Are there any websites that give the polarization for TV signals?

"david boyd" wrote in message
...
Are there any websites that give the polarization for TV signals?


Yes - which country?

Chris

david boyd wrote:
Are there any websites that give the polarization for TV signals?

Isn't it all horizontal for the USA?
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com

"Cecil Moore" wrote in message
...
david boyd wrote:
Are there any websites that give the polarization for TV signals?

Isn't it all horizontal for the USA?
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com


May well be, but it isn't in Europe. Are all gmail users in the USA then?

Chris

On Sat, 3 Oct 2009 15:24:27 +0100, "christofire"
wrote:

Are all gmail users in the USA then?

Our OP is halfway between Annapolis and D.C.

73's
Richard Clark, KB7QHC

"Richard Clark" wrote in message
...
On Sat, 3 Oct 2009 15:24:27 +0100, "christofire"
wrote:

Are all gmail users in the USA then?

Our OP is halfway between Annapolis and D.C.

73's
Richard Clark, KB7QHC


Did you know that from prior communication with the OP or is there some data
in his posting that gives a clue to that fact?

For the countries in ITU Region 2, the Americas, there will be FCC and other
documentation some of which may be available, and some of which may be
available free of charge; there is also some amount of comment about
polarisations like http://www.televisionbroadcast.com/article/67946.

For many of the countries covered by the Geneva 07 ITU-R agreement, the
'frequency allocation tables' include polarisation details and can be
accessed from the national administrations via the ERO web site
http://www.ero.dk/6EB60FD0-D703-42F6...oc?frames=no&;
they can generally be downloaded free of charge.

Chris

On Sat, 3 Oct 2009 21:38:58 +0100, "christofire"
wrote:

Did you know that from prior communication with the OP or is there some data
in his posting that gives a clue to that fact?

From his posting post in the header, just as yours is obscured.

73's
Richard Clark, KB7QHC

christofire wrote:
"Richard Clark" wrote in message
...
On Sat, 3 Oct 2009 15:24:27 +0100, "christofire"
wrote:

Are all gmail users in the USA then?
Our OP is halfway between Annapolis and D.C.

73's
Richard Clark, KB7QHC


Did you know that from prior communication with the OP or is there some data
in his posting that gives a clue to that fact?


Take a deep breath, and don't see insults or snubs behind every tree.

- Respectfully, 73 de Mike N3LI -

david boyd wrote:
Are there any websites that give the polarization for TV signals?

For the US, the FCC database tells the polarization (elliptical is
pretty common.. mostly horizontal, with some vertical component)

For instance, here's the stuff for KCBS-TV in the Los Angeles area:
http://fjallfoss.fcc.gov/cgi-bin/ws....cility_id=9628

Horizontal pol

But channel 11, KTTV
http://fjallfoss.fcc.gov/cgi-bin/ws....ility_id=22208
has Elliptical..


The search page is he
http://fjallfoss.fcc.gov/prod/cdbs/p...d/sta_sear.htm

On Oct 5, 2:34*pm, Jim Lux wrote:
david boyd wrote:
Are there any websites that give the polarization for TV signals?

For the US, the FCC database tells the polarization (elliptical is
pretty common.. mostly horizontal, with some vertical component)

For instance, here's the stuff for KCBS-TV in the Los Angeles area:http://fjallfoss.fcc.gov/cgi-bin/ws....cc/prod/eng_tv....

Horizontal pol

But channel 11, KTTVhttp://fjallfoss.fcc.gov/cgi-bin/ws.exe/prod/cdbs/pubacc/prod/eng_tv....
has Elliptical..

The search page is hehttp://fjallfoss.fcc.gov/prod/cdbs/p...d/sta_sear.htm

Concerning a TV station using elliptical polarization is there a
purposeful phase difference between the horizontal and vertical fields
or is it simply just dividing power between horizontal and verical
radiators with no concern as to phase relationship

Jimmie