Yaesu FT-991 Operating Manual

Also see for FT-991: Manual Manual Operating manual Reference book Instruction manual

Page 16FT-991 O PERA T ING M ANUALfronT panel ConTrols & swiTChesC.S ButtonPress this button momentarily to directly recall a fa-vorite Menu Selection.To program a Menu selection to the C.S button,press the MENU(SETUP) button to enter theMenu. Select the Menu item you want to set asthe short cut. Press the C.S button, then press theMENU(SETUP) button; this will lock in the select-ed Menu item as the short cut.TXW (TX Watch) ButtonPressing and holding this button lets you monitor thetransmit frequency when split frequency operation isengaged. Release the button to return to normal splitfrequency operation.FAST ButtonPressing this button will change the tuning of theMain Tuning Dial knob (VFO-A) to a higher steprate.When this function is activated, the “FAST” indica-tor in the LED indicators area illuminates.LOCK ButtonThis button toggles locking on/off for the Main Tun-ing Dial knob (VFO-A). With “Lock” on, the MainTuning Dial knob can still be turned, but the fre-quency will not change, and the “LOCK” indicatorin the LED indicators area illuminates.CLAR ButtonRXPressing this button activates the RX Clarifier. Thiswill allow you to temporarily adjust the receivefrequency up to ±9.999 kHz with the CLAR/VFO-B knob. Press this button once more to return thereceiver to the original frequency; the Clarifier offsetwill be remembered, in case you want to use it again.To cancel the Clarifier offset, press the [CLEAR]button.Pressing this switch during Split operation willchange the tuning rate of the CLAR/VFO-B knob(VFO-B) to 100 Hz/step.When this function is activated, the “FAST” indica-tor in the LED indicators area illuminates.TXPressing this button activates the TX Clarifier, to al-low offsetting the transmit frequency temporarily.Press this button once more to return the transmit-ter to the original frequency; the Clarifier offsetwill be remembered, though, in case you want touse it again. To cancel the Clarifier offset, press the[CLEAR] button.V/M ButtonThis button toggles frequency control between VFO-A and the memory system. In memory mode, “MEM”(Memory Channel) will be shown in the display toindicate the current selection. Pressing the V/M but-ton displays the original memory frequency, and the“MEM” will be displayed. Pressing it once morereturns frequency operation to VFO-A, and the iconwill no longer be displayed.AM ButtonPressing this button momentarily, displays the con-tents of the currently-selected memory channel for10 seconds.Pressing and holding in this key for one second (untilthe double beep) copies the current operating datainto the currently selected memory channel, over-writing any previous data stored there.SPLIT ButtonPress this button to operate split frequency betweenVFO-A (used for reception) and VFO-B (used fortransmission). If you press and hold in the SPLITbutton for one second, the “Quick Split” feature willbe engaged. VFO-B transmit will automatically beset to a frequency 5 kHz higher than the VFO-A re-ceive frequency, with the same operating mode. Thetransceiver will operate in the Split mode.