
Page 11 - DIRECT
TO SELECT A DIRECT - TO DESTINATION : ❏ Press the D key. ❏ Enter the identifier of the destination waypoint. ❏ Press E to accept the identifier, and E again to accept the direct-to confirmation page. TO RE - CENTER THE D - BAR : ❏ Press D , followed by E twice. TO SELECT A DIRECT - TO FROM ANY PAGE ...
Page 13 - WAYPOINT SEQUENCING AND HOLD MODE
The GNC 250’s waypoint sequencing field allows you to ‘hold’ on a selected waypoint and prevent the GPS from sequencing to the next route waypoint. You may also use the hold mode with the course select feature to maintain a user-defined course to the hold waypoint. TO HOLD ON A WAYPOINT : ❏ Set the ...
Page 14 - USING THE COURSE SELECT FUNCTION
Once the waypoint sequencing field is set to the ‘hold’ position, the selected course will appear at the bottom left corner of the CDI page. TO ENTER A NEW COURSE FROM THE CDI PAGE : ❏ Press C twice to activate the cursor in the GPS window. ❏ Rotate O to highlight the course select field. ❏ Use K an...
Page 15 - NA
CDI Page NAV Menu 2 NAV Menu 1 Satellite Status Page NAVCOM Page Position Page The NAV key is used to view navigation, position and status infor- mation and provides access to various planning and calculation functions. To scroll through the navigation pages, press NAV androtate the outer knob; or p...
Page 18 - NEAREST WAYPOINT INFORMATION
NEAREST/SU A TO VIEW NEAREST APT INFORMATION : ❏ Press the T key. The nearest airport will be displayed, subject to the runway surface type and minimum runway length currentlyselected. TO VIEW OTHER NEAREST APTS : ❏ Rotate K to the right. TO VIEW ANY ADDITIONAL AIRPORT INFO : ❏ Highlight the frequen...
Page 19 - ROUTES
ROUTES TO CREATE OR EDIT A ROUTE : ❏ Press the R key and rotate O until the route catalog page appears. ❏ Rotate K to display the route number you would like to create or edit (route 0 for the active route). ❏ Press C twice to activate the cursor in the GPS window. ❏ Rotate K to select the ‘edit?’ o...
Page 20 - ACTIVATING AND DELETING ROUTES
ROUTES TO ACTIVATE A ROUTE : ❏ Press R and rotate O to display the route catalog page. ❏ Rotate K to display the desired route. ❏ Press C twice to activate the cursor in the GPS window. ❏ Rotate K to select the ‘activate?’ option from the route action field. ❏ Press E . The route will be copied into...
Page 21 - UNIT
CDI Settings Message Page I/O Channel 2 Map Datum Nearest Apt Search SUA Settings Batter y Saver Display Intensity Trip Timer Mag Var/Arrival Alarms Units of Measure The MSG key is used to view system messages and access the GNC 250’s unit settings. To view a message, press MSG.To access the unit se...