Specifications
- Frequency range
- 1.5–30 MHz, 100 Hz steps
- Modes
- SSB, telegraphy
- Selectivity
- CW: 500 Hz (−6 dB), 3 kHz (−60 dB); SSB: 2.4 kHz (−6 dB), 10 kHz (−60 dB)
- Power supply
- 12 V Ni-Cd battery or mains; 250 mA
- Dimensions
- 240 × 90 × 340 mm
- Weight
- 11 kg
Description
The R3111 is a military portable short-wave receiver, made by IEMI in Bucharest and designed at the ICE research institute in Bucharest [1]. It replaced the R3110 and used the electrical and mechanical structures of the R3931 [2]. Two prototypes were approved in 1984, and IEMI made it until 1991 [2].
ICE’s short-wave professional radio communications laboratory took over in 1966 the staff and work of Electronica in this field; it designed radio stations, first-class receivers and accessories such as antennas and relays, mainly for the army, with civilian versions for the oil and forestry industries, building sites and agriculture; they were made at IEMI and IEI [1].
Its prospectus describes a sealed modular receiver, also used as the exciter of the R3931, with a detachable control panel, a 12 V / 7 Ah Ni-Cd battery (at least 28 hours) and a mains supply; it had 28,500 channels and also received AM [3].
Gallery
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Schematics
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Documents
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References
- [1]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, section II.4.4 „Laborator echipamente radiocomunicații profesionale în gama de unde scurte”, pp. 127–130
- [2]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, section II.8.2 „Laboratorul 4 ICE” (R. Enescu), pp. 188–196
- [3]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex V.2.2 „Produse speciale fabricate la IEMI”, pp. 710–722