Icom ic-751a Instruction Manual page 41

Hf all band transceiver general coverage receiver
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2)
Rotate
INCREMENTAL TUNING
CONTROL
counterclockwise.
Receive
:
14.2639MHz
Transmit:
14.2678MHz
2)
The
receive
frequency can be
shifted
in
10Hz
steps
by
adjusting
the
INCREMENTAL TUNING CONTROL.
Rotating the control
in
the
(+)
direction
raises
the
receive
frequency,
and
in
the
{—
)
direction
lowers
it.
3)
To
turn
OFF
the
RIT
function,
push
the
RIT
SWITCH
again.
The
letters
"RIT"
and
the
amount
of
shift
are
no
longer
dis-
played.
4)
When
the
RIT
circuit
is
OFF,
the transmit
and
receive
frequencies
are
the front panel displayed frequency.
They
are
the
same
regardless
of the
amount
of
shift
previously selected
with
the
INCREMENTAL TUNING CONTROL.
However,
the
RIT
shift
value
is
stored
in
a
memory
for
later
use
when
the
RIT
function
is
again activated.
5)
Push the
RIT/^TX
CLEAR
SWITCH.
USB
RIT
I8.PS1.8
n n
ri
i
LI.
LI
LI
1
VFO k
5)
To
clear
the
RIT
shift,
push
the
RIT/zITX
CLEAR
SWITCH.
The
shift
value
resets
to 0.0
and
the
receive
and
transmit frequencies
become
the
same whether
the
RIT
function
is
ON
or
OFF.
6)
Push
FUNCTION
SWITCH,
then push
RIT/^lTX
CLEAR
SWITCH.
USB
RIT
/
V, !?
6
1.8
-3
5 0
1
m
A
^TX OPERATION
6)
To
add
the
RIT
shift
value to the displayed
frequency,
push
the
FUNCTION
SWITCH,
then push the
HWAJX
CLEAR
SWITCH.
The RIT
shift
value automatically
resets
to
0.0.
m
cw
1393
a
The
ATX
circuit
allows the transmit
frequency to be
shifted
up
to
9.9kHz
to
either side
of the
receive
frequency without
moving
the
receive
frequency.
This function
is
similar
in
operation to the
RIT
function.
1)
Push
the
^TX
SWITCH
to turn
ON
the
^TX
circuit.
Receive
:
14.2678MHz
Transmit:
14.2678MHz
"^ITX"
displays.
1
1
1
USB
AU
I
H.
P
8
18
0
0 0
;
2)
Rotate
the
INCREMENTAL TUNING
CONT-
ROL
counterclockwise.
Receive
:
14.2678MHz
Transmit:
14.2639MHz
USB
AM
/
U
J
L
~l
C
1
1.
L
LI
1.
L
1-5.5
0
!
VFO A
1)
Push
the
/dTX
SWITCH
to turn
ON
the
^TX
circuit.
The
letters
"ATX"
and
the
amount
of
shift
are displayed.
2)
The
transmit
frequency can be
shifted
in
10Hz
steps
by
adjust-
ing
the
INCREMENTAL TUNING CONTROL.
-37 -

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