18 FT-8800R Operating Manual1 PTT SwitchPress this switch to transmit, and release it to receive.2 KeypadThese 16 keys generate DTMF tones during transmission.In the receive mode, these 16 keys can be used fordirect frequency entry and/or direct numeric re-call of the Memory channels.3 [P1]/[P2]/[P3]/[P4] Buttons[P1] button: Press this button to switch the “Main”band between the “Left” and “Right” displays on the LCDscreen. This is the best and easiest way to set the “Main” bandto the side you prefer.Pressing and holding in this button for 1/2 second moves op-eration to the next-highest frequency band on the “Main” band.[P2] button: Press this button momentarily to switch the frequencycontrol for the “Main” band between the VFO and Memory Systems.When the “Main” band is set to the VFO mode, press and hold in this button for 1/2 secondto activate the Smart Search Feature.When the “Main” band is set to the Memory mode, press and hold in this button for1/2 second to activates the “Memory Bank” feature.[P3] button: Pressing this button repeatedly allows selection of the CTCSS or DCS modeon the “Main” band. The selections available are:ENC Æ ENC.DEC (Tone Squelch) Æ DCS Æ OFF Æ ENC ......[P4] button: Press this button momentarily to select the transmitter power output level onthe “Main” band (“LOW,” “MID2,” “MID1,” or “HIGH”).When the “Main” band is set to the Memory mode or Home Channel, press and hold inthis key for 1/2 second to switch the memory channel display between the “Frequency”format and “Alpha-numeric Tag” format.You can reprogram the [P1], [P2], [P3], and [P4] buttons for other functions, if desired.See page 53 for details.4 LAMP SwitchThis switch illuminates the Microphone keypad.5 LOCK SwitchThis switch locks out the Microphone buttons (except for the keypad and PTT switch).6 [UP]/[DWN] ButtonPress (or hold in) either of these buttons to tune (or scan up or down) the operatingfrequency or through the memory channels on the “Main” band. In many ways, thesebuttons emulate the function of the (rotary) “Main” band DIAL knob.DTMF MICROPHONEMH-48123456MH-48A6J M ICROPHONE