A Better Hi-Def Conversion Question (I Hope)
 

On Fri, Jan 4, 2008, 6:45am (EST+5) (JXStern)
wrote:

Those high numbers are artifacts of cable
systems, OTA does not use anything higher
than 51.

OTA *won't* use anything higher than 51 *after* February 17, 2009. Now,
though, there *are* OTA channels from 51 to 69. That's why that segment
of the spectrum cannot be auctioned off now.

A Better Hi-Def Conversion Question (I Hope)
 

On Thu, 03 Jan 2008 20:33:43 -0500, Barry Margolin
wrote:

In article
,
wrote:

On Jan 3, 7:42*pm, Barry Margolin wrote:

wrote:
It's actually the same channels, minus a few at the high and low end.
It's the signal that is different.

That doesn't sound right. *Currently they're transmitting BOTH digital
and analog, so they obviously have to be on different frequencies. *In
2009 the analog transmissions go away, because the FCC wants to use
those frequencies for new applications.

Yes, they're doing both on the same TV band, but the new digital
stations are on channels that you're already getting static on. Since
you don't have a digital receiver, it can't come in as a picture at
all. So the part of the spectrum remains the same, but because they're
coexisting in the same space, digital's just using up what's available.

But isn't the whole reason that they're forcing the switch to digital
because they want to auction off the old analog frequencies to new
applications?

On 1 channel, "6" MHz bandwidth, they can get, using digital (it is
compressed), 50 or more audio programs, 5 or 10 SD programs, or 1 HD
program plus some SD. My numbers are likely in error; my concepts are
not.

Yes, some of the spectrum is proposed to be auctioned ... originally
2-6, I think, and those above about 55 to 83. As I understand it, not
all of the 2-6 is still going away, but I'm unsure of the truth of
that, and VERY unsure of the details.

A Better Hi-Def Conversion Question (I Hope)
 

On Fri, 4 Jan 2008 06:53:48 -0500, (Cinder Lane)
wrote:

OTA *won't* use anything higher than 51 *after* February 17, 2009. Now,
though, there *are* OTA channels from 51 to 69. That's why that segment
of the spectrum cannot be auctioned off now.

Not disagreeing at all, but when did 70-83 go away; UHF tuners used to
go 14 to 83, I'm pretty sure.

A Better Hi-Def Conversion Question (I Hope)
 

On Jan 4, 11:43*am, GeorgeB wrote:

Not disagreeing at all, but when did 70-83 go away; UHF tuners used to
go 14 to 83, I'm pretty sure.

Maybe, but was there anything to watch up there?

A Better Hi-Def Conversion Question (I Hope)
 

On Fri, 04 Jan 2008 11:43:23 -0500, GeorgeB wrote:

On Fri, 4 Jan 2008 06:53:48 -0500, (Cinder Lane)
wrote:

OTA *won't* use anything higher than 51 *after* February 17, 2009. Now,
though, there *are* OTA channels from 51 to 69. That's why that segment
of the spectrum cannot be auctioned off now.

Not disagreeing at all, but when did 70-83 go away; UHF tuners used to
go 14 to 83, I'm pretty sure.

They went away a long time ago. Around 1980.



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A Better Hi-Def Conversion Question (I Hope)
 

Didn't tuners go up to 124 at one time?

A Better Hi-Def Conversion Question (I Hope)
 

On Jan 5, 12:47*am, Jerome Zelinske wrote:
* * * Didn't tuners go up to 124 at one time?

I've seen that on cable settings, but not OTA.

A Better Hi-Def Conversion Question (I Hope)
 

On Jan 4, 9:47*pm, Jerome Zelinske wrote:
* * * Didn't tuners go up to 124 at one time?

There many lists but this one seems pretty concise.

http://www.chem.hawaii.edu/uham/catvfreq.html

As far as the channel 3 for converters goes, the external signal would
have to be pretty strong to cause problems within the closed system of
converter to TV when the only analog TV channel 3 comes only from the
converter. Remember all those analog stations are 'dark'.

GG

A Better Hi-Def Conversion Question (I Hope)
 

On Jan 5, 1:29*am, G-squared wrote:

As far as the channel 3 for converters goes, the external signal would
have to be pretty strong to cause problems within the closed system of
converter to TV when the only analog TV channel 3 comes only from the
converter. Remember all those analog stations are 'dark'.

If they're selling off the frequency, it's gonna interfere with
something.

A Better Hi-Def Conversion Question (I Hope)
 

On Sat, Jan 5, 2008, 5:47am (EST+5)
(Jerome*Zelinske) wrote:

Didn't tuners go up to 124 at one time?

The CATV channels go up to 158 (upper frequency 1GHz). Cable systems
offering that many channels usually scramble them, requiring their
proprietary set-top boxes, so manufacturers have no reason to include
that many channels in cable-ready TV tuners. Your number (124) seems to
be about right.