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| Year: 1978–1981 | Type: Communication Receiver (also Amateur) | ||||
| Semiconductors (the count is only for transistors) | Semiconductors present. |
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| Principle | Superhet, double/triple conversion |
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| Wave bands | Broadcast, Long Wave and more than two Short Wave bands. |
| Details | |
| Power type and voltage | Alternating Current supply (AC) / 110-125 / 200-250 Volt |
| Loudspeaker | Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) |
| Power out | 1 W |
| from Radiomuseum.org | Model: RA-1772 - Racal Engineering Racal |
| Material | Metal case |
| Shape | Rack |
| Dimensions (WHD) | 483 x 178 x 410 mm / 19 x 7 x 16.1 inch |
| Notes | Commercial receiver, coverage 15 - 30000 kHz, AM, USB/LSB, CW; digital LED readout, minimal tuning steps 10 Hz, standard bandwidths 8 / 3 / 0.3 kHz, several configurations; optional 9400 standard or 9420 high stability frequency standard with crystal oven, optional ISB, FSK and AFC circuits. |
| Net weight (2.2 lb = 1 kg) | 21 kg / 46 lb 4.1 oz (46.256 lb) |
| Source of data | Shortwave Receivers - Past & Present; Fred Osterman, N8EKU / |
Model page created by Martin Bösch. See "Data change" for further contributors.
All listed radios etc. from Racal Engineering (Racal Instruments) Ltd., Bracknell
Here you find 89 models, 29 with images and 6 with schematics.
Collection of Martin Bösch (CH)
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Hits: 3015 Replies: 0
racal: RA-1772 (RA1772); variants
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Martin Bösch
17.Dec.06 |
1
the complete designation of RA 1771 and 1772 receivers alows to identify the mounted optional components: format as follows: 1st suffix / 2nd suffix / 0 / fourth suffix / fifth suffix / sixth suffix 1st suffix: filters fitted (6 available slots) A: symmetrical 0,3 / 3 / 8 kHz, sideband filters USB 3 / LSB 3 kHz B: symmetrical 0,3 / 1 / 8 kHz, sideband filters USB 3 / LSB 3 kHz C: symmetrical 0,3 / 1 / 3 / 8 kHz, sideband filters USB 3 kHz D: symmetrical 0,3 / 1 / 3 / 8 kHz, sideband filters USB 2,7 kHz E: symmetrical 0,3 / 3 / 8 kHz, sideband filters USB 6 / LSB 6 kHz F: symmetrical 0,3 / 1 / 8 kHz, sideband filters USB 6 / LSB 6 kHz G: symmetrical 1 / 3 / 13 kHz, sideband filters USB 6 / LSB 6 kHz H: symmetrical 1 / 3 / 8 kHz, sideband filters USB 3 / LSB 3 kHz 2nd suffix: frequency standard fitted 0: no internal frequency standard, external frequency standard required S2: type 9400 frequency standard S3: type 9420 high stability frequency standard 3rd suffix: always 0 4th suffix: ISB filter identification 0: not required / not available B3: 3 kHz Filter (2,7 kHz minimum bandwidth) B6: 6 kHz Filter (5,7 kHz minimum bandwidth) 5th suffix: frequency shift keying 0: FSK facility not fitted F: FSK facility fitted 6 th suffix: automatic frequency control 0: AFC facility not fitted C: AFC facility fitted Similar receivers: RA-1773 (RA1773): RA-1771 fitted with MA-1070A connector panel providing a fan and front connectors of rear sockets, all in Creeth Field Transit Case. Similar receivers: RA-1774 (RA1774): RA-1772 fitted with MA-1070A connector panel providing a fan and front connectors of rear sockets, all in Creeth Field Transit Case. |