Yaesu FT-450 Operation Manual

Also see for FT-450: Brochure & specs Reference Manual User manual Technical supplement

Page 71FT-450 OPERATION MANUALAUTOMATIC P OWER -O FF (APO)The “Automatic Power-Off” (APO) feature will turn the radio completely off after a user-defined period of PTT orkey/button inactivity. If you do not press any front panel keys or buttons, rotate the [MAIN DIAL] knob, use themicrophone’s keys and buttons, or transmit, and so long as the transceiver is not scanning or engaged in prioritymonitoring, the radio will shut itself off after the specified time period. The available selections for the time beforepower-off are 1 - 12 hours (1 hour step), as well as APO Off. This feature is useful in minimizing battery drain ina mobile installation if you forget to turn the transceiver off.1. Press and hold the [F] button for one second toenter the Menu mode. The “ ” icon will ap-pear on the display.2. Rotate the [DSP/SEL] knob to select the menuitem “EXT MNU”.3. Press the [DSP/SEL] knob to enable adjustmentof this menu item. The “ ” icon will be blink-ing.4. Rotate the [DSP/SEL] knob to select “ON” to ex-pand the menu items.5. Press the [DSP/SEL] knob. The “ ” icon re-turns to appear continuously.6. Press and hold the [F] button for one second tosave the new setting and return to normal opera-tion.7. Press and hold the [F] button for one second toenter the Menu mode again. The “ ” iconwill appear on the display.8. Rotate the [DSP/SEL] knob to select the menuitem “APO”.9. Press the [DSP/SEL] knob to enable adjustmentof this menu item. The “ ” icon will be blink-ing.10.Rotate the [DSP/SEL] knob to select desired“Switch-off” time or “off.”You may press [HOME/RCL] button to reset thebeep volume level to the factory default.11. Press the [DSP/SEL] knob. The “ ” icon re-turns to appear continuously.12.Press and hold the [F] button for one second tosave the new setting and return to normal opera-tion.If there is no action by you within the time intervalprogrammed, the “APO” notation will blink on the dis-play and an alert bell will provide an audible warningfrom the speaker within one minute of the APO timerexpiration, then the microprocessor will shut downthe radio automatically.[DSP/SEL] Knob[HOME/RCL] button[F] buttonMISCELLANEOUS S ETTINGS