Yaesu FT-991 Operating Manual

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Contents

Page 124FT-991 O PERA T I N G M A N U A L001 AGC FAST DELAYFunction: Sets the AGC-FAST DELAY voltage decaycharacteristics.Available Values: 20 - 4000msec (20msec/step)Default Setting: 300msecDescription: Sets the AGC voltage decay characteristicsin 20 msec steps after the input signal level becomeslower than the AGC detection level and the HOLDtime is over.002 AGC MID DELAYFunction: Sets the AGC-MID DELAY voltage decaycharacteristics.Available Values: 20 - 4000msec (20msec/step)Default Setting: 700msecDescription: Sets the AGC voltage decay characteristicsin 20 msec steps after the input signal level becomeslower than the AGC detection level and the HOLDtime is over.003 AGC SLOW DELAYFunction: Sets the AGC-SLOW DELAY voltage decaycharacteristics.Available Values: 20 - 4000msec (20msec/step)Default Setting: 3000msecDescription: Sets the AGC voltage decay characteristicsin 20 msec steps after the input signal level becomeslower than the AGC detection level and the HOLDtime is over.004 HOME FUNCTIONFunction: Selects the information to be displayed on theHOME screen.Available Values: SCOPE/FUNCTIONDefault Setting: SCOPEDescription: Selects the information to be displayed onthe HOME screen (main screen).SCOPE:Displays the scope screen.FUNCTION:Displays the function key screen.005 MY CALL INDICATIONFunction: Sets the display time duration for MY CALL.Available Values: OFF - 5secDefault Setting: 1secDescription: Sets the display time duration for a mes-sage such as the call sign set from MY CALL whenturning on the power.006 DISPLAY COLORFunction: Sets the background color of the VFO-A fre-quency display field.Available Values: BLUE/GRAY/GREEN/ORANGE/PURPLE/RED/SKY BLUEDefault Setting: BLUEDescription: Sets the background color of the VFO-Afrequency display field. The color may be previewedbefore the selection is confirmed.007 DIMMER LEDFunction: Sets the key LED brightness level.Available Values: 1 / 2Default Setting: 2Description: Sets the brightness level of the LED indica-tor located above the Main Tuning Dial knob. Theeffect of the changes may be observed as the bright-ness level is adjusted. “1” is the darkest.008 DIMMER TFTFunction: Sets the TFT display brightness level.Available Values: 0 - 15Default Setting: 8Description: Sets the brightness level of the TFT display.The effect of the changes may be observed as thebrightness level is adjusted. The higher the setting,the brighter the illumination becomes.009 BAR MTR PEAK HOLDFunction: Sets the bar meter peak hold.Available Values: OFF/0.5/1.0/2.0 (sec)Default Setting: OFFDescription: Sets the time length the maximum valuereading is shown on the meter (peak hold).OFF:Disables the peak hold function.0.5/1.0/2.0:Holds the maximum value for the time lengththat is set.010 DVS RX OUT LEVELFunction: Sets the voice memory monitoring level.Available Values: 0 - 100Default: 50Description: You can adjust the voice memory monitor-ing level. The higher the setting, the higher the out-put level becomes.011 DVS TX OUT LEVELFunction: Sets the microphone output level for the voicememory.Available Values: 0 - 100Default: 50Description: The microphone output level may be ad-justed to the operators own voice and preference.For example, the output level may be set differentlybetween the microphone and the voice memory. Thehigher the setting, the higher the output level be-comes.M enu M oDe