Bangladesh Betar Radio to launch HD broadcasting across South Asia region

THAKUR

EntMnt Contributor
Finest Member
Bangladesh’s government broadcaster, Betar Engineering, will be the first to launch HD Radio across the South Asia region, covering 18 million listeners with a turnkey system from GatesAir.

GatesAir is a provider of wireless, over-the-air content delivery solutions for radio and TV broadcasters. The HD Radio broadcasts, which will be turned on in early 2016, are supported by two GatesAir Flexiva™ 10kW transmitters.

They will cover the capital city of Dhaka and surrounding regions with high-quality audio for news and entertainment. Bangladesh Betar Radio chose HD broadcasting due to its exceptional audio quality and multichannel opportunities.

“Dhaka is considered the tenth largest city in the world, with a population of more than 18 million in the greater region,” said Md. Abul Bashar Patwary, project director, Betar Engineering. “We therefore required a highly reliable, easily serviceable over-the-air delivery platform to ensure consistently strong coverage across the entire region. GatesAir’s ability to provide a reliable, US-made platform in a timely manner is helping us get on the air faster—and on the leading edge of digital radio.”

GatesAir worked closely with Betar across site planning and system design, including all transmission, antenna, monitoring and peripheral equipment.

In addition to program audio, this architecture allows Betar to deliver program-associated data services (logos, station ID information, artist/song title details) over a single stream to the transmitter—with plenty of bandwidth to add more program channels in the future.

Signal coverage is strengthened through a higher-than-usual FM tower for Betar (250 feet as opposed to 200) and a panel antenna—the first of its kind deployed in Bangladesh.


Bangladesh Betar Radio to launch HD broadcasting across South Asia region - tvnews4u.com
 

Technoglitch

Core Member
HD Radio is a trademarked term for iBiquity's in-band on-channel (IBOC) digital radio technology used by AM and FMradio stations to transmitaudio and data by using a digital signal embedded “on-frequency” immediately above and below a station's standard analog signal, providing the means to listen to the same program in either HD (digital radio with less noise) or as a standard broadcast (analog radio with standard sound quality). The HD format also provides the means for a single radio station to simultaneously broadcast one or more different programs in addition to the program being transmitted on the radio station's analog channel.

How It Works
how_it_works.gif


  1. Stations bundle analog and digital audio signals (with textual data, such as artist and song information, weather and traffic, and more).
  2. The digital signal layer is compressed using iBiquity's HDC compression technology.
  3. The combined analog and digital signals are transmitted.
  4. The most common form of interference, multipath distortion, occurs when part of a signal bounces off an object and arrives at the receiver at a different time than the main signal. HD Radio receivers are designed to sort through the reflected signals and reduce static, hiss, pops and fades.
  5. The signal will be compatible with HD Radio receivers and analog radios

How It Works | iBiquity Digital Corporation
 
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