How works Video on Demand service

Video on demand service can be provided in DTH system. The customer can select a movie from a large available video database. Individual customers can watch different programs day wish. Since it set top box can be addressed, special information as message can be delivered to individual viewers. For example, disaster warning like cyclone warning and heavy rain warning messages can be transmitted to set top boxes situated in the cyclone flash Run prone areas so that people can take precaution. Through DTH was envisaged to serve in remote areas, it has become popular in city households also. In future DTH will be operating in Ku band frequencies (17000 MHz to 21200 MHz and 21400 MHz to 22000 MHz).

With the saturation of available satellite is spectrum in the Ku band, attention has now turned to the relativity on used ku-band frequencies. In these frequencies high bandwidth and high power is part beams will be available. Because of high bandwidth availability, it is possible to transmit high definition TV (HDTV). The rain loss will be more compared to Ku band frequencies. But it is possible to have powerful satellites so that the service availability will be 99.95% in rain climate zones.