12.05.2006 08:00 AM
Texas station may be first to transmit two HD, one SD stream in single channel

KXII TV, the Gray Television-owned station in Sherman, TX, has launched what may be the world's first live ATSC service with two HD channels and one SD channel in the allocated 19.4Mb/s spectrum.

The station is simultaneously broadcasting CBS in 1080i HD, Fox in 720p HD and MyNetwork, branded "MyTexoma," in 480i SD. The station is using Harmonic DiviCom MV 500 MPEG-2 HD encoders and MV 100 MPEG-2 SD encoders for its digital upgrade to deliver the three channels in its 6MHz spectrum allotment. Statistical multiplexing is being done with Harmonic’s DiviTrack, and the whole system is being managed by its NMX Digital Service Manager.

According to station chief engineer Randy Wells, the station devotes “a rather generous amount” of bandwidth to the HD streams — 5Mb/s to 15Mb/s for the CBS stream and 4Mb/s to 14Mb/s for the Fox stream — and is “pretty lean” on the SD stream, which runs between 1Mb/s and 6Mb/s.

To learn more about KXII’s implementation read: "KXII transmits two HD, one SD channel in 6MHz," a recent Sound Off interview in HD Technology Update.

For more information, visit www.harmonicinc.com.



Comments
Post New Comment
If you are already a member, or would like to receive email alerts as new comments are
made, please login or register.

Enter the code shown above:

(Note: If you cannot read the numbers in the above
image, reload the page to generate a new one.)

No Comments Found




Wednesday 11:59 PM
Peer Profile: Tomaž Lovsin, STN, Slovenia
“Will there be a shift from coax to fibre? Or a mixture between the two which will require hybrid solutions to be implemented?”

Wall Street Communications /   Wednesday 07:02 PM
SMPTE Announces 2014 Honorees and Award Winners
HighRez /   Tuesday 02:21 PM
Over The Air and Cable TV: Far From Dead

 
Featured Articles
Discover TV Technology