16 Jun DRM+ successfully tested in New Delhi
The single test frequency of 100.1MHz carried three programme channels – Gold DRM (FM), Rainbow DRM (FM) and AIR news in Journaline and its reception was measured by a test vehicle going in four directions from central New Delhi where the transmitter was installed. The Nautel VS-1 transmitter with 300W output power (500W radiated power) along with the RFmondial DRM+ Modulator and the Fraunhofer DRM Content Server were used.
Two test modes were measured – robust 4-QAM and high capacity 16-QAM and the DRM+ coverage was found to be comparable with that of analogue FM station operating at approximately 5 times the power of the DRM+ signal. A full report will be published jointly by AIR and DRM.
This week long DRM+ Showcase (23rd – 27th May 2011) in New Delhi also included an extensive workshop on DRM technology covering crucial issues of planning, transition, simulcast, content and receivers. A large number of participants from all across the country attended the sessions that also had interactive discussions with DRM experts.
DRM members Nautel (Canada), Fraunhofer IIS, RFmondial, University of Hanover (Germany), KETI (South Korea), Analog Devices (USA) and BBC (UK) took part in the test either with equipment or experts or both. The DRM Consortium will provide more information along with the test results shortly. For details log on to tmp.drm.org or write to email@example.com.
Ruxandra Obreja, Chairperson DRM Consortium said: “This test was a successful culmination of a close partnership of the DRM Consortium and All India Radio and the whole hearted support of the DRM members who took part in this event. AIR has already adopted DRM30 for its SW/MW network and DRM+ will play a complementary role operating in VHF band II.”
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