Icom ic-751a Instruction Manual page 7
Hf all band transceiver general coverage receiver
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Also See for ic-751a:
- Service manual (151 pages) ,
- Instruction manual (64 pages) ,
- Common questions (7 pages)
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2-3
RECEIVER
Receive
system
Receive
modes
Intermediate frequencies
Sensitivity
(PREAMP
ON)
Squelch
sensitivity
Selectivity
Spurious
and image
response
rejection
:
Audio
output
:
Notch
filter
attenuation
:
R
IT
variable
range
:
SSB,
CW, RTTY,
AM
Quadruple-conversion superheterodyne with continuous
bandwidth
control.
FM
T
riple-conversion
superheterodyne.
SSB
(J3E)
Upper
and
Lower
sideband
CW
(A1A)
FM
(F3E)
RTTY
(F1A)
AM
(A3E)
1st:
All
modes
70.451
5MHz
2nd:
SSB
9.0115MHz
CW,
RTTY
9.0106MHz
FM,
AM
9.0100MHz
3rd:
All
modes
455kHz
4th:
SSB
9.0115MHz
CW,
RTTY
9.0106MHz
AM
9.0100MHz
SSB,
CW,
RTTY
0.1
~
0.5MHz
Less
than
0.5/iV for
lOdB
S/N
0.5
~
1
.6MHz
Less
than
1/iV for
lOdB
S/N
1.6
-
30.0MHz
Less
than 0.15/iV
for
lOdB
S/N
AM
(NARROW
FILTER
selected)
0.1
~
0.5MHz
Less
than
3jLtV
for
lOdB
S/N
0.5
~
1.6MHz
Less
than
6jLtV
for
lOdB S/N
1.6
~
30.0MHz
Less
than
IjuV for
lOdB S/N
FM
28
~
SOM
Hz
Less
than 0.3
mV
for
1
2d B
SI
NAD
1
.6
~
SOM
Hz
Less
than
0.3/iV
SSB,
CW,
RTTY
(WIDE FILTER
selected),
AM
(NARROW)
2.3kHz
at
—
6dB
points
3.8kHz
at
-60dB
points
CW,
RTTY
500Hz
at
—
6dB
points
1.3kHz
at
—
60dB
points
FM
15kHz
at
—6dB
points
30kHz
at
—
50dB
points
AM
(WIDE
FILTER
selected)
8kHz
at
—
6dB
points
18kHz
at
—
50dB
points
Image
rejection
More
than
80dB
IF rejection
More
than
70dB
More
than
2.6 watts
at
10%
distortion
with 8
ohm
load.
More
than
45dB
±9.9kHz
-
3
-
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