Digital TV
Over-the-air TV broadcasting is going through a global transition from analog to digital transmission. This is motivated by digital TV's much superior bandwidth efficiency, higher reception quality and the possibilities it opens up for advanced services such as HD programming. Just as importantly, precious spectrum vacated by analog transmission can be re-used or auctioned off, yielding immediate and significant financial gains for the state. These benefits justify the pain and expense involved in completely re-building the transmission network and forcing consumers to upgrade to a digital receiver at home, and are the reason why the ITU has mandated a global end to analog transmission by 2015.
Broadcast Mobile TV
Broadcast mobile TV involves the broadcasting of targeted television content to cellular handsets. To make the most efficient use of scarce spectrum resources and achieve cost-effective network coverage, broadcast mobile TV employs dedicated frequencies and special signal formats. It requires, therefore, a new transmission network that is separate from the cellular base-stations that handle mobile voice and data communications.
Channelot's Solution
Initial digital TV and mobile TV roll-outs leverage the legacy high-power sites that had served analog TV. However, cost-efficient and robust coverage in dense urban areas and inside buildings will make use of Single Frequency Network (SFN) technology and be based on a much larger number of relatively low-power sites.
Channelot's mobile TV transmission-site-in-a-box products go beyond the traditional single-function modules such as network interface, modulator etc to provide the fully integrated drop-in solution for the low-power and low-footprint mobile TV site.
Channelot's transmission stations are purpose-built for the demanding environment of the small, remote and unmanned installation. They thus form the ideal basis for today's and tomorrow's large-scale digital TV and mobile TV deployments.
