Yaesu FT-7900R Operating Manual

Also see for FT-7900R: Technical supplement

61FT-7900R OPERATING MANUALM ISCELLANEOUS S ETTINGSWhen APO is activated, the “ ” icon will appear on the LCD. If there is no action by youwithin the time interval programmed, the “ ” icon blinksand a ringer sounds 3 minutes before the APO shut-downtime; three minutes thereafter, the microprocessor will shutdown the radio automatically.Just press and hold in the PWR ( ) switch for 1/2 second to turn the transceiver back onafter an APO shutdown, as usual.MIC GAIN CONTROLYou can reduce the microphone input level when operating on tightly-clustered frequencies(channel spacing of 12.5 or 15 kHz). This will reduce the transmitter deviation, thus mini-mizing interference to other users.To configure for the narrower bandwidth, use the following procedure:1. Press and hold in the [BAND(SET)] key for 1/2 second to enter the Set mode.2. Rotate the DIAL knob to select Menu #47 (WID.NARWID.NARWID.NARWID.NARWID.NAR).3. Press the [BAND(SET)] key momentarily, then rotatethe DIAL knob to change the display to “NARROWNARROWNARROWNARROWNARROW”.4. Press the [BAND(SET)] key momentarily to save thenew setting, then press and hold in the [BAND(SET)]key for 1/2 second to exit to normal operation.To restore the normal (higher) microphone input level, select “WIDEWIDEWIDEWIDEWIDE” in step 3 above.AUTOMATIC POWER-OFF