Icom IC-751A Instruction Manual

SECTION 1
FEATURES
COMPLETE
HF
RADIO
•ALL
BAND,
ALL
MODE
The
IC-751A
covers
all Amateur
HF frequencies from
1.8MHz
to
ALL
SOLID-STATE
30MHz,
including
the three
new bands
of
10MHz,
18MHz and
24MHz. It also
offers SSB,
CW, AM,
FM
and
RTTY operating
modes as
standard
features. All circuits
in the
IC-751A,
including
the
driver and
final
power stages,
are completely
solid-state
produc-
ing a
final output
power of
100 watts.
The IC-751A
features general coverage
receive
capability
with
a
tuning range
from
100kHz
to
30MHz.
This wide range
is
accom-
plished
by means
of
up-conversion using a high side IF and
a
CPU
control system.
For CW (Jperators,
both
semi
break-in and
full break-in are
provided
for
smooth,
fast and
natural CW
conversations.
OUTSTANDING
RECEIVER PERFORMANCE
•
ICOM'S
DFM
SYSTEM
The ICOM
DFM (Direct
Feed
Mixer) feeds
the
incoming
signals
directly into
a
high
level first
mixer developed
by
ICOM. This
advanced system
produces
a
higher
spurious response
rejection ratio,
a
higher
receiver
sensitivity
and
a
wider
dynamic range.
•
105dB
DYNAMIC
RANGE The IC-751 A has
a
105dB
dynamic range.
Even with the
PREAMP
switched ON, the dynamic range
is
approximately
lOOdB.
•
PREAMP
AND
ATTENUATOR
Both a
lOdB
preamplifier PLUS a
20dB attenuator are
installed
as
INCLUDED
standard equipment.
The preamplifier
increases
receiver
sensitivity
while the attenuator
provides added
protection
from
intermodula-
tlon problems.
NEWLY
DEVELOPED
CPU
•VARIOUS
SCANNING
FUNCTIONS
Memory Scan
allows
monitoring
of all
memory channels
or only
those
storing
a
particular
mode.
Programmed Scan
provides
scan-
ning
between any
two
programmed
frequencies. Mode
Scan
auto-
matically
monitors
only
memories
containing
frequencies
with a
similar mode.
In
all cases,
the Auto-stop
function
halts the
scan
when
a
signal
is
received and
the
Resume
function
restarts
the
scan
when the
frequency is
clear.
•32
MEMORIES
Thirty-two
programmable
memories
are
provided to
store
mode
and
frequency,
and the
CPU
is
backed
up
by
an
internal
lithium
battery
to
maintain
the memories
for
up to
ten years.
Scanning
of fre-
quencies
or
memories is
possible
from
either
the
transceiver
or the
HM-36 scanning
microphone.
The
IC-PS30
external
AC
power supply was
developed
especially
for
ICOM base
radios and
matches the
style
and size
of the IC-751
A.
This
power supply
uses a
recently
designed
switching
regulator,
resulting
in
light weight
and
high
efficiency.
•
IC-2KL
The IC-2KL
is a
completely solid-state,
HF broadband
linear am-
plifier
with 500
watts output
to
give your
signal
the extra
boost
needed for solid contacts
when propagation is
poor.
OPTIONS
AVAILABLE
•
IC-PS30
•
GENERAL
COVERAGE
RECEIVER
•
FULL
BREAK-IN
FUNCTION
-
1
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Icom IC-751A Specifications

General

Brand	Icom
Model	IC-751A
Category	Transceiver
Language	English