(1) Every broadcaster shall maintain technical standards of the signals as per the standards laid down by Digital Video Broadcasting for DVB-S or DVB-S2 standards, as the case may be, and shall also ensure that the quality of signals supplied at the headend of multi-system operator fulfill the following requirements :- Sl. Parameters Value 1 Signal to noise ratio (SNR) As specified by DVB-S (ETSI EN 300421) or DVB-S2 (ETSI EN 302307), as applicable 2 Operating Margin (Noise Margin) Higher than 4 dB.
Explanation:- For the purpose of this sub-regulation, -
(i)“Noise Margin” means margin between the signal to noise ratio (SNR) leading to quasi error free (QEF) operation after the Reed Solomon decoder (BER <2 x 10-4 before Reed Solomon decoding) and the SNR of the system.
(ii) “Higher than 4 dB” is as per IS 13420 (Part I):2002, IEC 60728-1(2001), Para 5.11.1.2 page
54.
(2) Every multi-system operator or its linked local cable operator shall, in their networks, ensure compliance with BIS Standards specified by Bureau of Indian Standards from time to time relating to system performance in the cable distribution networks and shall further ensure the following parameters at the subscriber’s premises:
20 Sl. Parameters Value 1 Maximum and Minimum Carrier levels 47 dB µV min. for 64 QAM 67 dB µV max. for 64 QAM 54 dB µV min. for 256 QAM 74 dB µV max. for 256 QAM 2 Signal to noise ratio 26 dB min for 64 QAM fall-off-the-cliff 32 dB min for 256 QAM fall-off- the-cliff.
3 Operating Margin (Noise Margin) Higher than 4 dB 4 MER 30 dB (64 QAM) min.
34 dB (256 QAM) min.
Explanation: For the purpose of this sub-regulation,
(i) Maximum and minimum carrier levels are as per IS 13420 (Part 1):2002 IEC 60728-1 “Cabled distribution system for sound and television signals – Part 1: Methods of measurement and system performance”.
(ii) “Noise Margin” as per IS 13420 – The noise margin is the margin between the SNR leading to a bit error rate of 1E-4 and the SNR value of cable system.
(iii) “MER” as clarified in ETSI: Technical Report: Measurement guidelines for DVB systems.
(3) The Authority may appoint M/s. Broadcast Engineering Consultants India Ltd., or any other agency to conduct technical audit of the broadcaster and the multi-system operator to measure the quality of signals provided by the broadcaster at the headend of the multi-system operator and the quality of signals provided by the multi-system operator on its network.
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(4) The technical audit shall be carried out as per the measurement guidelines specified by Digital Video Broadcasting in European Telecommunications Standards Institute ETSI TR 101 290 V 1.2.1 (2001-05) and the picture quality measurement shall be carried out as per the methodology for subjective assessment of the quality of television pictures given in the recommendation by International Telecommunication Union (ITU).
Explanation: For the purpose of this sub-regulation:
(i) Recommendation by ITU is as per “ITU-R BT. 500-11 Methodology for subjective assessment of the quality of television pictures”.
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CHAPTER IX MISCELLANEOUS