Garmin GPS 155TSO Owner's Manual

Contents

Garmin GPS 155TSO Owner's Manual Manual pdf 12 page image

Searching the Sky Message.Acquiring satellite data.Enter the altitude manually if necessary.Once the database has been acknowledged, the Satellite Status page will appear,and the GPS 155 will begin to collect satellite information. An ‘Acquiring’ status willbe displayed on the Satellite Status page, and the signal values on the bottom line ofthe page will begin displaying numeric values. This is a good indication that you arereceiving signals, and satellite lock will occur. Following the first time use of yourGPS 155, the time required for a position fix will vary, usually from 2 to 5 minutes.If the unit can only obtain enough satellites for 2D navigation (no altitude), theunit will use the altitude provided by your altitude encoder, if one is connected andworking. If not, you will be prompted to enter the altitude with a ‘Need alt- PressNAV’ message. If this message occurs, press the N key and use the K and Oknobs to enter the altitude shown on your altimeter. Press E when finished.If the GPS 155 has not been operated for a period of six months, or has movedover 300 miles without actively tracking satellites, it may have to ‘Search the Sky’ tocollect new data. This means the unit is acquiring satellite data to establish almanacand satellite orbit information, which can take 7 1/2 to 30 minutes. The Status pagewill display a ‘Searching the Sky’ status, and the message annunciator (U), next to theM key, will also flash to alert you of a system message.To view a system message :1. Press M.The message page will appear and display the status or warning informationapplicable to the receiver’s current operating condition.To return to the previous page after viewing a message :1. Press M.2INTRODUCTIONFlying Start