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©DIAL
LOCK
This switch
electronically
locks
the
IC-751A on
the currently
dis-
played frequency
and
deactivates
the
TUNING CONTROL.
This
function
is
useful
while
rag
chewing
or for
mobile
operation
after
the IC-751
A
is
set
to the
desired
frequency. Disengage the
dial
lock
by pushing and
releasing
the switch.
Push
this
switch to
increase
the tuning
rate
to
1kHz
while
in
any
operating
mode. The 100Hz
digit
on
the
frequency
display
clears
to
"0"
simultaneously.
Push and
release
the switch
again to return to
the
normal
tuning,
rate.
Refer to
TUNING
CONTROL
description
above.
(§)TS
INDICATOR
(8)DIAL
FUNCTION SELECT
SWITCH
[DFSl
(g)DFS
INDICATOR
@BAND
SELECT SWITCH
[BAND]
@BAND
SELECT INDICATOR
(g)
INCREMENTAL TUNING
CONTROL
[RIT/^TXll
ATX
CL
EZl
D
@NOTCH
FILTER
CONTROL
PBT-S)-
NOTCH
NOTCH
Illuminates
when
the
TS
SWITCH
function
is
activated.
While
using the
VFO
mode,
push
this
switch IN to lock the displayed
VFO
operating frequency,
and
rotate
the
TUNING
CONTROL
to
change
the displayed
memory
channel
number.
While
using the
MEMORY
CHANNEL
mode,
push
this
switch IN
to lock the displayed
memory
channel,
and
rotate
the
TUNING
CONTROL
to
change
the displayed frequency.
Illuminates
when
the
DFS SWITCH
function
is
activated.
Push
this
switch
and
rotate
the
TUNING
CONTROL
In
order to
change your band
of operation.
In
the
HAM
BAND
mode,
the
IC-751
A
jumps
to a factory
set initialization
frequency
on
each of
the
amateur bands
as
the
TUNING
CONTROL
is
rotated.
In
the
GENERAL COVERAGE
mode,
the operating frequency
is
changed
in
1MHz
steps.
Illuminates
when
the
BAND
SELECT
function
is
activated.
This control
shifts
the
receive
or transmit
frequency
by up
to
9.9kHz
to either
side
of the
frequency
indicated
on
the
main
fre-
quency
display.
Refer to the
RIT
and idTX
SWITCH
descriptions
below.
Rotating
this
control clockwise
(+ direction)
raises
the
receive or
transmit
frequency and counterclockwise
(—
direction)
lowers the
frequency.
The
shifted
amount
and
direction
is
indicated
with
smaller
numerals
to the
right
of the
main
frequency
display.
When
both
the
RIT
and idTX
circuits
are
ON,
both
the
receive
and
transmit frequencies
may
be
shifted
together
to either side of the
displayed frequency.
This control
shifts
the
notch
filter
frequency
when
the
NOTCH
SWITCH
is
ON.
Adjust the
control to
minimize
interference.
Refer
to the description for the
NOTCH
SWITCH
below and
see
SECTION
7
-
8
for
more
information.
-
8
-
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