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Icom IC-703 - Specifications; I General; I Transmitter; I Receiver

Icom IC-703
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16
90
SPECIFICATIONS
General
Frequency coverage : Receive
30 kHz60.00000 MHz*
Transmit
1.800 1.99999 MHz*
3.500 3.9999 MHz*
7.000 7.300 MHz*
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 54.000 MHz*
*Depending on version.
Mode : SSB, CW, AM, FM, RTTY
Number of memory : 105
(split memory: 99; scan edges: 6)
channels
Antenna connector : SO-239/50
Usable temperature : –10°C to +60°C (+14°F to +140°F)
range
Frequency stability : Less than ±0.5 ppm
(0°C to +50°C; +32°F to +122°F).
Power supply : 9–15.87 V DC (negative ground)
requirement
Current drain :
Transmit 2.0 A typ.
(TX 5 W at 9.6 V DC)
3.0 A typ.
(TX 10 W at 13.8 V DC)
Receive squelched 300 mA typ.
(at 9.6 V DC)
max. audio 450 mA typ. (at 9.6 V DC)
1.2 A
(at 13.8V DC)
Dimensions : 167(W) ×58(H) × 200(D) mm,
(projections not included) 6
9
16(W) × 2
5
16(H) × 7
7
8(D) in
Weight : 2.0 kg (4 lb 4 oz)
CI-V connector : 2-conductor 3.5 (d) mm (
1
8˝)
ACC connector : 13-pin
Transmitter
Output power :
SSB, CW, FM, RTTY 0.1–5 W
(at 9.6 V DC)
0.1–10 W (at 13.8 V DC)
AM 0.1–2 W (at 9.6 V DC)
0.1–4 W
(at 13.8 V DC)
Modulation system :
SSB Balanced modulation
AM Low level modulation
FM Variable reactance modulation
Spurious emissions : Less than –60 dB*
*spurious freq.: below 30 MHz: –50 dB; above 50 MHz: –60 dB
Carrier suppression : More than 40 dB
Unwanted sideband : More than 50 dB
Microphone : 8-pin modular jack (600 )
connector
KEY connector : 3-conductor 6.35 (d) mm (
1
4")
Receiver
Receive system :
Double-conversion superheterodyne
Intermediate frequencies:
1st 64.455 MHz
2nd 455 kHz
Sensitivity
at pre-amp ON (typical):
Squelch sensitivity
(threshold; preamp ON) :
SSB/CW/RTTY/AM Less than 5.6 µV
FM Less than 0.32 µV
Selectivity*
(typical) :
SSB/CW More than 2.4 kHz/6 dB
Less than 4.0 kHz/60 dB
AM/FM-N More than 9.0 kHz/6 dB
Less than 20.0 kHz/50 dB
FM More than 15.0 kHz/6 dB
Less than 30.0 kHz/50 dB
*Without optional filter and with mid
band selected.
Spurious and image rejection ratio:
HF bands More than 70 dB
50 MHz band More than 65 dB
(except IF through)
Audio output power : More than 0.5 W at 10% distortion
with an 8 load (at 9.6 V DC)
More than 1.0 W
at 10% distortion
with an 8 load (at 13.8 V DC)
RIT variable range : ±9.99 kHz max.
PHONES connector : 3-conductor 3.5 (d) mm (
1
8˝)/8
EXT SP connector : 2-conductor 3.5 (d) mm (
1
8˝)/8
Antenna tuner
Matching impedance range:
HF bands 16.7 to 150 unbalanced
(Less than VSWR 3:1)
50 MHz band 20 to 125 unbalanced
(Less than VSWR 2.5:1)
Tuning accuracy : VSWR 1.5:1 or less
Insertion loss : Less than 1.0 dB
(after tuning)
Frequency
range
SSB/CW/RTTY
10 dB S/N
AM
10 dB S/N
FM
12 dB SINAD
0.5–1.8 MHz 13 µV
1.8–28 MHz
0.16 µV 2.0 µV
28–29.7 MHz 0.5 µV
50–54 MHz 0.13 µV 1.0 µV 0.25 µV
15
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