Profile

EMC Department carries out research and practical expertise in the field of electromagnetic compatibility (EMC) of systems and devices and of spectrum engineering and management based on their electromagnetic compatibility.

In particular, the activities of the Department are focused on:

• radio wave propagation measurement and analysis, network planning for radio, television, radio communication systems, Point-to-Point and Point-to-Multipoint systems; prediction of coverage in real interference conditions, network optimization for optimal coverage and minimal cost;
• research methods for electromagnetic compatibility and probability of interference between various radio systems;
• analysis of the availability of the radio spectrum resources, checking new available radio frequency resources for new radio services;
• developing new methods of radio spectrum and interference management, spectrum engineering,
• evaluation of efficiency of radio technologies and possibility of their implementation;
• technical support for radio analyses and license assistance for radio procedures given by UKE (Office of Electronic Communications);
• development of the computer system for planning of radio networks, their optimization and interference/compatibility analysis;
• international co-operation within CEPT, ITU, ECC, ERO;
• electromagnetic compatibility of electric and electronic equipment, including medical, military and industrial equipment, as well as the equipment used in mining;
• electromagnetic environment research, especially in the case of special industrial environments;
• electromagnetic fields and their influence on people safety, environment protection;
• new electromagnetic compatibility measurement techniques;
• electromagnetic compatibility standardization – working for IEC CISPR, and for Polish Committee for Standardization (PKN);
• intermodulation characteristics of radio equipment for different radio communication systems;
• development of specialized measuring equipment.

Competence

The Department is offering for interested clients the investigations in following fields:

• propagation analysis, radio coverage prediction, radio network optimization and analysis for various radio systems and frequency bands and different radio services;
• assistance and support for preparation of applications for the UKE and KRRiT radio license and permissions according the their procedures;
• radio spectrum availability analysis, finding new available frequencies for planned new radio, television and other services;
• analysis of compatibility and interferences conditions between various radio systems working in the same and adjacent bands;
• evaluation of efficiency of radio techniques and their novelty, evaluations and scientific opinions in the subject of new radio technologies;
• granting license for usage of the NIT propagation computer systems: calculation performed through the Internet on NIT server and digital maps;
• electromagnetic compatibility measurements including measurements of big equipment on production site (in-situ measurements) (AB666);
• electromagnetic environment research;
• electromagnetic fields measurement and analysis of their impact on people, from human safety and working environment protection points of view (AB666).

Achievements in 2009

The most important achievements of the Department are as follows:

• Optimization of the network plans for mobile television networks (DVB-H) in Poland for the network operator INFO-TV-FM.
• The DVB-H networks plans for mobile television were developed in 10 areas of the country taking into account the official requirements of UKE, operators’ expectation and costs optimizations.
• First DAB+ trial emissions in Poland started in June 2009, realized together with the Polish Radio Wroclaw and TP Emitel in first SFN (single frequency network) network.
• First time in Poland, the high quality digital radio in the DAB+ standard emission was put into operation using 2 transmitters: one from TP Emitel location and second from Wrocław NIT EMC Department tower. Measurements and verification tests of in field reception in real conditions were performed.
• Support to the Polish Television (TVP S.A.) in preparation of tender for the multiplex operator of the Polish Television DVB-T multiplex. Support for the Polish Television which was preparing tender documentation for DVB-T multiplex operator were given, with the aim of establishing first official digital emission DVB-T for Polish Television.
• Research analysis of the influence of interference from the CDMA 450 MHz system into analogue television reception. Analyses of the compatibility of the CDMA 450 system with analogue television were performed, showing levels of interference and their probability, the methods for minimization of interferences and practical solutions to minimize interferences for domestic installations and operators.
• Development of new analogue and digital circuits for the updated version of Automatic Click Analyzer ACA-4c sold to a laboratory in Japan.
• New measurements procedures have been developed for EMC measurements performed at EUT’s manufacturers site or the site of use (in-situ conditions).
• Developed Calculation methods for solving of intermodulation interferences for real intersystem EMC problems.
• Development and construction of unique circular characteristic measuring antenna for UKF-FM band.
• Participation in Research Project (ordered): Services and teleinformatics networks of next generation. Technical, application and market aspects.

Organization of the Department

The EMC Department consists of two sections:

• Spectrum Engineering and Management Section;
• Fields and Disturbance Measurements Section.

Within the Department, two test laboratories accredited by Polish Centre of Accreditation (PCA) are located:

• Laboratory of EMC Measuring Apparatus, AP 016,
• EMC Testing Laboratory, AB 666.

Contact

Head of Department: Janusz Sobolewski, PhD

Phone: (+48) 71 372 88 68

e-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Secretary: Bożena Kubicka, MSc

Phone: (+48) 71 372 88 68

Fax:     (+48) 71 372 88 78