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SWITCH/CONTROL
POSITION
MODE
CW
or
CW NARROW
VOX
ON
(IN)
KEY
SPEED
12
O'CLOCK
VOX DELAY
10
O'CLOCK
TRANSMIT/RECEIVE
RECEIVE
• FIH.L
BREAK-IN
OPERATION WITH
AUTOMATIC
KEYING USING
AN
IAMBIC
PADDLE
7-5
SPLIT
(DUPLEX)
OPERATION
(Example)
Receiving:
7.057MHz/CW
Transmitting:
7.255MHz/LSB
Receiving
(VFO
A)
CW
/
n
C 1
n
1
.
u J
1.
LI
LI
1
SPI
VFO
A
Transmitting
(VFO
B)
\7
LSB
7
.? 5S.C!
n
1
LI
1
SPI
VFO
B
7-6
FM REPEATER OPERATION
2)
Adjust the
KEY
SPEED
CONTROL
for
a
suitable
keying
speed.
3)
Set the transmit
release
delay
time
to
suit
your
keying speed
by
adjusting
the
VOX
DELAY CONTROL
while
keying.
RotatS
the control clockwise to
increase
the delay.
4)
The
transmit/receive switching
is
automatically
performed by
the
transceiver.
1
)
Set the switches
and
controls
as
shown
in
the
table.
SWITCH/CONTROL
POSITION
MODE
CW
or
CW
NARROW
VOX
ON
(IN)
KEY
SPEED
12
O'CLOCK
VOX DELAY
FULL
(MAX.
COUNTERCLOCKWISE)
TRANSMIT/RECEIVE
RECEIVE
2)
Adjust the
KEY
SPEED
CONTROL
for
a suitable
keying
speed.
3)
The
transmit/receive switching
is
automatically
performed by
the
transceiver.
The
purpose
of the
split
function
is
to
allow an operator the option
of transmitting
on
a
frequency
different
from
the
receive
frequency.
Push
the
SPLIT
SWITCH
to turn the
function
ON
or
OFF.
1
)
Store the
frequency
7.057MHz
in
VFO A
and
7.255MHz
IN
VFO
B.
2)
Push
the
VFO
A/B
SWITCH
to
select
VFO
A, then push the
SPLIT
SWITCH
to
select
the
split
function.
The
letters
"SPT"
on
the display
illuminate.
3)
The
receive
frequency
is
now
set
for
7.057MHz
and
the transmit
frequency
is
7.255MHz.
Push
the
VFO
A/B
SWITCH
once
again
in
order to
receive
on
7.255MHz
and
transmit
on 7.057MHz.
Each
VFO
also stores
the operating
mode
in
addition to the operat-
ing
frequency. This
allows
crossmode
contacts to be
made
easily.
A
tone encoder
is
often required to access
HF FM
repeaters.
The
UT-30
PROGRAMMABLE
TONE ENCODER
is
available
as
an
accessory
for use
with
the IC-751 A.
Refer
to
SECTION
10
-
5
for installation instructions.
-
34
-
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