 matcarlPremium
join:2007-03-09
Franklin Square, NY | reply to MeatChicken
Re: 150 HD channels Every OTA television station currently has 2 or 3 main signals, not counting any subchannels. Analog, SD Digital, and if they have an HD signal. The analog signal is being taken away. Everyone with an antenna will pick up the SD digital channel to replace it. That is also the signal that the government converter boxes will use to convert back to analog for people who get those boxes. |
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 amarryatVerizon FiOS
join:2005-05-02
Marshfield, MA
 ·Verizon FiOS
| said by matcarl:Every OTA television station currently has 2 or 3 main signals, not counting any subchannels. Analog, SD Digital, and if they have an HD signal. The analog signal is being taken away. Everyone with an antenna will pick up the SD digital channel to replace it. That is also the signal that the government converter boxes will use to convert back to analog for people who get those boxes. Seems like a waste of space to carry both the SD and HD versions. What is the purpose of carrying the SD version of the HD channel? |
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1 edit | reply to matcarl
said by matcarl:Every OTA television station currently has 2 or 3 main signals, not counting any subchannels. Analog, SD Digital, and if they have an HD signal. The analog signal is being taken away. Everyone with an antenna will pick up the SD digital channel to replace it. That is also the signal that the government converter boxes will use to convert back to analog for people who get those boxes. If you say that's the way it is I don't doubt you. I'm just saying that's a stupid way. It's also a way that robs bandwidth from HD for no good reason.
said by matcarl:The purpose is for the millions of people who have no HD Again, no doubts if you say that's the case, but there are more efficient and logical ways to handle it (i.e. converter boxes taking in 1080i/720p and outputting 480i digital). |
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matcarlPremium
join:2007-03-09
Franklin Square, NY | reply to amarryat
The purpose is for the millions of people who have no HD |
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said by matcarl:Every OTA television station currently has 2 or 3 main signals, not counting any sub channels. Analog, SD Digital, and if they have an HD signal. matcarl - in my area (Philly - at least at present) NONE of the stations has an SD Digital OTA signal that I can find. All the digital signals available are either HD or SD sub-channels (weather, traffic, etc.). Perhaps this will change when they drop the analog signal? BUT doing so would reduce the bandwidth available for the HD broadcast since it all comes out the same channel bandwidth.
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REMEMBER: Stupidity should be painful !! |
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amarryatVerizon FiOS
join:2005-05-02
Marshfield, MA Reviews:
·Verizon FiOS
| reply to matcarl
said by matcarl:The purpose is for the millions of people who have no HD How are they going to pick up the SD signal?
I have a DVD recorder with a digital tuner. It tunes both SD and HD channels. And you can watch them on a regular non HD TV. That being said, it seems like a waste to carry both if the tuners can tune both and provide both to a standard TV. |
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matcarlPremium
join:2007-03-09
Franklin Square, NY
1 edit | reply to keyboards
Here is a nice 150 page document explaining most of the digital conversion if you have the time to read it
»hraunfoss.fcc.gov/edocs_public/a···28A1.pdf |
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1 edit | reply to matcarl
said by matcarl:Every OTA television station currently has 2 or 3 main signals, not counting any subchannels. Analog, SD Digital, and if they have an HD signal. This is wrong.
In NY, None of the 3 networks have an "SD" digital signal.
WCBS, WABC & WNBC.
ABC & NBC each have a couple of digital subchannels of "Weather Plus" & similar, CBS Only has an HD digital feed with no subchannels. |
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amarryatVerizon FiOS
join:2005-05-02
Marshfield, MA Reviews:
·Verizon FiOS
1 edit | reply to keyboards
said by keyboards:matcarl - in my area (Philly - at least at present) NONE of the stations has an SD Digital OTA signal that I can find. All the digital signals available are either HD or SD sub-channels (weather, traffic, etc.). Perhaps this will change when they drop the analog signal? BUT doing so would reduce the bandwidth available for the HD broadcast since it all comes out the same channel bandwidth. Where I am, the local PBS station has an SD subchannel which shows the same programming as the analog version. The HD version of this channel carries HD programming and is usually not showing the same thing as the SD version. |
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matcarlPremium
join:2007-03-09
Franklin Square, NY | reply to amarryat
said by amarryat:said by matcarl:The purpose is for the millions of people who have no HD How are they going to pick up the SD signal? I have a DVD recorder with a digital tuner. It tunes both SD and HD channels. And you can watch them on a regular non HD TV. That being said, it seems like a waste to carry both if the tuners can tune both and provide both to a standard TV. Right, your digital tuner is tuning in both. That's the way it's going to be. |
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amarryatVerizon FiOS
join:2005-05-02
Marshfield, MA Reviews:
·Verizon FiOS
| said by matcarl:said by amarryat:said by matcarl:The purpose is for the millions of people who have no HD How are they going to pick up the SD signal? I have a DVD recorder with a digital tuner. It tunes both SD and HD channels. And you can watch them on a regular non HD TV. That being said, it seems like a waste to carry both if the tuners can tune both and provide both to a standard TV. Right, your digital tuner is tuning in both. That's the way it's going to be. So what is the purpose of carrying the SD digital channel? |
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| reply to matcarl
Thanks, I'll give it a look when I have a few spare moments 
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REMEMBER: Stupidity should be painful !! |
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| reply to amarryat
said by amarryat:said by keyboards:matcarl - in my area (Philly - at least at present) NONE of the stations has an SD Digital OTA signal that I can find. All the digital signals available are either HD or SD sub-channels (weather, traffic, etc.). Perhaps this will change when they drop the analog signal? BUT doing so would reduce the bandwidth available for the HD broadcast since it all comes out the same channel bandwidth. Where I am, the local PBS station has an SD subchannel which shows the same programming as the analog version. The HD version of this channel carries HD programming and is usually not showing the same thing as the SD version. This is Exactly the same in NYC..
I don't get where matcarl thinks there is currently an "SD" digital signal, since here in my & his market, WCBS, WNBC & WABC all do NOT have any "SD Digital" signal being broadcast. |
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matcarlPremium
join:2007-03-09
Franklin Square, NY | reply to keyboards
Almost every station in the country is currently simulcasting their analog signal to digital. This SD version will replace the analog version. It's as simple as that. |
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1 edit | said by matcarl:Almost every station in the country is currently simulcasting their analog signal to digital. This SD version will replace the analog version. It's as simple as that. Where are you getting "almost every" since "almost None" are actually broadcasting any "SD digital" signal ...
Again, WCBS, WNBC & WABC do NOT . Philly doesn't .. ect ... |
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amarryatVerizon FiOS
join:2005-05-02
Marshfield, MA Reviews:
·Verizon FiOS
| reply to matcarl
said by matcarl:Almost every station in the country is currently simulcasting their analog signal to digital. This SD version will replace the analog version. It's as simple as that. I thought in the end that the HD will be replacing the analog. So why carry it in SD too since tuners can receive both? |
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matcarlPremium
join:2007-03-09
Franklin Square, NY | said by amarryat:said by matcarl:Almost every station in the country is currently simulcasting their analog signal to digital. This SD version will replace the analog version. It's as simple as that. I thought in the end that the HD will be replacing the analog. So why carry it in SD too since tuners can receive both? The same reason we have both now. |
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matcarlPremium
join:2007-03-09
Franklin Square, NY | reply to MeatChicken
WABC was probably the first in this area to do so. If you have a TV with a digital tuner you will find them all. |
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| reply to amarryat
said by amarryat  I thought in the end that the HD will be replacing the analog. So why carry it in SD too since tuners can receive both?
[/BQUOTE : There isn't much "SD" being OTA broadcast. If you have a digital tuner on an SD set, for example, & you tune to WCBS, you are seeing the HD channel downconverted to SD .. Which may lead some to "believe" there is an SD digital subchannel., but there simply isn't one being broadcast. Matcarl can easily look this up & verify that none of the 3 networks in his area or most others, are transmitting an SD digital channel OTA. |
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amarryatVerizon FiOS
join:2005-05-02
Marshfield, MA Reviews:
·Verizon FiOS
1 edit | reply to matcarl
said by matcarl:said by amarryat:said by matcarl:Almost every station in the country is currently simulcasting their analog signal to digital. This SD version will replace the analog version. It's as simple as that. I thought in the end that the HD will be replacing the analog. So why carry it in SD too since tuners can receive both? The same reason we have both now. I think we have both now because the analog signal is still around. Once the analog signal is gone, why take HD broadcast and downcovert to SD at the station and transmit both an HD and SD feed of the same programming? Since the tuners can pick up either and supply either to the old TV, there is no point in carrying both.
Maybe I am understanding it incorrectly, but since a digital tuner can receive either and present either to an old TV, then why would a broadcaster send out 2 transmissions of the same thing - seems a bit redundant. |
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