57y 19 GPS SETUPSetting the GPS Function datum.Setting Item: DATUM: WGS-84 / Tokyo (Mean)PINNING: ON / OFFDGPS: ON / OFFDefault: DATUM: WGS-84PINNING: ONDGPS: ONExplanation:Select the positioning item of the GPS function.DATUM: WGS-84: Use WGS-84 as the positioning system. WGS-84 is a globalpositioning system constructed and maintained by the US.TOKYO (Mean): A Japanese positioning system is used as the positioningsystem.* Because APRS uses the DATUM of WGS-88, this setting is not changedunder normal circumstances.PINNING: ON: The latitude and longitude data is fixed when the movement speed of thisdevice is 0.OFF: The latitude and longitude are constantly calculated when the movementspeed of this device is 0.DGPS: ON: Correction data is used from a geostationary satellite to improve theaccuracy.OFF: Correction data from geostationary satellites is not used.y 20 GPS POWERON/OFF setting for the GPS function.Setting Item: GPS ON / GPS OFFDefault: GPS ONExplanation: Turn the GPS function ON or OFF.y 21 GPS TIME SETON/OFF of the GPS time and date automatic acquisition function.Setting Item: AUTO / MANUALDefault: AUTOExplanation:AUTO: Time data for the internal clock is automatically obtained from the GPSfunction.MANUAL: GPS time data is not used, and time set manually to the internal clock of thistransceiver is prioritized.