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Page 58 FT-991 OperaTing Manual
AdjuStAble receiver Audio Filter
The
FT-991
includesanadjustablereceiveraudiolter,thatprovidesprecise,independentcontrolofthelow;andupper
audio ranges.
tools for coMfortable anD effective reception
1. Press the
MENU
buttontoentertheMenumode.
2. Rotatethe
MULTI
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
applytothe
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 “
094
”through
097
”applytothead-
justment ofthe RX audiolter in theRTTYmode,
and Menu items “
104
”through
107
”applytothe
adjustmentoftheRXaudiolterintheSSBmode
3. Touch
[
SELECT
]
ontheLCD.
MULTI Knob
MENU Button
F$QEV
#/ .% 67'(4 3
#/ .% 6715. 2'
#/ *% 67'(4 3
1((
1((



4. Rotatethe
MULTI
knobtoadjustthereceiveraudio
response as desired.
5. Touch
[
ENTER
]
onthe LCDto savethe newset-
ting.
F$QEV
#/ .% 67'(4 3
#/ .% 6715. 2'
#/ *% 67'(4 3

1((
*\


6. Pressthe
MENU
buttonortouch
[
BACK
]
on the
LCDtoexittonormaloperation.
Mode Menu iteM
AvAilAble vAlueS
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
094 RTTY LCUT FREQ
OFF/100(Hz) - 1000(Hz)
095 RTTY LCUT SLOPE
6dB/oct / 18dB/oct
096 RTTY HCUT FREQ
700(Hz) - 4000(Hz)/OFF
097 RTTY HCUT SLOPE
6dB/oct / 18dB/oct
SSB
104 SSB LCUT FREQ
OFF/100(Hz) - 1000(Hz)
105 SSB LCUT SLOPE
6dB/oct / 18dB/oct
106 SSB HCUT FREQ
700(Hz) - 4000(Hz)/OFF
107 SSB HCUT SLOPE
6dB/oct / 18dB/oct
60


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