4 GPS28 CONTENTS TH-D72A/EFigure 4-5 GPS Satellite Information DisplayTo display the position information display, $GPGSV or $GPGSA should be selected in Menu 211(GPS – Setup – Sentence).While the internal GPS unit is active, the transceiver’s built-in clock is automatically configured withthe time and date from the internal GPS unit.While the internal GPS unit is inactive, set the clock manually.Timing of automatic adjustments:• First positioning after the power is turned ON• Once in 24 hoursThe moment the built-in clock reads 00:00, if the internal GPS unit is positioning, the time data fromthe GPS unit is set to the radio’s built-in clock.Figure 4-6 Time and Date DisplayNorth Up keeps North at the top of the display. This is convenient when checking your destination orthe location (direction) of another station on a printed map. In contrast, Heading Up keeps yourtraveling direction at the top. So, when traveling to a destination or another station by car or anyother mode of traveling, the display conveniently allows one to definitely know which way to go at acrossing in real-time. (Thus it can be used as a portable navigation device.)Pressing the [F] key in the “Time, Altitude, Travel direction, speed” display, “Target point distance,Travel direction” display, or “Station List menu” display switches between North Up and Heading Up.4.3.2 Automatic Adjustment of the Built-in Clock4.3.3 North Up and Heading Up