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General
IC-R20 |
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| Frequency coverage (Differs according to version) |
0.150–1304.999, 1305–3304.999MHz*1 (VFO A): 0.150–469.999MHz (VFO B): 118–174.999, 330–1304.999MHz |
| Mode | FM, WFM, AM, USB*, LSB*, CW* * 0.150–469.999MHz only. |
| Frequency stability | ±6ppm (–10°C to +60°C; +14°F to +140°F) |
| Current drain | Rated audio output*2 : 150mA typ. (at 3.7V DC) |
| Battery pack or cells | BP-206, AA(R6)× 3 alkaline cells |
| External power supply requirement | 6.0V DC (with BC-149A/D or CP-18A/E) |
| Antenna connector | BNC (50Ω) |
| Number of memory channels | 1250 (including 200 auto memory write and 50 scan edges) |
| Dimensions (W×H×D; Projections are not included) |
60×142×34.8 mm; 23/8×519/32×13/8 in |
| Weight (approx.) | 320g; 11.3oz (With antenna and BP-206) |
Receiver
IC-R20 |
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|---|---|
| Sensitivity (typical, except spurious points) |
FM (at 12dB SINAD): 1.620–4.999MHz 0.56μV 5.000–221.999MHz 0.4μV 330.000–832.999MHz 0.56μV 833.000–1304.999MHz 0.71μV 1330.000–2304.999MHz 5.6μV 2330.000–2999.999MHz 18μV WFM (at 12dB SINAD): 76.000–108.000MHz 1.8μV 175.000–221.999MHz 1.8μV 470.000–769.999MHz 2.5μV AM (at 10dB S/N): 0.495–4.999MHz 2.2μV 5.000–29.999MHz 1.4μV 118.000–135.999MHz 1.4μV SSB, CW (at 10dB S/N): 0.495–4.999MHz 0.4μV 5.000–29.999MHz 0.25μV 50.000–53.999MHz 0.25μV 118.000–146.999MHz 0.25μV 330.000–469.999MHz 0.32μV |
| Selectivity | AM, FM: 12kHz/–6dB 30kHz/–60dB WFM: 150kHz/–6dB SSB, CW: 1.8kHz/–6dB |
| AF power (at 10% distortion) | 100mW typical with an 8Ω load |
| External speaker connector | 2-conductor 3.5 (d) mm (1/8'' )/8Ω |
*2 Single receive mode, IC recorder OFF.
Applicable U.S. Military Specifications
Icom makes rugged products that have been tested to and passed the following MIL-STD requirements and strict environmental standards.
| Standard | MIL-810 F Method, Proc. |
|---|---|
| Low Pressure | 500.4 I,II |
| High Temperature | 501.4 I,II |
| Low Temperature | 502.4 I,II |
| Temperature Shock | 503.4 I |
| Solar Radiation | 505.4 I |
| Humidity Induced | 507.4 |
| Salt Fog | 509.4 |
| Dust Blowing | 510.4 I |
| Vibration | 514.5 I |
| Shock | 516.5 I,IV |
All stated specifications are subject to change without notice or obligation.




