Most significant references of the VHF/UHF program

1962. - Commencement of VHF transceivers (type 60/x) production, under licence contract with Italian company "Prodel". More than 1.000 units quantity produced.

1963. - Commencement of originally developed transceivers (type 63/x) production (I generation of our own development). The product included electronic tubes and Ge-transistors. Over 3.500 units produced in 3-year production period.

1966. - Commencement of II generation transceivers (type 66/x) production. Made completely in transistors' technology, and produced in over 8.000 units quantity in 5-year production period.

1971. - Commencement of III generation transceivers production (series MRS300/x, FRS300/x and RRS300/x). Devices with very long production life (more than 10 years), outstandingly successful on both domestic and international market - more than 40.000 units produced.

1980. - Commencement of IV generation transceivers production (series MRS400/x, FRS400/x and RRS400/x). More than 18.000 units delivered to the domestic and international customers in five-year period. Products' main characteristic: higher level of integration and implementation of the Sell Call features. The wave soldering technology applied in the production process.

1985. - Commencement of the production of the first transceivers with digital PLL (series MRS500Ke/x and FRS500Ke/x). During its more than 10-year-long production period, a great number of different modifications introduced in the process, aimed at the product adaptation to customers' demands and overall characteristics enhancement, which resulted in the development of a wide range of V generation VHF/UHF transceivers. The basic newly-added features: possibility of encrypting voice transmission over the narrow FM channel and remote controlling of the transceiver (through the detachable control panel or dedicated communication consoles).

1985. - Establishment of the experimental Automated System for Urban Public Transport Control (ASU-Reis) in Moscow, USSR, in cooperation with Russian partners. Fifty vehicles of the Moscow's urban public transport company equipped with radio navigational equipment.

1986. - Additional 500 vehicles equipped for operation with ASU-Reis system in Moscow.

1988. - Commencement of the new generation of portable VHF/UHF transceivers (series PRS600) production, under licence contract with Italian partner company. Product's main characteristics include microprocessor control, digital PLL, Sell Call and sub-audio tones features, Surface Mount Technology. More than 2.500 units produced.

1989. - In cooperation with "Mihajlo Pupin" Institute, experimental Automated System for Urban public transport control (SAKS) started in Belgrade. Seventeen vehicles equipped with radio navigational equipment.

1989. - Development, production and installation of multi-functional radio network system MOSOR for the corporate service of a few road companies in Croatia and Bosnia & Herzegovina.

1999. - Delivery initiation of highly modernized equipment for the Automated System for Urban public transport control (ASU-2000). The contract with Russian customer comprised the equipment for Control Centre and the mobile equipment for 300 vehicles.

• A variety of VHF/UHF antennas and antenna systems, power supplies and accessories for the transceivers developed and produced.

• A great number of wireless control systems, ranging from relatively simple to very sophisticated ones, were concepted, integrated and supplied.

• Completion of numerous VHF/UHF radio network planning projects.

Most significant references of the EMI program

1960/61. - Commencement of originally developed Electronic Measurement Instruments production, realised in a wide range including over 25 different types of instruments. By 1976, more than 2.700 units produced.

1960-1967. - Development and production of Transistor testers, Universal electronic voltmeters, AF milivoltmeters, Pulse oscilloscopes (electronic tubes' technology), Service oscilloscopes and Digital counters (transistors' technology).

1968-1973. - Development and production of measurement instruments with high level of integration - AF oscillators, Generators of the fixed AF frequencies, Distortion analysers, HF power meters and reflectometers, HF frequency wobblers, Signal generators, Pulse generators, Telegraph signal generators, Frequency counters, Digital multimeters, Digital counters, Laboratory and Portable oscilloscopes, Stabilized power supplies (single and double) and Fast battery chargers.

1974-1976. - Development and production of dedicated Measurement sets for the Yugoslav Army. The set comprised different measurement instruments, such as oscilloscope, digital multimeter, electronic voltmeter, AF generator and distortion analyser.