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 | 11m (CB) | 11m (CB) | 2m |
| Freq. stability | ? | ? | Drift less than 0.003 of 1% per °C and less than 0.003 of 1% for a 5% mains voltage change |
| Tuning steps | Channelized | Channelized | ? |
Receiver |
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| RX-range | 26.965-27.405 MHz | 26.965-27.255 MHz | 19-165 MHz in 6 bands |
| Modulations | - | AM | AM FM W-FM CW |
| Sensitivity | ? | 0.5 µV | Better than 5 µV (S/N 15 dB) |
| Selectivity | ? |
6 kHz @ -6 dB 30 kHz @ -60 dB |
AM/CW: 50 kHz @ -40 dB N-FM: 80 kHz @ -40 dB W-FM: 175 kHz @ -40 dB |
| Filters | ? | ? | ? |
| Receiver system | ? | Dual conversion superheterodyne | Single conversion superheterodyne |
| IF-freqs. | ? | ? | 5.2 MHz |
| Image rejection | ? | ? | ? |
| Audio output | ? | 3 W | 2.5 W |
Transmitter |
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| TX-range | 26.965-27.405 MHz | 26.965-27.255 MHz | - |
| Modulations | - | AM | - |
| RF-output | 4 W | 5 W | ? |
Connections |
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| Antenna | - | - | - |
| Impedance | 50Ω | 50Ω | 72Ω |
| Other | - | - | - |
Electrical |
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| Power req. | ? | 12 V DC | Mains (110 / 200-240 V AC) |
| Current RX | ? | ? | 90 VA |
| TX | ? | ? | - |
Physical |
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| Manufactured | Between 19xx and 19xx | Between 195x and 196x in USA | Between 1963 and 196x in Great Britain |
| Dimensions | ? |
157 × 55 × 222 mm (6.18 × 2.17 × 8.74 in) |
425 × 222 × 346 mm (16.73 × 8.74 × 13.62 in) |
| Weight | ? | 2.30 kg (5.1 lbs) | 23.60 kg (52.1 lbs) |
| Form factor | Handheld | Mobile | Base Station |
Other features |
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| Memories | 40 channels in 1 bank(s) | 12 channels in 1 bank(s) | ? |
| Usage | Citizen Band (27Mc) | Citizen Band (27Mc) | Amateur / Ham radio operators |
| Features | AM | PA output use in vehicle | ? |
| Accessories | ? | ? | ? |
| MPN | COLT-000210 | E.F.-JOHNSON-MESSENGER-III | EDDYSTONE-000770R-MK.-II |