Yaesu FT-991 Operating Manual

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Contents

Page 134FT-991 O PERA T I N G M A N U A L101 RTTY OUT LEVELFunction: Sets the output level during the sending/re-ceiving of data in RTTY mode.Available Values: 0 - 100Default Setting: 50Description: Sets the data output level during the send-ing/receiving of data in RTTY mode. The higher thesetting, the higher the output level becomes.102 RTTY SHIFT FREQFunction: Sets the shift width for RTTY mode.Available Values: 170/200/425/850 (Hz)Default Setting: 170HzDescription: Sets the shift width for RTTY mode.103 RTTY MARK FREQFunction: Sets the mark frequency for RTTY mode.Available Values: 1275/2125 (Hz)Default Setting: 2125HzDescription: Sets the mark frequency for RTTY mode.104 SSB LCUT FREQFunction: Sets the low-frequency cutoff audio filter inSSB mode.Available Values: OFF/100Hz - 1000Hz (50Hz/step)Default Setting: 100HzDescription: This is the low-frequency cutoff audio filterin SSB mode.The cutoff frequency can be set at 50 Hz incrementsbetween 100 Hz and 1000 Hz.105 SSB LCUT SLOPEFunction: Sets the slope of the low-frequency cutoff au-dio filter in SSB mode.Available Values: 6dB/oct / 18dB/octDefault Setting: 6dB/octDescription: Selects the slope setting of the low-fre-quency cutoff audio filter in SSB mode.106 SSB HCUT FREQFunction: Sets the high-frequency cutoff audio filter inSSB mode.Available Values: OFF/700Hz - 4000Hz (50Hz/step)Default Setting: 3000HzDescription: This is the high-frequency cutoff audio fil-ter in SSB mode.The cutoff frequency can be set at 50 Hz incrementsbetween 700 Hz and 4000 Hz.107 SSB HCUT SLOPEFunction: Sets the slope of the high-frequency cutoff au-dio filter in SSB mode.Available Values: 6dB/oct / 18dB/octDefault Setting: 6dB/octDescription: Selects the slope setting of the high-fre-quency cutoff audio filter in SSB mode.108 SSB MIC SELECTFunction: Selects the microphone input jack for SSBmode.Available Values: MIC/REARDefault Setting: MICDescription: Selects the microphone input jack to beused in SSB mode.FRONT:Inputs from the MIC jack on the front panel.DATA:Disables the microphone circuit on the frontpanel and inputs from the USB jack or RTTY/DATA jack on the rear panel.109 SSB OUT LEVELFunction: Sets the level of the SSB receiving signal out-put from the RTTY/DATA jack.Available Values: 0 - 100Default Setting: 50110 SSB PTT SELECTFunction: Sets the PTT transmit control for the SSB sig-nal.Available Values: DAKY/RTS/DTRDefault Setting: DAKYDescription: Selects the PTT transmit control methodfor the SSB signal.DAKY:Controls the transmit signal from the RTTY/DATA jack (pin 3) on the rear panel.DTR:Controls the transmit signal from the USB virtualCOM/DTR ports.RTS:Controls the transmit signal from the USB virtualCOM/RTS ports.111 SSB PORT SELECTFunction: Sets the input jack of the SSB signal.Available Values: DATA/USBDefault Setting: DATADescription: Selects the input jack of the SSB signalwhen “108 SSB MIC SELECT” is set to “DATA”.DATA:Inputs from the RTTY/DATA jack on the rearpanel.USB:Inputs from the USB jack on the rear panel.M enu M oDe