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Compare specifications between amateur radios. Simply select up to 3 radios and compare them side-by-side, including images and descriptions.
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General |
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| HAM bands | ? | ? | None |
| Freq. stability | ? | Within 1100 Hz (or 120 Hz using optional oven standard) over the temperature range of 0-50 °C. | ? |
| Tuning steps | ? | Selectable steps of 10 Hz, 100 Hz, 1 kHz or 1 MHz; 200 steps per revolution (20 for 1 MHz steps) of tuning knob. | Not applicable |
Receiver |
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| RX-range | 0.25-30 MHz | 0.2-30 MHz | HF |
| Modulations | AM CW SSB | AM CW USB LSB FSK | All mode |
| Sensitivity | ? | (at 1.6 to 30 MHz, not more than antenna input) 0.5 µV for 10 dB S+N/N for SSB and CW using 2.1 kHz filter and 3.5 µV in AM (30% mod 1 kHz) using 6-kHz filter 0.2 to 1.6 MHz, not more than 1.5 µV SSB/CW and 10 µV AM for above conditions. | 50 µV for 1" vertical deflection at full gain |
| Selectivity | ? |
Filter -3dB Min -60 dB Max 6.0 6.0 kHz 30.0 kHz 2.1 2.1 kHz 4.4 kHz 360 360 Hz 1250.0 Hz optional AC-3811 140 Hz 600 Hz AC-3812 1.7 kHz 3.4 kHz AC-3814 3.0 kHz 9.0 kHz |
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| Filters | ? | ? | ? |
| Receiver system | ? | Double conversion superheterodyne (?) | ? |
| IF-freqs. | ? |
1st: ? 2nd: 455 kHz |
350 kHz |
| Image rejection | ? | ≥ 60 dB | ? |
| Audio output | ? | Internal speaker | ? |
Transmitter |
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| TX-range | - | - | ? |
| Modulations | - | - | All mode |
| RF-output | ? | ? | ? |
Connections |
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| Antenna | - | BNC | RCA (Tulip) |
| Impedance | 50 Ω | 50Ω | 50Ω |
| Other | - | - | - |
Electrical |
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| Power req. | Mains | Mains or 13.8 V DC | Mains |
| Current RX | ? | ? | 40 W max |
| TX | - | - | ? |
Physical |
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| Manufactured | Between 1971 and 1973 in USA | Between 19xx and 19xx in USA | Between 196x and 196x in USA |
| Dimensions | ? |
394 × 191 × 457 mm (15.51 × 7.52 × 17.99 in) |
133 × 187 × 280 mm (5.24 × 7.36 × 11.02 in) |
| Weight | ? | 12.70 kg (28.0 lbs) | 3.85 kg (8.5 lbs) |
| Form factor | Base Station | Base Station | Base Station |
Other features |
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| Memories | ? | None | None |
| Usage | Amateur / Ham radio operators | Amateur / Ham radio operators | Amateur / Ham radio operators |
| Features | ? |
Passband tuning Built-in AC/DC power supply Built-in speaker Digital frequency readout |
? |
| Accessories | ? | ? | ? |
| MPN | COLLINS-000651S-1 | COLLINS-000451S-1 | HEATHKIT-HO-000013 |
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