OTHER OP-3CHANGING THE FREQUENCY STEP SIZEChoosing the correct frequency step size is essential inselecting your exact frequency. The default step size onthe 144 MHz band is 5 kHz (K type) or 12.5 kHz (E, M4types). The default on the 430/440 MHz band is 25 kHz(K, E types) or 10 kHz (M4 type) .1 Press the left or right [BAND SEL] to select band A orB, then press [VFO].2 Enter Menu mode and access Menu 101.3 Set the step size to 5.0*, 6.25*, or 8.33 kHz (118 MHzband only) or to 10.0, 12.5, 15.0*, 20.0, 25.0, 30.0,50.0, or 100.0 kHz.* These step sizes are not available for the 1200 MHz band.Note: Changing between step sizes may correct the displayedfrequency. For example, if144.995 MHz is displayed with a 5 kHz step size selected, changingto a 12.5 kHz step size corrects the displayed frequency to 144.9875MHz.PROGRAMMABLE FUNCTION KEYS■ Transceiver Front PanelThere are 2 PF (Programmable Function) keys on thetransceiver front panel: PF1 and PF2. You can assignyour own desired functions to these 2 keys.1 Enter Menu mode and access Menu 507 (PF1)and/or Menu 508 (PF2).2 Set your desired function for the key.Programmable functions available are: WX CH(Weather Channel)/ FRQ.BAND (Frequency bands)/CTRL (Control)/ MONITOR (Monitor)/ VGS (Voicerecorder)/ VOICE (Voice announcement)/ GROUPUP (Memory group up)/ MENU (Menu mode)/MUTE (Speaker Mute)/ SHIFT (Shift)/ DUAL (DualMode)/ M>V (Memory to VFO Copy)/ 1750 (1750Hz Tone)/ .■ Microphone KeysThere are 4 microphone PF (Programmable Function)keys: [PF] (PF1), [MR] (PF2), [VF0] (PF3) and [CALL](PF4). You can assign your own desired functions tothese 4 keys.1 Enter Menu mode and access Menu 509 (MIC.PF1) and/or Menu 510 (MIC. PF2) and/or Menu 511(MIC. PF3) and/or Menu 512 (MIC. PF4).2 Set your desired function for the key.Programmable functions available are: WX CH(Weather Channel)/ FRQ.BAND (Frequency bands)/CTRL (Control)/ MONITOR (Monitor)/ VGS (Voicerecorder)/ VOICE (Voice announcement)/ GROUPUP (Memory group up)/ MENU (Menu mode)/MUTE (Speaker Mute)/ SHIFT (Shift)/ DUAL (DualMode)/ M>V (Memory to VFO Copy)/ VFO/ MR/CALL/ MHz/ TONE/ REV (Reverse)/ LOW/ LOCK/A/B (Band Select A/ Band Select B)/ ENTER/ 1750(1750 Hz Tone)/ M.LIST (Message list)/ S.LIST(Station list)/ MSG.NEW/ REPLY/ POS/ P.MONI/BEACON/ DX/ WXi.FREQUENCY DIRECT ENTRYIf the desired operating frequency is far from the currentfrequency, using the microphone keypad is the quickestway to change the frequency. One of the microphone PFkeys must first be programmed as [ENTER],1 Press the left or right [BAND SEL] to select band A orB, then press [VFO] or [CALL].2 Press the key programmed as [ENTER].• The Direct Frequency Entry display appears.3 Press the microphone keys ([0] ~ [9]) to enter yourdesired frequency.4 To set the entered frequency, press [ENTER] or[VFO].• Pressing [ENTER] before entering all of the digits will setthe remaining digits to 0.• Pressing [VFO] before entering all of the digits will leavethe remaining digits at their previous values.• Entering all digits for a frequency will automatically set thefrequency without pressing [ENTER] or [VFO].• If you need to only change the MHz digit, press theTuning control, then enter the new value.