VX-8GR OPERATING MANUAL 67nal was lost.2) When the built-in GPS Antenna Unit is activated, the current consumption increasesapproximately 40 mA. Therefore, battery life is reduced by approximately 20 % whenthe built-in GPS Antenna Unit is activated.3) You may memorize your current position as plotted by the GPS (up to ten points can besaved) via the APRS/GPS Set Mode Item 23: MY POSITION. See page 157 for details.You may customize the Time Zone (Time Offset), Display Units of the GPS screen, andGPS Datum for your own operating requirements via the APRS/GPS Set Mode.SETTING THE TIME ZONE (TIME OFFSET)Sets the time offset between your local time and UTC (Universal Time Coordinated orGMT: Greenwich Mean Time) shown on the display.1. Press the m key several times until the GPS screen ap-pears on the display.2. Press and hold the m key for one second to enter theAPRS/GPS Set Mode.3. Rotate the DIAL knob to select Set Mode Item 27: TIMEZONE.4. Press the m key briefly to enable selection of this SetMode Item.5. Rotate the DIAL knob to select the time offset from UTC.See illustration below to find your offset time from UTC. If“UTC +0:00” is assigned, the time is the same as UTC.6. Press the PTT switch briefly to save the new setting andexit from the APRS/GPS Set Mode.GPS OPERATION