Icom IC-751A - Page 11

®HAM
BAND/GENERAL COVERAGE
SWITCH
[HAM/GENEl
HAM/GENE SPEECH
MODE-S SCAN
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©SPEECH
SWITCH
HAM/GENE SPEECH
MODE-S SCAN
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CW NARROW
(NAR):
Push the FUNCTION
SWITCH
first,
then
push
the
CW
SWITCH
for
operation
with the 455kHz
narrow
CW filter.
There
is
no
audio
output from
the
speaker if the
optional
filter
is not
installed.
SSB:
Push
to automatically
select
upper
sideband
(USB)
operation
on
the 10MHz
band
and
above,
and
lower
sideband
(LSB)
operation
on
the 7MHz
band
and
below.
In
the
GENERAL
COVERAGE
mode,
USB is
selected
from
9MHz
upwards,
and
LSB
is
selected
below
9MHz.
SSB
REVERSE:
Push
the
FUNCTION
SWITCH
first,
then
push
the
SSB
SWITCH
to select
LSB
on the 10MHz
band
and
above,
and
USB
on the
7MHz
band and
below.
In the
GENERAL
COVERAGE
mode,
LSB
Is
selected
from
9MHz
upwards,
and USB
is selected
below 9MHz.
RTTY:
Push
for
RTTY
operation.
RTTY
NARROW
(NAR):
Push
the
FUNCTION
SWITCH
first, then
push the
RTTY
SWITCH
for
RTTY
operation
using
the
optional
455kHz
narrow
CW
filter.
There
is no audio
output from
the
speaker
if
the
optional filter
is
not installed.
This
switch
changes
the
IC-751A
between
the Amateur
Band
and
General
Coverage
modes.
In the
Amateur Band
mode, the
trans-
ceiver
functions
on
any of
the HF
amateur
bands from
1.8
to
28MHz.
In
the General
Coverage
mode,
the receiver
functions on
ail
frequencies
from
0.1 to 30MHz.
The
IC-751A
does
not
transmit
while in
the
General
Coverage
mode.
This switch
activates
the optional
IC-EX310
speech synthesizer
which
announces
the displayed
frequency
in English.
®MODE SCAN SWITCH [MODE
S]
HAM/GENE SPEECH
MODE-S
SCAN
o a
a
This
switch
engages
the selective
mode function.
Only memory
channels
with
the same
operating
mode
as is displayed
just prior
to
pushing
this switch
are
selected
when
the TUNING
CONTROL
or
the
scan
function is
used. See
SECTION
8 for a
full
description of
the
IC-751
A scanning
systems.
®SCAN START/STOP
SWITCH
[SCAN]
HAM/GENE
SPEECH
MODE-S SCAN
USB
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C J LI. LI
C,
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SCAN VFO
A
—
4
_
The
“SCAN"
indicator
lights when
any
scan
function
is activated.
®
TUNING
CONTROL
Rotate
this control
clockwise
to increase,
or
counterclockwise
to
decrease
the
frequency
or memory
channel
number.
The
frequency
actually
changes
in 10Hz
steps in all
operating
modes
at all times,
however,
the
tuning
rate is 10Hz
if the
control
is
rotated slowly,
but
jumps
to
50Hz if
the
control
is
rotated
more rapidly.
This
allows
both
fine
and
coarse tuning
of
your operating
frequency
without
removing
your
hand from
the
TUNING
CONTROL. Refer
to
the
TUNING
SPEED
SWITCH
description
below.
This
switch
starts and
stops all
scan
functions.
When
the
scan
restarts, it
begins
from the frequency
on which the
scan halted
while
in the
programmed
scan mode,
or
from
the highest
memory channel
while
in
the
memory
mode.
See
SECTION
8
for a full description
of
the
IC-751
A scanning
systems.
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