Frequency of HDTV over-the-air broadcasts
 

I know many stations broadcast in HDTV over the air.

What FREQUENCIES to they use? What MHz do the DTV channels correspond to?

Frequency of HDTV over-the-air broadcasts
 

The same channels / frequencies as non-HDTV.

US TV stations have 2 channels assigned, one for Analog, one for Digital,
and Digital tuners "remap" the digital channel number to the analog channel
number to reduce confusion.

So, for example, a good Analog TV antenna is also a good Digital TV antenna,
because the frequencies are the same.

Currently, many stations who have analog TV channels in the VHF region have
their Digital channel in the UHF region, so often a UHF antenna is what you
want.


"Apropos" wrote in message
...
I know many stations broadcast in HDTV over the air.

What FREQUENCIES to they use? What MHz do the DTV channels correspond to?

Frequency of HDTV over-the-air broadcasts
 

On Jun 6, 9:32 pm, "Apropos"
wrote:
I know many stations broadcast in HDTV over the air.

What FREQUENCIES to they use? What MHz do the DTV channels
correspond to?

Same thing I posted in 'digital over the air tv'

The NAB table here shows the channel numbers by market. The 2nd last
column is the NTSC std def channel and the last column is the DTV
channel for that station.

http://www.nab.org/AM/ASPCode/DTVSta...TVStations.asp

The actual frequencies are here

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

BTW, Google shows this stuff up in short order

GG

Frequency of HDTV over-the-air broadcasts
 

"G-squared" wrote in message
ups.com...
On Jun 6, 9:32 pm, "Apropos"
wrote:
I know many stations broadcast in HDTV over the air.

What FREQUENCIES to they use? What MHz do the DTV channels
correspond to?

Same thing I posted in 'digital over the air tv'

The NAB table here shows the channel numbers by market. The 2nd last
column is the NTSC std def channel and the last column is the DTV
channel for that station.

http://www.nab.org/AM/ASPCode/DTVSta...TVStations.asp

The actual frequencies are here

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

However, on February 19, 2009 some of those digital stations
might revert back to their original analog frequency.
The last column on page
http://hraunfoss.fcc.gov/edocs_publi...-06-1082A2.pdf
shows where the stations will eventually end up.
Channels 52 thru 69 will be vacated.
And very few stations are reverting to channels 2 thru 6,
but many are returning to VHF channels 7-13.

W²

Frequency of HDTV over-the-air broadcasts
 

On Wed, 6 Jun 2007 22:14:04 -0700 Chuck McDevitt wrote:

| The same channels / frequencies as non-HDTV.
|
| US TV stations have 2 channels assigned, one for Analog, one for Digital,
| and Digital tuners "remap" the digital channel number to the analog channel
| number to reduce confusion.

It increases confusion for over the air viewers trying to make it work.


| So, for example, a good Analog TV antenna is also a good Digital TV antenna,
| because the frequencies are the same.

Except that in most cases the frequencies for the same station are different.


| Currently, many stations who have analog TV channels in the VHF region have
| their Digital channel in the UHF region, so often a UHF antenna is what you
| want.

So you need a UHF antenna to receive channel 2? See ... confusion.

--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
| first name lower case at ipal.net / |
|------------------------------------/-------------------------------------|

Frequency of HDTV over-the-air broadcasts
 

On Wed, 06 Jun 2007 22:29:46 -0700 G-squared wrote:

| The NAB table here shows the channel numbers by market. The 2nd last
| column is the NTSC std def channel and the last column is the DTV
| channel for that station.
|
| http://www.nab.org/AM/ASPCode/DTVSta...TVStations.asp

BEWARE! The NAB data shows the current digital test channels.
This is not appropriate for deciding what antenna to get. The
reason is because quite many stations will be changing their
channels on or before Feb 18, 2009. Some will be moving their
digital transmission to their original analog channel. Some
will keep their digital channel. And some will be getting an
entirely different channel (especially in cases where their
digital test channel is on 52 or higher because those channels
are going away so the FCC can turn the spectrum over to other
uses).

Call your local station and ask them what their "RF transmission"
or "digital election" channel will be for Feb 18, 2009. If it is
2-6, it is "low band VHF". 7-13 is "high band VHF". 14-36 and
38-51 are UHF. 37 and 52-83 are unavailable.

Or see these FCC documents on the channel election process:

http://hraunfoss.fcc.gov/edocs_publi...-05-1743A2.pdf
http://hraunfoss.fcc.gov/edocs_publi...-06-1082A2.pdf
http://hraunfoss.fcc.gov/edocs_publi...-06-1675A2.pdf

--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
| first name lower case at ipal.net / |
|------------------------------------/-------------------------------------|

Frequency of HDTV over-the-air broadcasts
 

Apropos ) wrote:
: I know many stations broadcast in HDTV over the air.

: What FREQUENCIES to they use? What MHz do the DTV channels correspond to?

If you enter your address in antennaweb.org you will find the HD channel
assignments to the old analog channels. You will find that most of them
are in the UHF region between Ch. 14 and 52 *the upper UHF channels will
be assigned to other services after the big analaog to digital switch).

Cass

Frequency of HDTV over-the-air broadcasts
 

On Jun 7, 12:32 am, "Apropos"
wrote:
I know many stations broadcast in HDTV over the air.

What FREQUENCIES to they use? What MHz do the DTV channels correspond to?


In my area, analog channel 7 is 174-180 MHz (see table below).
Digital channel 7 is really in UHF channel 42 which is 638-644 MHz.
In your area, the actual channel number may be different.


TV Frequency Allocation - All channels are 6MHz wide.
Groupes are 2-4, 5-6, 7-13, 14-83
Chan
02-04 - 54-72 MHz
72-76 gap. 75MHz is for aircraft navigation (LOM)
05-06 - 76- 88
07-13 - 174-216
14-20 - 470-512
21-40 - 512-632
Channel 37 (608-614 MHz is for radio astronomy)
41-60 - 632-752
61-69 - 752-806
70-83 - 806-890 (Never used)

For QAM (cable) television, the frequencys are as follows (all are
6MHz wide)
channel
02-13 Same as for over-the-air
14-22 120-174 Mhz in 6-Mhz bands (overlaps aircraft communications)
23-36 216-300 6mhz bandwidth - VHF super
37-61 300-450
62-86 450-600
87-94 600-648
95-99 90-120 FM, A/C navigation
100-116 648-750
117-141 750-900
142-157 900-996
158 996-1002