Yaesu FT-991 Operating Manual

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Page 129FT-991 O PERA T I N G M A N U A L049 AM DATA GAINFunction: Sets the level of the AM signal input when“045 AM MIC SELECT” is set to “DATA”.Available Values: 0 - 100Default Setting: 50050 CW LCUT FREQFunction: Sets the low-frequency cutoff audio filter inCW mode.Available Values: OFF/100Hz - 1000Hz (50Hz/step)Default Setting: 250HzDescription: This is the low-frequency cutoff audio filterin CW mode.The cutoff frequency can be set at 50 Hz incrementsbetween 100 Hz and 1000 Hz.051 CW LCUT SLOPEFunction: Sets the slope of the low-frequency cutoff au-dio filter in CW mode.Available Values: 6dB/oct / 18dB/octDefault Setting: 18dB/octDescription: Selects the slope of the low-frequency cut-off audio filter in CW mode.052 CW HCUT FREQFunction: Sets the high-frequency cutoff audio filter inCW mode.Available Values: OFF/700Hz - 4000Hz (50Hz/step)Default Setting: 1200HzDescription: This is the high-frequency cutoff audio fil-ter in CW mode.The cutoff frequency can be set at 50 Hz incrementsbetween 700 Hz and 4000 Hz.053 CW HCUT SLOPEFunction: Sets the slope of the high-frequency cutoff au-dio filter in CW mode.Available Values: 6dB/oct / 18dB/octDefault Setting: 18dB/octDescription: Selects the slope of the high-frequency cut-off audio filter in CW mode.054 CW OUT LEVELFunction: Sets the level of the CW signal output fromthe RTTY/DATA jack.Available Values: 0 - 100Default Setting: 50055 CW AUTO MODEFunction: Enables/disables CW keying while operatingon SSB.Available Values: OFF/50M (50MHz)/ONDefault Setting: OFFDescription:OFF:Disables CW keying while operating on SSB.50M:Enables CW keying while operating SSB on 50MHz (but not HF).ON:Enables CW keying while operating SSB on allTX bands.056 CW BK-IN TYPEFunction: Sets the CW brake-in function.Available Values: SEMI/FULLDefault Setting: SEMIDescription: Selects the CW brake-in function.SEMI:A brief delay is provided after the CW keying op-eration, before the transceiver returns to receivemode.The receiver recovery time may be changed us-ing MENU “057 CW BK-IN DELAY”.FULL:The transceiver immediately returns to receivemode after every CW key-up (QSK mode).057 CW BK-IN DELAYFunction: Sets the CW delay time.Available Values: 30msec - 3000msec (10msec/step)Default Setting: 200msecDescription: In semi break-in mode, this setting deter-mines the delay time before returning to receivemode after the CW keying operation.The delay time can be changed in 10 msec steps be-tween 30 msec and 3000 msec.058 CW WAVE SHAPEFunction: Selects the CW carrier wave-form shape (rise/fall times).Available Values: 2ms/4msDefault Setting: 4ms (msec)Description: Sets the rise and fall times of the keyingenvelope in CW mode (transmit waveform).M enu M oDe