HOME
PRODUCTS
PARTNERS
COMPANY
ORDERING INFO
WHY BUY FROM US
MARKETING
SUPPORT
CONTACT
RESOURCES
NEWS
INVEST
SHIRT PICS WORLDWIDE

SEARCH by DVEO PRODUCT NAME:

Home >> Digital Signage >> QAM or 8VSB for Digital Signage

      
QAM or 8VSB for DIGITAL SIGNAGE?


HD LCD and Plasma televisions have been dropping in price dramatically over the last few years. Digital television modulators are now also available at reasonable prices.

By law, all digital televisions must have MPEG-2 decoders and both 8VSB and QAM demodulators.

The marriage of these technologies presents a wonderful opportunity to create low cost digital signage systems to carry prerecorded video content.

When faced with the decision as to which modulation to use it is a relatively easy choice. QAM (64, 256) can carry 38 Mbps. and 8VSB can carry 19.2 Mbps. This means that QAM can deliver two HD signals to a TV set, whereas 8VSB can deliver only one. In a well designed content lineup, one can modulate three 12.9 Mbps streams with QAM but only 12.9 Mbps high definition stream with 8VSB. Basically one can allocate the 38 or 19 Mbps any way between SD and HD streams.

Conclusion: For Digital Signage QAM Modulation provides better bandwidth and thus offers better value!

 

Laszlo (Les) Zoltan, BSEE
Computer Modules, Inc.

Sort by name:

DVB ASI PCIe cards,targeted ad servers,mpeg-2 to H.264 transcoders, DVB-S2 modulator, DVB-T modulator, Multichannel HLS encoder, ARQ error correction, Prompeg error correction, Packaging live servers, QAM modulator, 8VSB modulator and receiver, digital television modulator, broadcast MPEG-2 encoder, IP H.264 encoder, H.264 decoder, Transport Stream capture, ASI playback, Transport Stream analyzer, Video over ip, mpeg over ip, Mobile TV, television test equipment , Streaming Video encoders, Live Video streaming sytems, video graphics overlay, Video Tape conversion, digital signage, Cable Head end systems, audio over ip, streaming media appliances, transport stream multiplexer, DVB-T2 modulator, DVB-T receiver, 8VSB to IP, Multichannel Streaming DVEO, AD Insertion server, Ad server, VOD and packaging servers, hdmi to coax, mpeg 2 encoders, modulator tv, digital tv modulator, digital headend, edge QAMs , hd encoder, H.265 encoders, iptv encoder, hd encoder software, hd encoders, digital broadcast modulation, rf video modulator, h264 encoders, catv modulator, ISDB-T modulator, ip video server hardware, video encoding, wireless ip video server, mpeg 4 encoder hardware, hdmi to ethernet adapter, industrias audiovisuales, audio video profesional, sonido profesional, eventos en vivo, integraciĆ³n de sistemas

DVB ASI PCIe cards,targeted ad servers,mpeg-2 to H.264 transcoders, DVB-S2 modulator, DVB-T modulator, Multichannel HLS encoder, ARQ error correction, Prompeg error correction, Packaging live servers, QAM modulator, 8VSB modulator and receiver, digital television modulator, broadcast MPEG-2 encoder, IP H.264 encoder, H.264 decoder, Transport Stream capture, ASI playback, Transport Stream analyzer, Video over ip, mpeg over ip, Mobile TV, television test equipment , Streaming Video encoders, Live Video streaming sytems, video graphics overlay, Video Tape conversion, digital signage, Cable Head end systems, audio over ip, streaming media appliances, transport stream multiplexer, DVB-T2 modulator, DVB-T receiver, 8VSB to IP, Multichannel Streaming DVEO, AD Insertion server, Ad server, VOD and packaging servers, hdmi to coax, mpeg 2 encoders, modulator tv, digital tv modulator, digital headend, edge QAMs , hd encoder, H.265 encoders, iptv encoder, hd encoder software, hd encoders, digital broadcast modulation, rf video modulator, h264 encoders, catv modulator, ISDB-T modulator, ip video server hardware, video encoding, wireless ip video server, mpeg 4 encoder hardware, hdmi to ethernet adapter, industrias audiovisuales, audio video profesional, sonido profesional, eventos en vivo, integraciĆ³n de sistemas