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Page 25FT-897D OPERATING MANUAL
IF SHIFT
The receivers IF SHIFT feature is an effective interference-
reduction tool, which allows you to shift the passband re-
sponse higher or lower without changing the pitch of the
incoming signal.
RECEIVER ACCESSORIES
1. Press and hold in the CLAR/IF SHIFT button for one
second to activate the IF SHIFT feature. An icon, such
as “ ”, “ (slightly shifted to the upper side),” “ (more
shifted to the upper side),” “ (slightly shifted to the
lower side),” or “ (more shifted to the lower side)”
icon will appear at the right of the frequency display to
indicate the IF SHIFT’s current position.
2. Rotate the CLAR knob, as needed, to reduce or elimi-
nate the interference.
3. To turn the IF SHIFT feature off, again press and hold in
the CLAR/IF SHIFT button for one second. The last
setting of the IF SHIFT control will be retained until you
change it again.
If you wish to make a more permanent shift in the receivers
IF passband, use Menu Mode No-015
[
CAR LSB R
]
(for
LSB mode) or No-017
[
CAR USB R
]
(for USB mode). This
allows you to set up a higher or lower listening pitch, if you
prefer such as compared to the default passband response.
See page 57.
AGC
(
AUTOMATIC GAIN CONTROL
)
The receiver recovery time constant of the AGC system may
be modified to match your operating needs.
1. Press the
[
F
]
key momentarily, then rotate the MEM/
VFO CH knob, as needed, until Multi Function Row “l”
[
NB, AGC, AUTO
]
appears on the display.
2. Press the
[
C
]
key to toggle the AGC recovery time con-
stant among the following selections:
AUTO
FAST
SLOW
AUTO
where “AUTO” represents “FAST” on CW and DIG
(AFSK), and “SLOW” on the voice modes.
If you disable the AGC by pressing the
[
B
](
AGC
)
key (to make the parentheses disappear), the S-
meter (which monitors AGC voltage) will cease
to function. Depending on the setting of the RF Gain con-
trol, incoming signals will probably be distorted if the AGC
is turned off.
BATT- A
BATT- B
BAND
MODE
CLARAF
LOCK
PHONE
MIC
SQL
/RF
MEM/VFO CH
DWN UP
V/M
DSP
UP
DSP
F
CLARCLAR/IF SHIFT
BATT- A
BATT- B
BAND
MODE
CLARAF
LOCK
PHONE
MIC
SQL
/RF
MEM/VFO CH
DWN UP
V/M
DSP
UP
DSP
F
C
B F MEM/VFO CH
27


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