Chart of HDTV freqs?
 

Anyone have a URL of a chart of what the final HDTV freqs will finally be?

After viewing a dozen web pages from searches, I have more questions
than answers ... be nice to be able to plot a few different antennas.

Regards,
JS

Chart of HDTV freqs?
 

On Sun, 14 Sep 2008 12:21:37 -0700, John Smith
wrote:

Anyone have a URL of a chart of what the final HDTV freqs will finally be?

After viewing a dozen web pages from searches, I have more questions
than answers ... be nice to be able to plot a few different antennas.

I found this chart:
http://www.dtvprimer.com/DTVchannels.pdf
It looks correct for the few local HDTV stations, but is certainly
preliminary. No clue on the minor-channel layout as that's the
stations business, not the FCC's.

However, the actual channel number and the displayed channel number
might be different. See:
http://www.dtvprimer.com/freetv.html
in the section on PSIP (program and system info protocol) near the
bottom. If you understand what's happening, please let me know.

Incidentally, another wonderful feature of PSIP DCC (direct channel
change) is the ability to pre-record a collection of commericals in
the DVR, and later shove them in your face when you least want to see
them. Since many commercials are played over and over and over and
over again, why use valueable bandwidth sending them more than once?

Isn't technology wonderful?



--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

Chart of HDTV freqs?
 

Jeff Liebermann wrote in
:

On Sun, 14 Sep 2008 12:21:37 -0700, John Smith
wrote:

Anyone have a URL of a chart of what the final HDTV freqs will finally
be?

After viewing a dozen web pages from searches, I have more questions
than answers ... be nice to be able to plot a few different antennas.

I found this chart:
http://www.dtvprimer.com/DTVchannels.pdf
It looks correct for the few local HDTV stations, but is certainly
preliminary. No clue on the minor-channel layout as that's the
stations business, not the FCC's.

However, the actual channel number and the displayed channel number
might be different. See:
http://www.dtvprimer.com/freetv.html
in the section on PSIP (program and system info protocol) near the
bottom. If you understand what's happening, please let me know.

What is happening is that many TV stations have been assigned a
channel on which to broadcast their new DTV signal prior to Feb. 17,
2009 while at the same time remain broadcasting their NTSC video on
their original channel. The chart shows these two channel designations
in the first two channel columns, and in the last column it shows what
channel the TV station will end up on when Feb. 17 comes around. As
indicated, some stations will be moving their DTV broadcast from the
temporary channel assignment back to their original NTSC channel
assignment, and some stations will remain broadcasting the DTV signal
on the temporary channel, which becomes their new permanent channel.



Ed K7AAT

Chart of HDTV freqs?
 

Ed_G wrote:
Jeff Liebermann wrote in
:

On Sun, 14 Sep 2008 12:21:37 -0700, John Smith
wrote:

Anyone have a URL of a chart of what the final HDTV freqs will finally
be?

After viewing a dozen web pages from searches, I have more questions
than answers ... be nice to be able to plot a few different antennas.
I found this chart:
http://www.dtvprimer.com/DTVchannels.pdf
It looks correct for the few local HDTV stations, but is certainly
preliminary. No clue on the minor-channel layout as that's the
stations business, not the FCC's.

However, the actual channel number and the displayed channel number
might be different. See:
http://www.dtvprimer.com/freetv.html
in the section on PSIP (program and system info protocol) near the
bottom. If you understand what's happening, please let me know.

What is happening is that many TV stations have been assigned a
channel on which to broadcast their new DTV signal prior to Feb. 17,
2009 while at the same time remain broadcasting their NTSC video on
their original channel. The chart shows these two channel designations
in the first two channel columns, and in the last column it shows what
channel the TV station will end up on when Feb. 17 comes around. As
indicated, some stations will be moving their DTV broadcast from the
temporary channel assignment back to their original NTSC channel
assignment, and some stations will remain broadcasting the DTV signal
on the temporary channel, which becomes their new permanent channel.



Ed K7AAT

Here is the official ruling. There are 2 tables. The first is as of
now, the 2nd is effective 17 February 2009.

http://sujan.hallikainen.org/FCC/FccRules/2008/73/622/

Chart of HDTV freqs?
 

.... and some stations will be transmitting DTV on a third channel (not the
present analog nor the present DTV channel)

I have also found that a number of stations have applied for changes (so far
they seem to be ERP changes) to what is contained in the eighth FCC report
of March 2008. One needs to go to the FCC site and enter call sign of each
station to find the present information.

A surprise to me is that the coverage contour for analog TV is 64 dBu and
for DTV is 41 dBu - a difference of 23 db. However, the reductions of ERP
do not seem to be that large. Stations that are now a bit weak may be
unusable after Feb. 2009.

73, Mac N8TT


J. McLaughlin; Michigan, USA
Home:
----- Original Message -----
From: "Ed_G"
Newsgroups: rec.radio.amateur.antenna
Sent: Sunday, September 14, 2008 8:27 PM
Subject: Chart of HDTV freqs?


Jeff Liebermann wrote in
:

snip

What is happening is that many TV stations have been assigned a
channel on which to broadcast their new DTV signal prior to Feb. 17,
2009 while at the same time remain broadcasting their NTSC video on
their original channel. The chart shows these two channel designations
in the first two channel columns, and in the last column it shows what
channel the TV station will end up on when Feb. 17 comes around. As
indicated, some stations will be moving their DTV broadcast from the
temporary channel assignment back to their original NTSC channel
assignment, and some stations will remain broadcasting the DTV signal
on the temporary channel, which becomes their new permanent channel.



Ed K7AAT

Chart of HDTV freqs?
 

Right now, the Analog channels that I get solid and noise free seem to be
subject to fades on their UHF DTV counterpart. Makes me wonder how it will
goof up the market when I won't be able to go back to analog as a back-up
when the DTV goes down.
"J. Mc Laughlin" wrote in message
.. .
... and some stations will be transmitting DTV on a third channel (not the
present analog nor the present DTV channel)

I have also found that a number of stations have applied for changes (so
far
they seem to be ERP changes) to what is contained in the eighth FCC report
of March 2008. One needs to go to the FCC site and enter call sign of
each
station to find the present information.

A surprise to me is that the coverage contour for analog TV is 64 dBu and
for DTV is 41 dBu - a difference of 23 db. However, the reductions of ERP
do not seem to be that large. Stations that are now a bit weak may be
unusable after Feb. 2009.

73, Mac N8TT


J. McLaughlin; Michigan, USA
Home:
----- Original Message -----
From: "Ed_G"
Newsgroups: rec.radio.amateur.antenna
Sent: Sunday, September 14, 2008 8:27 PM
Subject: Chart of HDTV freqs?


Jeff Liebermann wrote in
:

snip

What is happening is that many TV stations have been assigned a
channel on which to broadcast their new DTV signal prior to Feb. 17,
2009 while at the same time remain broadcasting their NTSC video on
their original channel. The chart shows these two channel designations
in the first two channel columns, and in the last column it shows what
channel the TV station will end up on when Feb. 17 comes around. As
indicated, some stations will be moving their DTV broadcast from the
temporary channel assignment back to their original NTSC channel
assignment, and some stations will remain broadcasting the DTV signal
on the temporary channel, which becomes their new permanent channel.



Ed K7AAT

Chart of HDTV freqs?
 

JB wrote:
Right now, the Analog channels that I get solid and noise free seem to be
subject to fades on their UHF DTV counterpart. Makes me wonder how it will
...
Ed K7AAT

Really? Something is quite wrong there!

Digital signals should require much less power to deliver the same
"quality" signal.

Indeed, digital is an upgrade to all existing systems. Listen to an
analog signal, then a digital signal--whether over hardwire (remember
the phone adds with the "dropping of a pin") or AM/SSB over RF ... can
you just imagine attempting an analog signal over a dial-up modem or
broadband? We would still be in the "internet stone-age!"

All that really does not take any thought at all ...

Regards,
JS

Chart of HDTV freqs?
 

Ed_G wrote:

...
What is happening is that many TV stations have been assigned a
channel on which to broadcast their new DTV signal prior to Feb. 17,
2009 while at the same time remain broadcasting their NTSC video on
their original channel. The chart shows these two channel designations
in the first two channel columns, and in the last column it shows what
channel the TV station will end up on when Feb. 17 comes around. As
indicated, some stations will be moving their DTV broadcast from the
temporary channel assignment back to their original NTSC channel
assignment, and some stations will remain broadcasting the DTV signal
on the temporary channel, which becomes their new permanent channel.



Ed K7AAT


Ed:

I am learning just what a "sticky wicket" this all is ... :-(

Thanks and,
regards,
JS

Chart of HDTV freqs?
 

Dave wrote:

...
Here is the official ruling. There are 2 tables. The first is as of
now, the 2nd is effective 17 February 2009.

http://sujan.hallikainen.org/FCC/FccRules/2008/73/622/


Dave:

I had not viewed this before your post, thanks!

Regards,
JS

Chart of HDTV freqs?
 

J. Mc Laughlin wrote:
... and some stations will be transmitting DTV on a third channel (not the
present analog nor the present DTV channel)

I have also found that a number of stations have applied for changes (so far
they seem to be ERP changes) to what is contained in the eighth FCC report
of March 2008. One needs to go to the FCC site and enter call sign of each
station to find the present information.

A surprise to me is that the coverage contour for analog TV is 64 dBu and
for DTV is 41 dBu - a difference of 23 db. However, the reductions of ERP
do not seem to be that large. Stations that are now a bit weak may be
unusable after Feb. 2009.

73, Mac N8TT

J:

Very good advice ...

Warm regards,
JS