68Using the GPS FunctionUsing the GPS FunctionWhat is GPS?GPS (Global Positioning System) is a space-based satellite navigation system thatprovides location and time information anywhere on the earth. It was developed by theU.S. Department of Defense as a military system. It receives signals from three or moreof about 30 GPS satellites flying at an altitude of about 20,000 km, and displays thecurrent position (latitude, longitude, and altitude) within a tolerance of several meters. Inaddition, GPS can receive the exact time from the satellite’s onboard atomic clock.Activating the GPS FunctionTo activate the GPS function, select [9 APROS] [23GPS POWER], and then select[GPS ON] in the Set mode.Tips• Default: ONWhen the GPS function on the transceiver is turned ON, internal clock settings andposition settings for your station are automatically obtained from the GPS data.1 Press and hold M for over 1 second to enter the Set mode.2 Turn O to select [9 APRS].3 Press H.4 Turn O to select [20 GPS POWER].5 Press H.6 Turn O to select [GPS ON].7 Press p to set the GPS Function to ON, and exit the Setmode.Tips• Tip Information about the current positions of radio stations provided by GPS can be registered to10 memory channels (P1 to P10). Registered position information can be used to set the positionof your station.• When the GPS function is active, the power consumption increases by about 40 mA. As a result,the battery life is reduced by about 20% compared to when the GPS function is deactivated.• To use the GPS function during APRS operation, be sure to select [9 APRS] [24MY POSITION],and then select [GPS] in the Set mode.
