48APO (AUTO POWER OFF)The transceiver switches OFF automatically if no keys or controls are pressed oradjusted for 30 minutes (default). One minute before the transceiver switchesOFF, warning beeps sound for a few seconds and “APO” blinks. You can selectthe APO time from OFF (disable), 30 (default), 60, 90, 120, or 180 minutes.1 Enter Menu mode and access Menu No. 5 (APO), then press [F].2 Rotate the ENC control to select OFF/ 30/ 60/ 90/ 120/ 180 minutes, thenpress [F] to store the setting.3 Press [MENU] or [PTT] to exit Menu mode.Note:◆ APO does not function while the transceiver is scanning.◆ When Tone Alert is ON, APO does not turn the power OFF.◆ The APO timer starts counting down the time when no keys are pressed and no controlsare adjusted.◆ The APO warning beep sounds and “APO” appears 1 minute before the transceiver turnsOFF.NARROW BAND FM OPERATIONThe transceiver operates in normal FM deviation (±5 kHz) mode for bothtransmitting and receiving. You can also operate the transceiver in narrow bandFM deviation (±2.5 kHz) mode.1 Enter Menu mode and access Menu No. 9 (N.FM), then press [F].2 Rotate the ENC control to select “ON”, then press [F] to store the setting.3 Press [MENU] or [PTT] to exit Menu mode.• When FM narrow is activated, the “ ” icon appear on the display.