Azerbaijan, Baku, Dec.10 / Trend H.Valiyev /
A working group studying the use of simultaneous audio broadcasting radio frequency networks in the medium and long wave (MW / LW) at the Regional Commonwealth of Communications (RCC) will consider applying these frequencies in the country, Azerbaijani State Radio Frequencies Administration Chief Engineer Ilham Efendiyev told Trend today.
The issue will be addressed during the next working group meeting in Minsk on Dec. 14-17. The Communications and IT Ministry's State Radio Frequencies Administration will represent Azerbaijan at the meeting.
The issue concerns the 549 kHz, 873 kHz and 171 kHz frequencies that should be coordinated, so that the transmitters used by one country do not to create interference with other broadcasts.
The meeting is expected to determine the approaches and criteria to eliminate interference, the feasibility of technical proposals and their alignment.
"The most appropriate measure of coordination, as previously thought, should have been the significant reduction in the capacity of the power transmission devices," he said. "Many RCC administrations did not agree with this due to the fact that a substantial reduction in power transmitter capacity would not allow the needs of broadcasters to be ensured throughout these countries. Therefore, the experts are considering the level of the information exchange transmitter by changing the antenna configuration and coordination. Although this option is considered acceptable and easy, it also requires a careful approach and assessment. New criteria are defined in this regard."
The transmitter power level for the 549 MHz frequency range has not yet been used, but it was checked with the Azerbaijani State Radio Frequencies Administration. It reached 60 kilowatts. Azerbaijan may reduce the power by 50 kilowatts, Efendiyev said earlier.
The initial coordination proposal, Efendiyev said, should receive confirmation at the next RCC Commission for Satellite Communication, TV and Sound Broadcasting meeting in Kazakhstan in April 2011.