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Difference Between DVBS DVBC DVBT DVBH

DIFFERENCE BETWEEN DVBS DVBC DVBT DVBH

Introduction Of DVB

DVB stands for Digital Video Broadcasting. DVB is a project and it is group of 200 companies. This group works for Digital Media Delivery System as well as broadcasting. There is a annual membership for this group. It is governed by MoU.

The DVB project members develop the specification and then agree on it. After this it gets approved and standardized by the ETSI ,EBU and CENELEC.

Now we will discuss about What Is Difference Between DVBS  DVBC  DVBT  DVBH.

DVBS

DVB-S stands for Digital Video Broadcasting Satellite. S represent the satellite broadcast. DVBS meaning is to deliver the services in one or many countries via satellite. There are three factors responsible for DVBS known as Modulation Technique , Encoding Technique and FEC (Frequency Error Control).

A DSNG is a example of DVBS. Where DSNG stands for Digital Satellite News Gathering.

To know more about DVBS see   What Is DVBS and DVBS2

 

DVBC

DVB-C stands for Digital Video Broadcasting Cable. So letter C represents for Cable Tv. A signal which goes from Digital Headend to the subscriber comes under DVBC system. These signal from the headend to to subscriber end carries in fiber and co axial cable.

It uses the modulation technique of 64 QAM or 256 QAM. In DVBC the compression technique are used  MPEG 2 and MPEG4.

To know more about DVBC see   What Is Digital Headend

 

DVBT

DVB-T stands for Digital Video Broadcasting Terrestrial. It is digital terrestrial television. The best thing about DVBT is that you can use small indoor antenna instead of traditional antenna on roof.

DVBT use the UHF and VHF frequencies. 16 QAM and 64 QAM modulation are used in DVBT. It uses the OFDM. Where OFDM stands for Orthogonal Frequency Division Multiplexing. In DVBT compressed data are transmitted in MPEG form.

To know more about DVBT see   What Is DVBT and DVBT2

 

DVBH

DVB-H stands for Digital Video Broadcasting Handheld. So H represent the handheld devices like Mobile and PDA (Personal Digital Assistance) device. DVBH developed from the DVBT by doing modifications in it. Many things were noticed for development of DVBH like less consuming of mobile battery , mobile friendly and single antenna.

It use the VHF , UHF and L band frequencies. DVBH is a mobile tv standard.

To know more about DVBH see   What Is DVBH Or Mobile TV

 

Conclusion DVBS DVBC DVBT DVBH

DVB is alliance of 200 companies working for DVB project to develop specification and then approved and standardized them from ETSI ,EBU and CENELEC.

DVBS is responsible for satellite tv broadcast , DVBC is responsible for cable tv , DVBT is responsible for Terrestrial television and DVBH is responsible for mobile tv services.

Thus this is all about Difference between DVBS DVBC DVBT DVBH .

Know More About   what is CBR VBR MBR

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    Ujjwal Swami is Founder Of Headend INFO. He is a Entrepreneur and working for Cable Industry. He is also working for STB HD, Go For Tricks And Heterochromia Iridum Contact Admin@HeadendINFO.com Whatsapp No. +91 8239222444 (To Join Headend INFO Whatsapp Group Send Request On Above Number)

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