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STB FAQ
What is STB
What is DVB
Why it called DVB-S
Why it called DVB-C
Why it called DVB-

Define STB
Device that converts and displays data from analog cable, digital cable, or digital broadcast television to a standard frequency (channel number) for display on a standard analog television set, or a box that receives off-air DTV signal for display on a DTV monitor.

STB call Set-top box, it is responsible for receiving, converting and sending the picture and sound of the broadcast to the associated television. If your HDTV-ready TV has no built-in HDTV tuner you must connect it to a compatible HDTV STB first. Until then it will not receive and display digital television programs. This decoder for digital TV. The set-top box is a digital receiver that converts the digital stream of MPEG data into analogue images and sounds. The receiver consists of three main component groups: Receiving module with tuner, QPSK demodulator and FEC correction CA system. Here a smart card is used to determine whether the set-top box may decode encrypted data, and transmit this on to the customer.

Also some person call it as satellite TV broadcasting. It used to receive and decode the DTV signal and deliver it to a monitor. The STB may also be capable of capturing and decoding enhanced television transmissions. Other types of STBs are used to convert and decode data for analog cable, digital cable and small dish satellite. Some, but not all of these STBs are also capable of decoding DTV.

Define DVB
DVB is short for Digital Video Broadcast, it is a same device as STB. It is a suite of internationally accepted, open standards for digital television maintained by the DVB Project, an industry consortium with more than 300 members, and published by a Joint Technical Committee (JTC) of European Telecommunications Standards Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC) and European Broadcasting Union (EBU).The standards can be obtained for free at the ETSI website after registration.

Why it called DVB-S
DVB-S receive signal via satellite.

Why it called DVB-C
DVB-C receive signal via cable.

Why it called DVB-T
Term used for digital terrestrial TV reception using the DVB standard.