Friday 10 May 2019

MYTV Direct-To-Home (DTH) satellite transmission service

Malaysia digital television service provider, MYTV has 93% DTT coverage in the country currently, its DTT (digital terrestrial television) service transmits via DVB-T2 platform. 
While 93% of areas were covered, but some of areas are not covered by DTT. 

Negeri Sembilan important TV transmission site Gunung Telapak Burok has no DVB-T2 transmission till today, this makes me a bit disappointing (maybe budget problem or other reason). Not only in Gunung Telapak Burok, other locations such as Bukit Penara (for Penang), Bukit Palong (Baling Kedah) are not installed DTT transmission.

Instead MYTV launches alternative platform to those areas are not covered by DTT, it is DTH (Direct to home) via satellite, briefly say that people who watch MYTV via DTH receiver will receive from AsiaSat-9 satellite.

The benefit of MYTV DTH platform is to reduce launching gap filler transmitter (but Gunung Telapak Burok is not gap filler site), it also can cover many blind spot areas.
According to Lyngsat, MYTV DTH is located at 11.49GHz (equal to 11490MHz). Generally it is Ku band transmission, but technically it is under X band.
Ku-band frequency range is between 12 to 18GHz, but MYTV DTH transmission is located within X band frequency range, just upper frequency. X band frequency range is 8 to 12 GHz.
In term of IEEE standard, MYTV 11.49GHz is located on X band, meanwhile for obsolete designation NATO, it is located on Ku band for old nomenclature. Inversely, for NATO's new nomenclature, MYTV DTH on 11.49GHz from AsiaSat-9 is located on J band. So, overall between these 3 different technical standards, we prefer IEEE standard, rather than NATO. In conclusion, MYTV is on X band.

In respect of MYTV DTH transmission frequency allocation, it is at X band, but I'm not sure MYTV DTH transmission has same characteristic as Ku band or not which is rain fade like Astro, rain fade is signal loss during raining. This question must be asked to those DTH users, then we would know. By the way, the most important is I would like to see MYTV Gunung Telapak Burok is available of DTT transmission as it is main site for Negeri Sembilan (Seremban, Kuala Pilah, Jelebu, Port Dickson and Jempol).

DTH somehow has its pros and cons. The advantage is cost effective because a satellite can cover whole country by saving transmission costs for no commercial value gap filler transmission sites (example Gua Musang, Gerik, Lenggong and Jerantut), then better spectrum efficiency by not consuming UHF band, meanwhile its disadvantage is rain fade when the satellite frequency is allocated on Ku band, somehow X band may have same characteristic with Ku band.
DTH is more suitable for gap filler coverage and inner areas. Cameron Highlands is an example, its transmission site is in Gunung Brinchang, but not all areas within Cameron Highlands can receive MYTV via DVB-T2 (DTT) from Gunung Brinchang, it needs more gap filler transmitters within Cameron Highlands, this will cost more. So, DTH transmission from AsiaSat-9 is more suitable than DTT for Cameron Highlands. Same situation as Gua Musang, where many areas cannot receive signals from Bukit Chupak.



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