Showing posts with label Signal Processing. Show all posts
Showing posts with label Signal Processing. Show all posts

Wednesday, January 16, 2008

Cops clean up the air over Sagar, 6 illegal radio stations busted

Suchetana Haldar
Posted online: Saturday , January 12, 2008 at 02:08:16
Updated: Saturday , January 12, 2008 at 02:23:15

Kolkata, January 11 The West Bengal Police today cracked down on six unauthorised private radio stations operating on Prasar Bharati frequencies. All have been operative in the various pockets under the Sagar police station in South 24 Parganas under names like Nagraj betar kendra, Ma Bishalakkhi and Ma Kali asthayi betar kendra. Acting on secret information from amateur radio operators, officers from the Sagar police station raided these centres.
Praveen Kumar, SP (South 24 Parganas) said: “We raided and dismantled six radio stations. Four persons were arrested. These stations have been running for long.”

A huge number of music CDs, DVDs, microphones and six radio transmitters and high frequency antennae were seized from these offices. The operators — Anukul Shaw, Shanatan Jana, Srikanta Pramanik and Gaur Chandra Maity — were in their early twenties. Jana runs a radio repair shop in his neighbourhood.
A year ago, amateur HAM radio operators had warned the monitoring station at Gopalpur, in South 24 Parganas, about unauthorised radio stations.
The monitoring station is under the jurisdiction of the Department of Communications, Government of India. The monitoring station had filed a police complaint last year, but it had been difficult to locate the base stations then. This year, the police succeeded in tracking them down.
In general, the makeshift stations operate by procuring indigenous transmitters. “Transmitter circuits can be readily made at homes. The radio operators then procure these transmitters and the entire station could come up for an investment of Rs 5000 only. Then they are free to air music, organise request shows and make revenues from advertisements,” said an amateur radio operator. The operators make brisk business round the year airing local ads.

These operators operate in the medium wave in the range of frequencies 565 KiloHz to 1600 kiloHz used for broadcasting services like All India Radio.

The unauthorised broadcasters often suppress the Prasar Bharati broadcasts as the transmitters are quite powerful locally, say within a radius of five to seven kilometres.



Saturday, January 05, 2008

Workshop On Software Defined Radio & Signal Processing at Kolkata

CQ CQ DE sandeep Lohia (vU3SXT) general call to all stations.Government College of Engineering & Ceramic Technology is organising atwo-day National Workshop on Signal Processing & its Application toSoftware Defined Radio on january 11-12,2008.
An important technology in the area of Wireless Communication is todesign and implement an Universal Communication Device in which all ofthe Signal Processing be done in Software and whose architecture &system parameters can be reconfigured by software updation instead ofhardware replacement to enable different modulation, coding and accessprotocols.Prof Asoke K Nandi (David jardine chair of Signal Processing) ofuniversity of Liverpool,UK and Prof S B Bilen Of Penn StateUniversity,USA will give special lectures.
In Association with:School of IT, West Bengal University of Technology,KolkataDefence Electronics Application Lab(DEAL),DRDO,DehradunAnd Network Partners:University College of Technology, KolkataHaldia Institute of Technology, HaldiaUnderTechnical Education Quality Improvement Program(TEQIP)For more information,Contact programme coordinator Bimal Pal On pal_bimal at yahoo.com or call on 9X231556479.

73's VU3SXT