Icom ic-751a Instruction Manual page 7

Hf all band transceiver general coverage receiver
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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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