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General |
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HAM bands | ? | 10m | ? |
Freq. stability | 10 ppm per °C change in ambient temperature | ? | Below 10 MHz: 50 Hz/MHz Above 10 MHz: 20 Hz/MHz Both after 30 minutes warm-up |
Tuning steps | ? | 1 / 10 / 100 kHz | ? |
Receiver |
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RX-range | 230-870 MHz in 2 ranges | 28-29.7 MHz (25.150-29.7 after modification) | 0.2-0.42 / 1.1-30 MHz in 5 bands |
Modulations | AM FM | AM FM SSB | AM CW |
Sensitivity |
AM: < 5 µV FM: < 4 µV |
0.5 µV (10 dB S/N) |
AM: 5 µV CM 1-2 µV |
Selectivity | ? | ? | 1.5 / 3.0 / 6.0 / 12.0 kHz selectable (-6 dB) |
Filters | ? | ? | 500 Hz switchable crystal filter |
Receiver system | ? | ? | Superheterodyne |
IF-freqs. | 36.5 MHz | ? | 450 kHz |
Image rejection | ? | >70 dB | ? |
Audio output | 150 mW | ? | 1 W |
Transmitter |
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TX-range | - | 28-29.7 MHz (25.150-29.7 after modification) | - |
Modulations | - | AM FM SSB | - |
RF-output | ? | AM: 7 W, FM/SSB: 25 W | ? |
Connections |
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Antenna | BNC | SO-239 | - |
Impedance | 75Ω | 50Ω | 70/80Ω |
Other | - | - | - |
Electrical |
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Power req. | Mains or 12V DC | 12-16V DC | Mains (100-125 or 200-250 V AC) or external PSU |
Current RX | ? | ? | 80 W |
TX | - | 3-5 A | - |
Physical |
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Manufactured | Between 1968 and 197x in Great Britain | Between 199x and 200x | Between 1959 and 196x in Great Britain |
Dimensions |
425 × 146 × 133 mm (16.73 × 5.75 × 5.24 in) |
154 × 52 × 248 mm (6.06 × 2.05 × 9.76 in) |
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Weight | 8.16 kg (18.0 lbs) desktop model | 1.50 kg (3.3 lbs) | ? |
Form factor | Base Station | Mobile | Base Station |
Other features |
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Memories | ? | ? | ? |
Usage | Amateur / Ham radio operators | Amateur / Ham radio operators | Military communication |
Features | ? | Repeater offset (Shift) | ? |
Accessories | ? | ? | ? |
MPN | EDDYSTONE-000990S | RADIOSHACK-REALISTIC-HTX-000010 | EDDYSTONE-000730/7 |