Przemysłowy Instytut Telekomunikacji (PIT) S.A.- chronological review

Before WWII

1934

The Polish Ministry of Posts and Telegraphs issues an ordinance to establish the Państwowy Instytut Telekomunikacji (State Telecommunications Institute) with the logo existing till now. Prof. Janusz Groszkowski is appointed as the first Director. The mission of the Institute is to develop and to give opinion on “the issues of phone technology, radio technology and other systems and techniques of communications”.

Institute’s own scientific journal (Przegląd Radiotechniczny, Radiotechnical Review)) is established.

1935

Other journal (News and Proceedings of PIT) is published.

1938

The Institute’s total staff of 350 , most of them scientists and engineers.
First TV broadcasting, joint success of PIT and Polish Radio.In the period 1934-1939 a number of projects is advanced and completed: decimeter band tubes, 9-cm wavelength magnetrons, 40-cm band radio-link Gdynia-Jurata, telegraph equipment , components, quartz clock, TV transmitting-receiving models

World War II

1939	The World War II outbreaks. The activities of the Institute are suspended. Restitution of activities in the after-war political environment
1944,fall	The activity is re-started in completely devastated facilities.
1945	Prof. Janusz Groszkowski is back as the Director. By the end of 1945: 204 employees.
1947	Development works on TV are re-started
1948	Development work in radar technology is starting , both at the Gdańsk Technical University and the P.I.T.
1949	Laboratory model of 200 MHz pulse radar presented ( P.I.T. and Warsaw Technical University). PIT Gdańsk Division is established.
1951	Number of employees 500. Public presentation of a complete transmite-receive TV equipment is given. The name of PIT is converted to the present Przemysłowy Instytut Telekomunikacji. The TV technology moves to the new-established Communications Institute. A join team of P.I.T., Kasprzak Radio Works and Gdańsk Technical University is created and tasked to develop the surveillance radar and to absorb the Soviet licenses in radar technology.
1952	The first Polish NYSA A radar prototype demonstrated.
1953 to 1954	5 pieces of NYSA A radar handed-over to Polish Armed Forces
1955	The set of NYSA C (rangefinder) and NYSA B (heightfinder) implemented into long series production jointly with the WZR-Rawar. Deliveries to domestic customer and for export. The advanced L-band JAWOR surveillance radar designed (range of 150 km), which initiates the Jawor family being delivered to 1966.

Period 1956 to 1990 – facing new requirements

1956	Development of air traffic control radars starts. The base of microwave technology is being developed (measurements, precise manufacturing of components).
1958	The AVIA-type first domestic ATC radar is installed at Warsaw airport
1963	Digital Technology Lab is created, groups of engineers of other institutes join. The converters analog-to-digital and the modeling algorithms developed and conceptual works on the computer-supported 3D radar begin.
from 1966 on	Along with Rawar’s BOGOTA heightfinders, the line of JAWORs (Jawor M, Jawor M2) creates the core Polish air defence capability in the years sixties.
from 1967 on	New ATC AVIA B radars are installed in numerous airports, in Poland and East Germany. Marine electronics intensively developed by Gdańsk Division (antenna and waveguide technology) P.I.T. gives support to Polish-made microwave materials and components.
Late sixties	Fully-coherent N-type radars developed. The needs of all three Armed Forces services are defined in regard of the automated command systems.
1972	Functional model of 3D radar (HAWANA) is presented. Along with monopulse elevation estimation also the digital radar signal processing is extensively implemented. The results contribute to the concept of automated processing of radar information.
Early seventies	Project DUNAJEC for Air Defence starts with close cooperation with Armed Forces’ operational and scientific units. Development of software, modular structures and new digital technologies accelerates. The subject of command and control systems gets its shape.
1978 to 1990	PIT-developed line of AVIA C, AVIA D and AVIA W radars (produced by WZR RAWAR) successfully delivered to home and foreign customers (East Germany, Czechoslovakia, Cuba). Many of the radars are still operating.
1990 on	Computer-supported ATC system GAMMA 1 installed at the Berlin Schoenefeld Airport. ATC AVIA C radars installed in Czechoslovakia, Poland, East Germany, Cuba AVIA D delivered to Cuba, domestic customer, East Germany. Operating S-band three dimensional N-11 radar is developed and delivered to the customer. Modern solutions are implemented: multibeam antenna (reflector), instrumented detection range of 200 km, automatic tracking, fully coherent pulse compression transmit-receive system, wide band frequency diversity. Radar being equipped with BITE and characterized by high mobility and short deployment time. This up-to-day radar closes the era of reflector antennas at P.I.T. The new generation 3D radars with planar array antenna to be put in service in 1995. The progress is made in solid state hybrid microwave integrated circuits, low noise amplifiers , mixers, limiters, also in filters made in various technologies: waveguide, symmetrical air lines and microstripes. The measurement capabilities increase. The second phase of the development of Dunajec for Air Defence system to include the extensive localization of the objects, new software was developed and a number of objects are implemented in manufacturing and delivered to customer. The works on automated command and control systems for air defense (then in the Land Forces structure, now in Air Forces) are started, essential phase finished by the 1991. The RUDNIA Electronic warfare control subsystem developed to gather information from reconaissance equipment to process it and to control the onboard jammers of the assault fighters
1991

Wrocław Division is established to be a reliable source of microwave components and assemblies.

At the dawn of the political and economic transformation in Poland in early nineties, PIT S.A. presents itself as a well structured, independent R&D unit, offering the up-to-day products to the domestic and foreign customers.