Page 60 FT-
991
The
includes an adjustable receiver audio lter, that provides precise, independent control of the low; and up-
per audio ranges.
1. Press the
button to enter the Menu mode.
2. Rotate the
knob to nd Menu items “
041
”
through “
044
” these parameters apply to the adjust-
ment of the receiver audio filter in the AM mode,
Menu items “
050
” through “
053
” apply to the
adjustment of the RX audio lter in the CW mode,
Menu items “
066
” through “
069
” apply to the ad-
justment of the RX audio lter in the DATA mode,
Menu items “
092
” through “
095
” apply to the ad-
justment of the RX audio lter in the RTTY mode,
and Menu items “
102
” through “
105
” apply to the
adjustment of the RX audio lter in the SSB mode
3. Touch
[
]
on the LCD.
MULTI Knob
MENU Button
F$QEV
#/ .% 67'(4 3
#/ .% 6715. 2'
#/ *% 67'(4 3
1((
1((
4. Rotate the
knob to adjust the receiver audio
response as desired.
5. Touch
[
]
on the LCD to save the new set-
ting.
F$QEV
#/ .% 67'(4 3
#/ .% 6715. 2'
#/ *% 67'(4 3
1((
*\
6. Press the
button or touch
[
]
on the
LCD to exit to normal operation.
AM
041 AM LCUT FREQ
OFF/100
(
Hz
)
- 1000
(
Hz
)
042 AM LCUT SLOPE
6dB/oct / 18dB/oct
043 AM HCUT FREQ
700
(
Hz
)
- 4000
(
Hz
)
/OFF
044 AM HCUT SLOPE
6dB/oct / 18dB/oct
CW
050 CW LCUT FREQ
OFF/100
(
Hz
)
- 1000
(
Hz
)
051 CW LCUT SLOPE
6dB/oct / 18dB/oct
052 CW HCUT FREQ
700
(
Hz
)
- 4000
(
Hz
)
/OFF
053 CW HCUT SLOPE
6dB/oct / 18dB/oct
DATA
066 DATA LCUT FREQ
OFF/100
(
Hz
)
- 1000
(
Hz
)
067 DATA LCUT SLOPE
6dB/oct / 18dB/oct
068 DATA HCUT FREQ
700
(
Hz
)
- 4000
(
Hz
)
/OFF
069 DATA HCUT SLOPE
6dB/oct / 18dB/oct
RTTY
092 RTTY LCUT FREQ
OFF/100
(
Hz
)
- 1000
(
Hz
)
093 RTTY LCUT SLOPE
6dB/oct / 18dB/oct
094 RTTY HCUT FREQ
700
(
Hz
)
- 4000
(
Hz
)
/OFF
095 RTTY HCUT SLOPE
6dB/oct / 18dB/oct
SSB
102 SSB LCUT FREQ
OFF/100
(
Hz
)
- 1000
(
Hz
)
103 SSB LCUT SLOPE
6dB/oct / 18dB/oct
104 SSB HCUT FREQ
700
(
Hz
)
- 4000
(
Hz
)
/OFF
105 SSB HCUT SLOPE
6dB/oct / 18dB/oct
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