Specifications
- Frequency range
- 44–50 MHz, 6 fixed frequencies, 25 kHz spacing
- Modes
- FM (F3E)
- Output power
- 1 W
- Power supply
- 12 V / 2 Ah battery
- Weight
- 2.75 kg
Sources: [3]
Description
The R3520 is a portable VHF radio station of 1.5 W, made by IEMI in Bucharest and designed at the ICE research institute in Bucharest [1].
ICE’s VHF professional radio communications laboratory designed radio stations mainly for the army, with civilian versions for oil fields, forestry, building sites and agriculture; they were made in ICE’s microproduction workshop, at IEI (and after 1989 at its successor, ELPROF SA) and at IEMI [1]. Work on new frequency-hopping military radios was abandoned after 1989 for lack of funds [1].
It was a portable set for reconnaissance units, made at IEMI until 1991 [2].
Its prospectus describes a portable FM simplex transceiver, used stationary or on the move, supplied in a transport case with antennas, throat microphones, batteries and spares, also in an industrial version with a wire antenna [3]. It covered 44–50 MHz on six fixed frequencies, with a range of 7 km on the whip, 20 km on a wire antenna and 3 km on the emergency antenna; the prospectus gives 1 W, while the institute’s table gives 1.5 W [3].
Section V.3 says IEMI made 96 R3520 stations in 1980–1984 and then 476 of the R3520 M in 1985 [5][4].
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.4.5 „Laborator echipamente radiocomunicații profesionale în gama undelor ultrascurte”, pp. 130–132
- [2]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, section V.1.4.3 „Întreprinderea de Aparate Electronice de Măsură și Industriale – IEMI”, pp. 438–441
- [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
- [4]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, annex V.3.1 „Producția specială la IEMI”, pp. 505–510
- [5]N. Millea (coord.) et al. – „Electronica românească. O istorie trăită”, vol. II „Electronica profesională”, AGIR, section V.3 „Câteva date suplimentare referitoare la electronica pentru armată” (N. Millea), pp. 480–493