Display Color; Agc Fast Delay; Dimmer Led; Dimmer Tft - Yaesu FT-991 Operating Manual

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001 AGC FAST DELAY

Function: Sets the AGC-FAST DELAY voltage decay
characteristics.
Available Values: 20 - 4000msec (20msec/step)
Default Setting: 300msec
Description: Sets the AGC voltage decay characteristics
in 20 msec steps after the input signal level becomes
lower than the AGC detection level and the HOLD
time is over.

002 AGC MID DELAY

Function: Sets the AGC-MID DELAY voltage decay
characteristics.
Available Values: 20 - 4000msec (20msec/step)
Default Setting: 700msec
Description: Sets the AGC voltage decay characteristics
in 20 msec steps after the input signal level becomes
lower than the AGC detection level and the HOLD
time is over.

003 AGC SLOW DELAY

Function: Sets the AGC-SLOW DELAY voltage decay
characteristics.
Available Values: 20 - 4000msec (20msec/step)
Default Setting: 3000msec
Description: Sets the AGC voltage decay characteristics
in 20 msec steps after the input signal level becomes
lower than the AGC detection level and the HOLD
time is over.

004 HOME FUNCTION

Function: Selects the information to be displayed on the
HOME screen.
Available Values: SCOPE/FUNCTION
Default Setting: SCOPE
Description: Selects the information to be displayed on
the HOME screen (main screen).
SCOPE:
Displays the scope screen.
FUNCTION:
Displays the function key screen.

005 MY CALL INDICATION

Function: Sets the display time duration for MY CALL.
Available Values: OFF - 5sec
Default Setting: 1sec
Description: Sets the display time duration for a mes-
sage such as the call sign set from MY CALL when
turning on the power.

006 DISPLAY COLOR

Function: Sets the background color of the VFO-A fre-
quency display field.
Available Values: BLUE/GRAY/GREEN/ORANGE/
PURPLE/RED/SKY BLUE
Default Setting: BLUE
Description: Sets the background color of the VFO-A
frequency display field. The color may be previewed
before the selection is confirmed.
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007 DIMMER LED

Function: Sets the key LED brightness level.
Available Values: 1 / 2
Default Setting: 2
Description: Sets the brightness level of the LED indica-
tor located above the Main Tuning Dial knob. The
effect of the changes may be observed as the bright-
ness level is adjusted. "1" is the darkest.

008 DIMMER TFT

Function: Sets the TFT display brightness level.
Available Values: 0 - 15
Default Setting: 8
Description: Sets the brightness level of the TFT display.
The effect of the changes may be observed as the
brightness level is adjusted. The higher the setting,
the brighter the illumination becomes.

009 BAR MTR PEAK HOLD

Function: Sets the bar meter peak hold.
Available Values: OFF/0.5/1.0/2.0 (sec)
Default Setting: OFF
Description: Sets the time length the maximum value
reading 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 length
that is set.

010 DVS RX OUT LEVEL

Function: Sets the voice memory monitoring level.
Available Values: 0 - 100
Default: 50
Description: You can adjust the voice memory monitor-
ing level. The higher the setting, the higher the out-
put level becomes.

011 DVS TX OUT LEVEL

Function: Sets the microphone output level for the voice
memory.
Available Values: 0 - 100
Default: 50
Description: The microphone output level may be ad-
justed to the operators own voice and preference.
For example, the output level may be set differently
between the microphone and the voice memory. The
higher the setting, the higher the output level be-
comes.
FT-991 O M
peraTing anual