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General |
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HAM bands | ? | ? | 80m 60m 40m 20m 15m 10m |
Freq. stability | ? | ? | < 100 cps for 10% line fluctuation after warm up |
Tuning steps | ? | ? | Continuous |
Receiver |
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RX-range | 0.05-30 MHz in 9 bands | 56-60 MHz (10/20/40/80/160 m option) | 10-80 m |
Modulations | AM CW | AM | AM FM CW SSB |
Sensitivity | ? | ? | 0.5 µV (10 dB S/N) |
Selectivity | ? | ? |
SSB: 2.1 kHz @ -6 dB, 2.5 kHz @ -60 kHz AM: 4 kHz @ -6 dB, 7.5 kHz @ -25 kHz AM: 2.1 kHz @ -6 dB, 2.5 kHz @ -25 kHz CW: 5 kHz @ -6 dB, 2.5 kHz @ -60 kHz |
Filters | ? | ? | ? |
Receiver system | ? | ? | Single conversion superheterodyne |
IF-freqs. | ? | ? | 455 kHz |
Image rejection | ? | ? | > 50 dB |
Audio output | ? | ? | 2 W |
Transmitter |
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TX-range | - | - | - |
Modulations | - | - | - |
RF-output | ? | ? | - |
Connections |
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Antenna | - | - | SO-239 |
Impedance | 50/300 Ω | ? | 50/70Ω |
Other | - | - | - |
Electrical |
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Power req. | External PSU | ? | Mains |
Current RX | ? | ? | 50 W |
TX | - | - | - |
Physical |
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Manufactured | Between 1945 and 1946 in USA | Between 19xx and 19xx in USA | Between 1965 and 196x |
Dimensions |
438 × 228 × 305 mm (17.24 × 8.98 × 12.01 in) |
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380 × 180 × 330 mm (14.96 × 7.09 × 12.99 in) |
Weight | 25.00 kg (55.2 lbs) including 9 coil drawers | ? | 12.00 kg (26.5 lbs) |
Form factor | Base Station | Base Station | Base Station |
Other features |
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Memories | ? | ? | None |
Usage | Amateur / Ham radio operators | Amateur / Ham radio operators | Amateur / Ham radio operators |
Features | ? | ? | - |
Accessories | ? | ? | - |
MPN | NATIONAL-COMPANY-HRO-000005TA1 | NATIONAL-COMPANY-SRR | SOMMERKAMP-FR-000100B |