Garmin GPS Receiver manual

W AAS RAIM/FDE PREDICTION PROGRAM INSTRUCTIONS NO TE: T he WFDE Prediction Program is part of the Garmin T rainer and Route Planning software programs . T he required software and instructions are av ailable via the Garmin website at www .garmin.com. NO TE: T he WFDE Prediction Program requires an internet connection to provide access to current al[...]

1 O VERVIEW The following sections pr ovide an overview of the WFDE Prediction Program and guidelines for when it should be used. Section 1.2 provides a comprehensive set of guidelines for when a WFDE prediction is requir ed that is applicable to any installation of a Garmin W AAS enabled unit. Section 1.3 provides specific guidance for GTN 6XX/7X[...]

1.2 DETERMINING WHEN A WFDE PREDICTION IS REQUIRED The WFDE Prediction Pr ogram determines whether the GPS constellation is r obust enough to provide a navigation solution for the specified route of flight. As requir ed (dependent upon type of flight plan, GPS Software (SW) version, and GPS antenna), prior to departure the operator must use the [...]

* Approved refers to antennas listed in the applicable Installation Manual (T able 2) that allow the Garmin W AAS enabled unit with GPS software v3.XX or later to meet the TSO-C145a/C146a or TSO-C145c/C146c requirements without r equiring the operational limitations specified in the applicable Installation Manual. Unapproved refers to antennas lis[...]

2 IDENTIFYING GPS SOFTW ARE VERSION The GPS software version used in the Garmin W AAS enabled unit must be determined prior to performing the WFDE prediction. The GPS SW version may be a factor in determining if a WFDE prediction is r equired. 2.1 GNS 400W/500W SERIES PRODUCTS Identifying GPS Software V ersion of a GNS 400W/500W Series product: 1) [...]

GARMIN WAAS FDE PREDICTION PROGRAM INSTR UCTIONS 190-00643-01 Rev . E 6 WFDE PREDICTION PROGRAM INSTRUCTIONS 2.3 G1000 WITH GIA 63W Identifying GPS Software V ersion of a G1000 with a GIA 63W : 1) With the G1000 in normal mode , use the FMS Knob on the MFD to select the A UX - System Status P age (Figure 3). 2) Note the GPS Software V ersion. GPS S[...]

3 RUNNING THE FDE PREDICTION PROGRAM T rainer and route planning software for W AAS-certified Garmin products include a WFDE Prediction Program to meet the FDE requir ements for GPS as a primary means of navigation for Oceanic/Remote operations (refer ence F AA AC 20-138A Appendix 1). T o use the WFDE Prediction Program, begin by entering the inte[...]

Figure 6 P ossible Update Messages 4) T he WFDE Prediction Program window appears (Figure 7) listing the flight plan waypoints , selected antenna, and the current date/time as the departure time . It is important to verify that the displayed route is correct before proceeding with the prediction. Reference T able 3, and verify the correct Garmin p[...]

190-00643-01 Rev . E GARMIN WAAS FDE PREDICTION PROGRAM INSTR UCTIONS 9 WFDE PREDICTION PROGRAM INSTRUCTIONS Garmin P art Number Applicable Product 006-A0154-01 G1000 with GIA 63W 006-A0154-02 GNS 480/CNX80 006-A0154-03 GNS 400W/500W 006-A0154-04 Other Garmin Series 006-A0154-05 GTN 6XX/7XX Series T able 3 5) Mak e sure that the selected antenna an[...]

6) T o change the departure date , click the down arrow next to the “Date (UTC)” field. A calendar window appears . Click the left or right arrows to select a different month (if desired), then click the desired date . 7) T o change the departure time , click the hours , minutes , or seconds fields next to the “T ime (UTC)” field. Click [...]

Figure 8 Flight Setup Window 9) T o deselect satellites from the setup window , click “De-select Satellites , ” then clear the box adjacent to any satellite that should not be used in the prediction (Figure 9). WAAS satellites are not listed in the Satellite Selection Window as RAIM and FDE availability are not predicated on the availability of[...]

Figure 10 Almanac W arning NO TE: T o ensure accuracy of results , the almanac data used for the RAIM and FDE predictions must be recent. If the information is out of date, the WFDE Prediction Program will automatically prompt the user to update the almanac data (F igure 10). An internet connection is required to use this feature (see following ins[...]

This Prediction is Based on the Displayed Estimated Arrival Time ±15 Min. Displays the Leg of Route Where Outage Occurs Figure 12 GPS/FDE A vailability Results Screen Displays the Maximum FDE Outage Only (may be other FDE outages) Ground Speed for Outage May Differ from Entered Ground Speed, as Multiple Predictions are Calculated, Based on Entered[...]

4 INTERPRETING THE FDE PREDICTION RESUL TS The GPS/FDE A vailability Results screen provides either a “GO” or “STOP” status for the GPS, RAIM, FDE, LNA V RAIM, and LNA V/VNA V & LPV minima availability . A yellow flag is a possible result for an FDE prediction for a non-Oceanic prediction (see Figure 12). A “GO” status indicates th[...]

Suggestions to change the result of a failed flight plan prediction: 1) Alter the departure date and time . 2) Alter the route of flight. 3) V erify any deselected satellites . It is possible that some satellites unav ailable for a previous prediction are now available . 4) Update the almanac, especially if it is more than three months old. 5) Us[...]

5 UPD A TING/CHANGING ALMANA C AND CONFIGURA TION FILES 5.1 ALMANAC, GEO ALMANA C, AND CONFIGURA TION FILES T o ensure that each is current, the Almanac, GEO Almanac, and Configuration Files are automatically checked each time the program is started. If the program finds any of these files to be out of date, it will automatically update the fil[...]

5.2 CHANGING THE CONFIGURA TION FILE The WFDE Prediction Program may be used with several different Garmin software programs. Each program uses a specific configuration file to run the WFDE Prediction Program. If the user has multiple Garmin programs loaded, the user must verify that the configuration file currently in use is correct for the G[...]

6 PRINTING 6.1 PRINTING THE PREDICTION RESUL TS Use of the “Print” selection on the “File” menu (in the upper left-hand cor ner) is not recommended, as the complete results of the prediction are not included on the printout. If a printout is desir ed, use the following steps. Printing the Prediction Results: 1) F rom the GPS/FDE Availabilit[...]

190-00643-01_0E.indd 19 2/28/2011 1:24:37 PM[...]

© 2011 Garmin Corporation Garmin International, Inc. 1200 East 151 st Street, Olathe, Kansas 66062, U.S.A. T el. 913/397.8200 or 800/800.1020 Fax 913/397.8282 Garmin A T , Inc. 2345 T urner Rd., S.E., Salem, Oregon 97302, U.S.A. T el. 503/581.8101 or 800/525.6726 Fax. 503/364.2138 Garmin (Europe) Ltd. Liberty House, Bulls Copse Road, Hounsdown Bus[...]