News from the ABU Region
35
News from the ABU Region
Bangladesh
Betar’s New Transmitting Site Bangladesh Betar decided to upgrade the existing Kabirpur transmitting site with the Ampegon HP-RCA 2/2 to optimize the international shortwave coverage. Based on a rigid dipole array and a tubular shaft, the HP-RCA 2/2 is a back-to- back arrangement of a low-band and a high-band curtain antenna equipped with reflector screens. The 2/2 dipole array configuration gives a good radiation characteristic and the antenna gain of up to 19 dBi assures sufficient signal field strength in the coverage area. The antenna operates to any azimuth and can rotate 180 degrees in less than three minutes.
To take into consideration the environmental conditions at the site, the antenna is designed for a maximum survival wind speed of 240 kph and a maximum operational wind speed of 120 kph. By using rigid1/2 folded dipoles, which are mounted to the steel structure at their “zero potential” point, the need of insulators in structural parts is eliminated and perfect static grounding is assured.
(APB) Hong Kong Broadcasters Urged to Protect C-band
Describing satellite C-band frequencies as “the lifeblood” of broadcast distribution in the Asia-Pacific region, the Cable & Satellite Broadcasting Association of Asia (CASBAA) urged broadcasters to take immediate action in joining efforts with the satellite industry to safeguard the C-band spectrum for satellite services.
The new initiative, which has also been endorsed by the Asia- Pacific Broadcasting Union (ABU), the Asia-Pacific Satellite Communications Council (APSCC), the World Broadcasting Union’s (WBU) International Satellite Operations Group, and the Global VSAT Forum, is likely to thrust the divisive issue of spectrum allocation firmly back under the spotlight.
CASBAA stated that terrestrial wireless companies are lobbying heavily for additional spectrum in the C-band (receive/uplink) frequency band of 3.4G-4.2GHz. In addition, a new effort has been initiated for these companies to operate within the C-band (transmit/uplink) frequency band of 5.8-6.4/6.7GHz. If allowed to come to fruition, excessive levels of interference might occur, which may in turn preclude future use for satellite services in the Asia-Pacific.
GVF stated that wireless sharing with satellite services is being considered – and is opposed by the GVF Regulatory Working Group – at C-, Ku-, Ka- and V-band in national regulatory proceedings in every major region of the world and it is critical that a global Satellite Spectrum Campaign be coordinated immediately to more forcefully address the broadband wireless industry’s ongoing efforts in preparation for WRC-15, where the challenges will be greater for the satellite industry.
(APB) India
“National Robocon Contest” Conducted Doordarshan (Prasar Bharati) and MIT Academy of Engineering Pune organised the National Robot Contests from 7th to 9th March 2013 to select the best Indian Team for their participation in the 12th ABU Asia-Pacific Robocon 2013 scheduled to take place from 17th to 19th Aug at DaNang, Vietnam. Teams from 75 Engineering Institutes across the country enthusiastically participated in the event. MIT Pune was adjudged the Best Team. Apart from Winners and Runners up, several awards were given to various teams for the Best Idea, Economy, Efficiency, Elegance, Aesthetics and Innovativeness. A special award was given to a team coming from Engineering Institute from Rural Background. MIT Academy of Engineering, along with members of the Doordarshan have helped in increasing the popularity of the game in India and are now well geared up to host the 13th ABU Asia Pacific Robocon 2014 at Pune India.
(MIT Academy)
International New Video Codec
The introduction of the new High Efficiency Video Coding (HEVC), or H.265, standard will “considerably ease the burden” on overloaded networks, said the International Telecommunications Union (ITU), because it requires only half the bit-rate of its predecessor, ITU-T H.264/MPEG-4 AVC. HEVC will unleash a new phase of innovation in video production spanning the whole ICT spectrum, from mobile devices to Ultra-HDTV.
ITU-T’s Study Group 16 has agreed the first-stage approval of the standard, formally known as Recommendation ITU-T H.265 or ISO/IEC 23008-2. The standard is collaboration
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48