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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 | 160m 80m 40m 20m 15m 10m | ? | 2m |
| Freq. stability | ? | ? | Stated as +/- 10ppm @ 25°C |
| Tuning steps | ? | ? | 5 or 12.5 kHz depending on version. Can be reprogrammed by changing internal diode matrix in any multiple of 5 kHz from 5-40 kHz |
Receiver |
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| RX-range | - | 540-1600 kHz / 3-10 MHz |
143.000-148.995 MHz (A) 144.000-148.9875 MHz (E) |
| Modulations | - | AM | FM |
| Sensitivity | ? | 20 mV (10 dB S/N) |
S/N ≤ 35 dB: 1uv S/N ≤ 20 dB: 0.35 µV SINAD ≤ 10%: 0.5 µV |
| Selectivity | ? | 8 kHz (-6 dB) |
± 6 kHz at -6 dB ± 16 kHz at -60 dB |
| Filters | ? | ? | ? |
| Receiver system | ? | Single conversion | Double superheterodyne |
| IF-freqs. | ? | 455 kHz |
1st: 10.7 MHz 2nd: 455 kHz |
| Image rejection | ? | ? | ≥ 70 dB |
| Audio output | ? | ? | ≥ 1.5 W @ 10% THD into 8 Ohms |
Transmitter |
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| TX-range | 10-160 m | - |
143.000-148.995 MHz (A) 144.000-148.9875 MHz (E) |
| Modulations | AM CW | - | FM |
| RF-output | AM: Max 125 W, CW: Max 140 W | ? | High: 25 W, Low: 3 W |
Connections |
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| Antenna | - | Clamps / screws | SO-239 |
| Impedance | 50/600Ω | 50 Ω | 50Ω |
| Other | - | - |
5 pin DIN connector for some sort of a control interface unit. 3.5mm phono connector for external speaker (8Ω) |
Electrical |
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| Power req. | Mains | Mains (105-125 V AC) | 13.8V DC |
| Current RX | - | 40 W | 600 mA max |
| TX | ? | - | 6.5 A max |
Physical |
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| Manufactured | Between 1955 and 1957 in USA | Between 1961 and 196x in USA | Between 1980 and 198x |
| Dimensions |
526 × 350 × 406 mm (20.71 × 13.78 × 15.98 in) |
292 × 165 × 190 mm (11.50 × 6.50 × 7.48 in) |
180 × 60 × 195 mm (7.09 × 2.36 × 7.68 in) |
| Weight | 45.36 kg (100.1 lbs) | 1.80 kg (4.0 lbs) | 2.25 kg (5.0 lbs) body only |
| Form factor | Base Station | Base Station | Mobile |
Other features |
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| Memories | ? | ? | 10 channels in 1 bank(s) |
| Usage | Amateur / Ham radio operators | Amateur / Ham radio operators | Amateur / Ham radio operators |
| Features | ? | ? | ? |
| Accessories | ? | ? | ? |
| MPN | HEATHKIT-DX-000100 | HEATHKIT-EK-000002B | KDK-FM-002025A/E-MK-II |
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