Icom IC-706 Service Manual page 4

SECTION 1 SPECIFICATIONS
AM
(for 10 dB SIN)
AM
FM
Intermediate fr :lCluencies:
MODE
1st
2nd 3rd
SSB 69.0115 MHz 9.0115 MHz
-
AM 69.0100 MHz 9.0100 MHz
-
CW 69.0106 MHz 9.0106 MHz
-
FM 69.0115 MHz 9.0115 MHz 455 kHz
RTIY 69.0105 MHz 9.0105 MHz
-
WFM 70.7000 MHz 10.0115 MHz
-
...
•
RECEIVER
• Receive system
SSB, CW, AM, RTIY, Double-conversion superheterodyne
WFM
FM Triple-conversion superheterodyne
• SensitIVIty (preamp ON):
SSB, CW 1.8-29.9950 MHz·
(for 10 dB SIN) Less than 0.16 JlV
50-54 MHz
Less than 0.16 JlV
144-148 MHz
Less than 0.16 JlV
0.5-1.8 MHz
Less than 31.6 JlV
1.8-29.9950 MHz·
Less than 2.0 JlV
50-54 MHz
Less than 2.0 JlV
144-148 MHz
Less than 2.0 JlV
FM 28.0-29.7 MHz
(for 12 dB SINAD) Less than 0.5 JlV
50-54 MHz
Less than 0.3 JlV
144-148 MHz
Less than 0.3 JlV
WFM 76-108 MHz
(for 12 dB SINAD) Less than 10.0 JlV
·Some frequency ranges outside of
the ham bands are not guaranteed.
• Squelch sensitivity (preamp ON) :
SSB Less than 5.6 JlV at threshold
FM Less than 0.5 JlV at threshold
• Selectivity (normal filter selection) :
SSB, CW, RTIY More than 2.3 kHz/-6 dB
Less than 4.0 kHz/-60 dB
More than 6.0 kHz/-6 dB
Less than 20.0 kHz/-40 dB
More than 12.0 kHz/-6 dB
Less than 30.0 kHz/-50 dB
FM narrow More than 8.0 kHz/-6 dB
• Spurious and image : More than 70 dB (HF bands only)
rejection ratio
• Audio output power : More than 2.0 W
(at 10% distortionwith an 8
n
load)
• RIT variable range : ±1.0 kHz max.
5-100W
2-40W
1-10W
1-4 W
SSB, CW, FM, RTIY
AM
SSB, CW, FM, RTIY
AM
: Less than ±0.0007% from 1 min. to
60 min. after power ON. After that,
rate of stability change is less than
±0.0001%/hr. at +25°C (+77°F).
Temperature fluctuations (O°C to
+50°C; +32°F to +122°F) less than
±0.0005%.
: 13.8 V DC ± 15% (20 A)
: Transmit 20 A
Receiver squelched 1.7 A
max. audio 1.9 A
: 167(W) x 200(D) x 58(H) mm
6
9 /16(W) x
7
7
/8(D)
x 2 9 /32(H) in
(projections not included)
: 2.5 kg (5.5 Ib)
144 MHz
• Mode
GENERAL
• Frequency coverage: Receive
30 kHz-200 MHz
Range restricted in some versions
Specifications guaranteed:
500 kHz-4.00 MHz
4.50 MHz-8.00 MHz
9.0 MHz-29.955 MHz
50 MHz-54 MHz
144 MHz-148 MHz
Transmit
1.800-1.99999 MHz·'
3.500-3.9999 MHz·2
7.000-7.300 MHz·3
10.100-10.150 MHz
14.000-14.350 MHz
18.068-18.168 MHz
21.000-21.450 MHz
24.890-24.990 MHz
28.000-29.700 MHz
50.000-50.400 MHz·4
144.000-148.000 MHz·5
., 1.810-1.850 MHz France version
.23.500-3.800 MHz France version
.37.000-7.100 MHz France version
.45.000-5.200 MHz Denmark version
.5144.000-146.000 MHz all European
versions
: SSB, CW, AM, FM, WFM, RTIY
(WFM is for receiver only)
• Number of memory : 102 (split memory: 99; scan edge: 2;
channels call channel: 1)
• Antenna impedance : 50
n
nominal
• Usable temperature : -10°C to +60°C (+14 of to +140°F)
range
• Frequency stability
• Power supply
requirement
• Current drain
(at 13.8 V DC)
• Dimensions
• Weight
TRANSMITTER
• Output power
HF, 50 MHz
• Spurious emissions
HF Less than -50 dB
5(1 MHz Less than -60 dB
144 MHz Less than -60 dB
• Carrier suppression : More than 40 dB
• Unwanted sideband : More than 50 dB
• Microphone : 600
n
impedance
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