Icom IC-T7A Service Manual page 4

RECEIVER
TRANSMITTER
GENERAL
SECTION SPECIFICATIONS
Frequency
coverage
Europe
SE
Asia
Australia
144
MHz
band
430
(440)
MHz
band
Tx:
144
MHz-148
MHz
Rx:
118
MHz-174
MHz*'
Tx:
440
MHz-450
MHz
Rx:
400
MHz-470
MHz*'
144
MHz-146
MHz
430 MHz-440
MHz
Tx:
144
MHz-148
MHz
Rx:
118 MHz-174
MHz*'
430
MHz-440
MHz
Tx:
144 MHz-146
MHz
Rx:
136
MHz-174
MHz*'
Tx:
430 MHz-440
MHz
Rx:
400
MHz-470
MHz*'
144 MHz-148
MHz
430 MHz-440
MHz
Mode
Frequency
stability
(±0°Cto
+50
°C.
+32
T
to+122T)
Tuning steps
Antenna
connector
Externa!
DC
power
Guaranteed
frequency
range: *'144 MHz-148
MHz,
*'440
MHz-450 MHz, *'430
MHz-440
MHz
FM
(F3E)
±
5
ppm
5, 1 0, 1
2.5,
1 5,
20, 25,
30
or
50
kHz
BNC
(50
Q)
4.5
to
16
V DC
Tv
High
power
1.2A(typ.) 1.3
A
(typ.)
1
A
Low power
0.6
A
(typ.)
0.6
A
(typ.)
Rv
Rated audio
140
mA
(typ.)
150
mA
(typ.)
nx
Power saved 16
mA
(typ.)
1
9
mA
(typ.)
Usable temperature range
Dimensions
(Projections not included)
Weight
RF
output
power
(at
13,5
V
DC)
Modulation system
Max. frequency
deviation
Spurious emissions
External mic.
connector
Receive system
Intermediate frequencies
Sensitivity
Squelch
sensitivity
Selectivity
Spurious
and image
rejection
ratio
Audio output
power
(at
13.5 V)
External
speaker connector
-10
'C to
+60
°C (+14
T
to
+140
T
)
57 (W)
X
110
(H)
X
27 (D)
mm;
2
'A
(W)
x
4S/i6 (H)
x
1
Vis (D)
in (with
BP-170/171)
57 (W)
X 122
(H)
X
29
(D)
mm;
2 Va
(W)
x
4
'3/,e
(H)
x
1
Vs
(D)
in
(with
BP-180)
285
g
:
10.1
oz
(with
BP-170 and
dry
cell batteries)
305
g
;
10.8 oz
(with
BP-171)
320
g;
11.3
oz
(with
BP-180)
High: 4.0
W
Low:
0.5
W
High: 3.0
W
Low: 0.5
W
Variable
reactance frequency modulation
±5.0 kHz
Less than
-60
dB
3-conductor 2.5
mm
(Vto")
(2
kQ)
Double-conversion superheterodyne
1st:
45.150
MHz,
2nd:
450 kHz
Less than 0.16
pV
(typical) for
12
dB SINAD
Less than 0.16
pV
More
than 30 kHz/
-
60
dB,
Less
than
1
5 kHz/
-
6
dB
More
than 60
dB
(More than
50 dB
at Vz IF)
More
than
50 dB
More
than
250
mW
at
1
0
%
distortion with
an 8
£5
toad
3-conductor
3.5
mm
(Vs") (8
Q)
1-1