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WHO IS BUYING UP HD CHANNELS

R

radiofreqk1

Guest
HD Channels 1 + 2 are for broadcast programming, HD-3 is most often PBS talking Service, RDS, or Non-Commercial Programming and HD-4 is Data / Text programming. Heard that at least TWO companies are buying up the HD-4 channels -- for special services. Microsoft to provide a nationwide access for it's services and another company in Canada, Called World Band Media. Does anyone know of any company that is willing to buy or lease HD channels 3 or 4 ???
 
sam said:
HD Channels 1 + 2 are for broadcast programming, HD-3 is most often PBS talking Service, RDS, or Non-Commercial Programming and HD-4 is Data / Text programming. Heard that at least TWO companies are buying up the HD-4 channels -- for special services. Microsoft to provide a nationwide access for it's services and another company in Canada, Called World Band Media. Does anyone know of any company that is willing to buy or lease HD channels 3 or 4 ???
Click to expand...

RDS? I'm confused by that... HD Radio delivers station ID, program type, and text in the underlying transport stream, it doesn't have to use a dedicated program stream such as HD-3. However, it does appear to lack things that RDS has, such as CT (to set the clock) and AF (alternate frequency). Someone told me it has these features, but there is nothing in the spec mentioning them. Every HD-Radio receiver that I am aware of which can automatically set its own clock does so via RDS CT.

You would think the iBiquity engineers would have at least copied the features of a working system like RDS/RBDS... kind of a no-brainer isn't it?
 
Philip J. Smith said:
sam said:
HD Channels 1 + 2 are for broadcast programming, HD-3 is most often PBS talking Service, RDS, or Non-Commercial Programming and HD-4 is Data / Text programming. Heard that at least TWO companies are buying up the HD-4 channels -- for special services. Microsoft to provide a nationwide access for it's services and another company in Canada, Called World Band Media. Does anyone know of any company that is willing to buy or lease HD channels 3 or 4 ???
Click to expand...

RDS? I'm confused by that... HD Radio delivers station ID, program type, and text in the underlying transport stream, it doesn't have to use a dedicated program stream such as HD-3. However, it does appear to lack things that RDS has, such as CT (to set the clock) and AF (alternate frequency). Someone told me it has these features, but there is nothing in the spec mentioning them. Every HD-Radio receiver that I am aware of which can automatically set its own clock does so via RDS CT.

You would think the iBiquity engineers would have at least copied the features of a working system like RDS/RBDS... kind of a no-brainer isn't it?
Click to expand...
There's no need to dupliacate this via HD. HD does not preclude anything under 100 KHZ in a standard FM signal. Which means all of the RDS stuff will work.

Clouseau
 
I was told that there are a few companies -- "buying" or leasing HD channels 3 + 4. Anyone heard or know about it ?
 
I haven't seen a Ibquity licensing agreement in a while, but doesn't one have to share a portion of the revenue if you encrypt or lease a channel? I could be wrong. With DTV, if you use a alternate "channel", (dot-2, dot-3, etc), the government takes a percentage of that revenue.
 
I havent seen anyone doing HD-4. The $$ for 4 streams to Ibquity. 3 streams divided between the main 96 kbs and the added 24 kbps in the Hybrid Mode. Main mode 48/24/24 or 32/32/32 kbps. ????
 
If a station broadcasts in analog and IBOC HD and there is 96kbps of bandwidth for HD subchannels, then how much bandwidth would there theoretically be for a all-digital FM station with no analog carrier?
 
Chad-Stevens said:
If a station broadcasts in analog and IBOC HD and there is 96kbps of bandwidth for HD subchannels, then how much bandwidth would there theoretically be for a all-digital FM station with no analog carrier?
Click to expand...

300 kbit/s All digital mode. Ain't going to happen in our lifetime. However it is possible for existing iboc equipped stations to reduce their analog deviation to allow "extended mode" thus increase the digital bandwidth from 96k to approx 150Kb/sec. I have been told, but can't confirm that at least one NY station is already doing so.

It seems more likely that it would be the AM band where stations would be given the all-digital option first.

If you are interested in a more comprehensive technical explanation of the FM iboc system:

http://www.nautel.com/Resources/Docs/Whitepapers/8_FCC_FM_Specs.pdf

Lino
 
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