GENERAL |
Type: | HF receiver |
Frequency range: |
0.98-30 MHz
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Tuning steps: | Analog / continuous |
Frequency stability: | Less than 150 Hz after 3 hours |
Mode: | AM / CW |
Channels / memory management: |
None
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Power supply: | Mains: 100-125 / 200-250 VAC |
Current drain / power consumption: | 85 W |
Antenna impedance / connector: | 75 ohm / ? |
Dimensions (W*H*D): | Rack version: 483*267*510 mm (19*10.5*20.12") |
Weight: | Rack version: 30.5 Kg (67 lb) |
Other features: | IF output. 100 KHz calibrator. 10-40 dB attenuator. |
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RECEIVER SECTION |
Receiver system: |
Triple conversion superheterodyne
1st IF: 40-65 MHz
2nd IF: 2-3 MHz
3rd IF: 100 KHz
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Sensitivity: | Better than 1 uV (10 dB S/N) |
Selectivity: |
Selectable (-6 dB)
8, 3, and 1.2 KHz
750, 300 and 100 Hz
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Image rejection: | >60 dB |
AF output power / speaker: | 50 mW at ?% distortion / ? ohm |
External speaker connector: | |
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MISCELLANEOUS |
Manufactured: | Mark I: England, 1957-1958 (Discontinued) Mark II: England, 1958-1971 (Discontinued) |
Additional info: | Wadley loop system |
Related documents: | |
Modifications and fixes: | |
Reviews: |
QST: March 1958, page 15
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Options / Accessories: |
MA121A/B
RA37
RA63
RA66
RA98
RA137
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SSB/ISB adapter
LF converter
SSB adapter
Panoramic display
ISB adapter
LF converter (Later version)
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