[opendtv] Re: Why outdoor antennas don't always work well
- From: "Alan Roberts" <roberts.mugswell@xxxxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 10 Jan 2006 21:18:36 -0000
Vertical and horizontal polarisations are used. Mostly horizontal for the
main stations, and some vertical for the fillers so that they conflict less.
Alan
----- Original Message -----
From: "Allen Le Roy Limberg" <allimberg@xxxxxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx>
Sent: Monday, January 09, 2006 10:46 PM
Subject: [opendtv] Re: Why outdoor antennas don't always work well
> Vertical polarization is used in UK TV. Fewer pigeon droppings on the
roof,
> old boy. Also, they're less likely to shake the antenna when they move
> about on the roost.
>
> Allen
> ----- Original Message -----
> From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
> To: <opendtv@xxxxxxxxxxxxx>
> Sent: Monday, January 09, 2006 3:11 PM
> Subject: [opendtv] Re: Why outdoor antennas don't always work well
>
>
> > Jeroen Stessen wrote:
> >
> > > Hello,
> > > Sometimes you hear that the success rate of DVB-T
> > > reception on outdoor antenna's is not 100% either.
> > > This web-site might explain why:
> > >
> > > http://www.wrightsaerials.tv/roguesgalleryview.html
> > >
> > > This is what you get when amateurs pose as
> > > professionals........
> >
> > The sad fact is, "professional" only means the guy
> > does a job for a living. It doesn't mean he has a
> > slightest clue of the underlying physics, be that
> > the mechanical or electromagnetic principles involved
> > in his chosen profession. Examples of lack of
> > appreciation of both types of physics were evident.
> >
> > I especially liked the vertically-oriented circular
> > (omni) folded dipole. What a concept!
> >
> > It appears that many TV towers in the UK use vertical
> > polarization? Or maybe the pictures were taken in
> > mountainous regions?
> >
> > Hey Jeroen, are you spreading FUD about OTA radio and
> > TV? You've sent horror photos from the transmitting
> > tower and the receiving antenna ends of the link.
> > Next thing you'll be doing is sending horror stories
> > about the effects of EM radiation from TV and radio
> > towers on all living beings inbetween!
> >
> > Bert
> >
> >
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>
>
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