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ICOM: IC-756PROIII
IC-756PROIII業餘HF/50MHZ座台機
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| 規格說明
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| General |
Frequency coverage
USA version
Rx
Tx
European version
Rx
Tx |
| 0.030– 60.000MHz*1 |
| 1.800– 1.999MHz |
3.500– 3.999MHz |
| 5.3305, 5.3465, 5.3665,
5.3715, 5.4035MHz*2 |
| 7.000– 7.300MHz |
10.100–10.150MHz |
| 14.000– 14.350MHz |
18.068–18.168MHz |
| 21.000– 21.450MHz |
24.890–24.990MHz |
| 28.000– 29.700MHz |
50.000–54.000MHz |
0.030– 60.000MHz*1 |
| 1.810– 1.999MHz |
3.500– 3.800MHz |
| 7.000– 7.100MHz |
10.100–10.150MHz |
| 14.000– 14.350MHz |
18.068–18.168MHz |
| 21.000– 21.450MHz |
24.890–24.990MHz |
| 28.000– 29.700MHz |
50.000–52.000MHz |
*1Some freq.
bands are not guaranteed. *2 USB mode
only |
| Mode |
USB, LSB, CW, RTTY, AM, FM |
| Number of memory Ch. |
101 (99 regular, 2 scan edges) |
| Antenna connector |
SO-239×2 and phono [RCA; (50Ω)] |
| Temperature range |
–10°C to +50°C; +14°F to +122°F |
| Frequency stability |
Less than ±0.5ppm (1 min. after
power ON; 0°C to 50°C; +32°F to +122°F) |
| Frequency resolution |
1Hz |
| Power supply requirement |
13.8V DC ±15% (negative ground) |
| Power consumption |
| Tx |
Max. power |
23A |
| Rx |
Standby |
3.0A (typ.) |
| |
Max. audio |
3.5A (typ.) |
|
| Dimensions (projections not
included) |
340(W)×111(H)×285(D) mm; 133⁄8
(W)×43⁄8 (H)×117⁄32
(D) in |
| Weight (approx.) |
9.6kg; 21lb 1oz |
|
| Transmitter |
| Transmitter |
Output power
SSB, CW, RTTY, FM
AM |
(continuously adjustable)
5–100W
5–40W |
Modulation system
SSB
AM
FM |
DPSN modulation
Digital low power modulation
Digital phase modulation |
| Spurious emission |
Less than –50dB (HF bands)
Less than –60dB (50MHz band) |
| Carrier suppression |
More than 40dB |
| Unwanted sideband suppression |
More than 55dB |
| Microphone connector |
8-pin connector (600Ω) |
|
| Receiver |
| Receiver |
| Receive system |
Triple conversion superheterodyne system |
| Intermediate frequencies |
| 1st |
64.455MHz (for all modes) |
| 2nd |
455kHz (for all modes) |
| 3rd |
36kHz (for all modes) |
|
| Sensitivity (typical): |
| Frequency Range (MHz) |
SSB, CW, RTTY
(at 2.4kHz BW) |
AM
(at 6kHz BW) |
FM
(at 15kHz BW) |
| 0.50–1.799 |
— |
13μV |
— |
| 1.80–27.99 |
0.16μV*1 |
2μV*1 |
— |
| 28.0–29.99 |
0.16*1 |
2μV*1 |
0.5μV*1 |
| 50.0–54.0 |
0.13μV*2 |
1μV*2 |
0.32μV*2 |
10dB S/N for SSB, CW, RTTY and AM, 12dB SINAD for
FM
*1Pre-amp 1
is ON, *2Pre-amp 2 is ON |
Squelch sensitivity
SSB, CW, RTTY
FM |
(Pre-amp: OFF)
Less than 5.6μV
Less than 1μV |
Selectivity
SSB, RTTY (BW: 2.4kHz)
CW (BW: 500Hz)
AM (BW: 6kHz)
FM (BW: 15kHz) |
(representative value) More than
2.4kHz/–6dB
Less than 3.2kHz/–40dB
Less than 3.6kHz/–60dB
Less than 4.3kHz/–80dB
More than 500Hz/–6dB
Less than 700Hz/–60dB
More than 6.0kHz/–6dB
Less than 15.0kHz/–60dB
More than 12.0kHz/–6dB
Less than 20.0kHz/–60dB |
| Spurious and image rejection
ratio |
More than 70dB (except IF through
on 50MHz band) |
| AF output power (at 13.8V DC) |
More than 2.0W at 10% distortion
with an 8Ω load |
| RIT variable range |
±9.999kHz |
| PHONES connector |
2-pin connector 6.35 (d) mm (1⁄4″)
|
| EXT SP connector |
2-pin connector 3.5 (d) mm (1⁄4
″) /8Ω |
|
| Antenna Tuner |
| Antenna Tuner |
Matching impedance range
HF bands
50MHz band |
16.7-150Ω unbalanced*1
20-125Ω unbalanced*2
*1Less than VSWR
3:1
*2Less than VSWR 2.5:1 |
| Min. operating input power |
8 W |
| Tuning accuracy |
VSWR 1.5:1 or less (SWR after the
motor has stopped) |
| Insertion loss |
Less than 1.0dB (after tuning) |
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