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General |
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HAM bands | 160m 80m 60m 40m 30m (WARC) 20m 17m (WARC) 15m 12m (WARC) 11m (CB) 10m | 80m 40m 20m 15m 10m | |
Freq. stability | Within 300 Hz if the nearest 100 kHz calibration point is used to adjust the fiducial | ? | |
Tuning steps | Continuous | ? | |
Receiver |
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RX-range | 0.54-30.5 MHz in 30 bands | - | |
Modulations | AM CW | - | |
Sensitivity |
Band 1: Less than 15 µV for 10 dB S/N Bands 2 to 30: Less than 5 µV for 10 dB S/N |
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Selectivity | 1 / 3 / 6 / 10 kHz | ? | |
Filters | ? | ? | |
Receiver system | Triple Conversion Superheterodyne | XTAL | |
IF-freqs. | ? | ? | |
Image rejection | ? | ? | |
Audio output | External 270G-3 Speaker, 2.5 W | ? | |
Transmitter |
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TX-range | - | 80-10 m | |
Modulations | - | AM CW | |
RF-output | ? | 20 W | |
Connections |
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Antenna | SO-239 | - | |
Impedance | 50Ω | 50/600 Ω | |
Other | - | - | |
Electrical |
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Power req. | Mains (110-120 / 220-240 V AC) | Mains | |
Current RX | 85 W | - | |
TX | - | ? | |
Physical |
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Manufactured | Between 1952 and 1956 in USA | Between 19xx and 19xx | |
Dimensions |
536 × 317 × 333 mm (21.10 × 12.48 × 13.11 in) |
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Weight | 19.50 kg (43.0 lbs) | ? | |
Form factor | Base Station | Base Station | |
Other features |
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Memories | None | ? | |
Usage | Amateur / Ham radio operators | Amateur / Ham radio operators | |
Features | ? | ? | |
Accessories | ? | ? | |
MPN | COLLINS-000051J-3 | HAMMARLUND-FOUR-000020 |