General
| Frequency coverage (Unit: MHz) | Receiver | 0.030–199.999* | |
|---|---|---|---|
| Transmitter | 1.800–1.999 | ||
| Mode | USB, LSB, CW, RTTY, AM, DV, FM, WFM (Rx only) | ||
| No. of memory channels | Memory channels: 500 channels (100 groups) Scan edges: 25 channels Call channels: 4 channels (2 channels × 2 bands) | ||
| Antenna connector | BNC connector (50Ω)(One connector for all bands) | ||
| Power supply requirement | 13.8 V DC ±15% (with external power supply) 7.4 V DC (with BP-272) | ||
| Operating temp. range | –10°C to +60°C; +14°F to +140°F | ||
| Frequency stability | Less than ± 0.5 ppm (–10°C to +60°C; 14°F to 140°F) | ||
| Frequency resolution | 1 Hz | ||
| Current drain | 13.8 V DC | 7.4 V DC | |
TX (Max. power) | Less than 3 A (10 W) | Less than 2.5 A (5 W) | |
| RX (Max. audio) | 0.5 A (typical) | 0.8 A (typical) | |
| RX (Standby) | 0.3 A (typical) | 0.5 A (typical) | |
| Dimensions | 200×83.5×82 mm; 7.9×3.3×3.2 in (W×H×D, projections not included) | ||
| Weight | 1.1 kg; 2.4 lb (approximate; including BP-272) | ||
* Some frequency bands are not guaranteed.
Transmitter
| Output power | 13.8 V DC | 7.4 V DC | |
|---|---|---|---|
| SSB/CW/RTTY/FM/DV | 0.1 to 10 W | 0.1 to 5 W | |
| AM | 0.025 to 2.5 W | 0.025 to 1.25 W | |
| Modulation system | SSB | Digital PSN modulation | |
| AM | Digital low power modulation | ||
| FM | Digital reactance modulation | ||
| DV | Digital GMSK modulation | ||
| Spurious emissions | Less than −50 dB (HF) Less than −60 dB (50 MHz) Less than −60 dB (144/430 MHz) | ||
| Carrier suppression | More than 50 dB | ||
| Unwanted sideband | More than 50 dB | ||
Receiver
| Receiver system | 0.030 to 24.999 MHz | RF Direct Sampling | ||||
|---|---|---|---|---|---|---|
| 25.000 MHz and above | Down Conversion IF Sampling | |||||
| Intermediate frequencies | 25.000 MHz and above：38.85 MHz±0.5 MHz | |||||
| Sensitivity (HF: Preamp-1 ON, 50 MHz: Preamp-2 ON, 144/430/440 MHz: Preamp ON) | 0.500 to 1.799 MHz | 1.800 to 29.999 MHz | 50 MHz to 54 MHz | 144/430/440 MHz | ||
| SSB/CW（10 dB S/N) | - | 0.20 μV | 0.15 μV | 0.11 μV | ||
| AM（10dB S/N） | 13.0 μV | 2.0 μV | 1.0 μV | 1.0 μV | ||
| FM（12 dB SINAD） | 0.5 μV (28.000 to 29.700 MHz) | 0.25 μV | 0.18 μV | |||
| DV（1% BER）（PN9） | 1.0 μV (28.000 to 29.700 MHz) | 0.63 μV | 0.35 μV | |||
| Selectivity (Filter: SHARP) | SSB（BW=2.4 kHz） | More than 2.4 kHz/－6 dB Less than 3.4 kHz/－40 dB | ||||
| CW（BW=500 Hz） | More than 500 Hz/－6 dB Less than 700 Hz/－40 dB | |||||
| RTTY（BW=500 Hz） | More than 500 Hz/－6 dB Less than 800 Hz/－40 dB | |||||
| AM（BW=6 kHz） | More than 6.0 kHz/－6 dB Less than 10 kHz/－40 dB | |||||
| FM（BW=15 kHz） | More than 12.0 kHz/－6 dB Less than 22 kHz/－40 dB | |||||
| DV（12.5 kHz spacing） |
ICOM IC-705
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