TV aerial question

I've noticed a few properties round here with two aerials mounted one on
top of the other , with both pointed in the same direction, one parellel to
the ground and the other pointing upwards by a few degrees.

Whats the benefit of doing this?

For information we don't get digital round here very well(if at all) being
at the limits of the oxford, sandy heath and crystal palace transmitters.
The aerials in question are pointing at cp.

Steve

"Steve" wrote in message
...
I've noticed a few properties round here with two aerials mounted one on
top of the other , with both pointed in the same direction, one parellel
to
the ground and the other pointing upwards by a few degrees.

Whats the benefit of doing this?

For information we don't get digital round here very well(if at all) being
at the limits of the oxford, sandy heath and crystal palace transmitters.
The aerials in question are pointing at cp.

Steve

My guess is that the "upwards" ones are simply poorly fitted. What sort of
aerials are they? Contract (with a nasty "flat sheet" reflector), slightly
better, or full block "X whoppers"? If the latter, do the cross pieces get
closer together as you look towards the reflector? I ask the last question
because it's common for cowboys to fix "Digital" antenna these days.
There's no such thing as a "digital" antenna, rather they're wideband which
are totally wrong for CP which is, and is only ever planned to be, group A.

OTOH, you might have found the only installer in those parts who knows how
to wire multiple aerials together like Bill Wright to pull weak signals out
of the ether - but the odds are against it!

Paul DS

"Steve" wrote in message
...
I've noticed a few properties round here with two aerials mounted one on
top of the other , with both pointed in the same direction, one parellel
to
the ground and the other pointing upwards by a few degrees.



Do you mean something like this?

http://www.tvaerials.com/product.aspx?productid=29

Steve

Do you mean something like this?
http://www.tvaerials.com/product.aspx?productid=29

I asked about those here a while ago - I dare say Bill will be along
shortly to explain it :-)

I think as well as allegedly better gain that they reduce ghosting. I saw a
rash of them installed in an area where ghosting caused by blockes of flats
in near line of site of Crystal Palace was common. Sort of like a phased
array, giving a narrower horizontal sensisitivy and a stonger vertical one.

The above could all be rubbish of course :-)

Al.

On 29 Oct 2007 11:52:09 GMT, Al wrote:

Do you mean something like this?
http://www.tvaerials.com/product.aspx?productid=29

I asked about those here a while ago - I dare say Bill will be along
shortly to explain it :-)

I think as well as allegedly better gain that they reduce ghosting. I saw a
rash of them installed in an area where ghosting caused by blockes of flats
in near line of site of Crystal Palace was common. Sort of like a phased
array, giving a narrower horizontal sensisitivy and a stonger vertical one.

The above could all be rubbish of course :-)

Al.
Bill hates those Televes aerials. I had one at my old house (and it's
still there) and it performed very well. They are ugly, though, and
the plastic parts are very brittle. Also, they often arrive with a
couple of bent elements, and any attempt to straighten them will lead
to them snapping clean off.

Marky P.

"Marky P" wrote in message
...
On 29 Oct 2007 11:52:09 GMT, Al wrote:

Do you mean something like this?
http://www.tvaerials.com/product.aspx?productid=29

I asked about those here a while ago - I dare say Bill will be along
shortly to explain it :-)

I think as well as allegedly better gain that they reduce ghosting. I saw
a
rash of them installed in an area where ghosting caused by blockes of
flats
in near line of site of Crystal Palace was common. Sort of like a phased
array, giving a narrower horizontal sensisitivy and a stonger vertical
one.

The above could all be rubbish of course :-)

Al.
Bill hates those Televes aerials. I had one at my old house (and it's
still there) and it performed very well. They are ugly, though, and
the plastic parts are very brittle. Also, they often arrive with a
couple of bent elements, and any attempt to straighten them will lead
to them snapping clean off.

But a lollipop stick and a squirt of 'No Nails' soon put that one right eh
Marky:0)
Seriously though one would think that they could do a lot better than a
plastic bag considering the price!




http://www.tvaerials.com/product.aspx?productid=29
Marky P.

....snip...

Also, they often arrive with a
couple of bent elements, and any attempt to straighten them will lead
to them snapping clean off.

Refuse delivery and make them send you one that is undamaged, at their own
expense of course.

Paul DS.

On Mon, 29 Oct 2007 15:38:07 GMT, "Ivan"
wrote:


"Marky P" wrote in message
.. .
On 29 Oct 2007 11:52:09 GMT, Al wrote:

Do you mean something like this?
http://www.tvaerials.com/product.aspx?productid=29

I asked about those here a while ago - I dare say Bill will be along
shortly to explain it :-)

I think as well as allegedly better gain that they reduce ghosting. I saw
a
rash of them installed in an area where ghosting caused by blockes of
flats
in near line of site of Crystal Palace was common. Sort of like a phased
array, giving a narrower horizontal sensisitivy and a stonger vertical
one.

The above could all be rubbish of course :-)

Al.
Bill hates those Televes aerials. I had one at my old house (and it's
still there) and it performed very well. They are ugly, though, and
the plastic parts are very brittle. Also, they often arrive with a
couple of bent elements, and any attempt to straighten them will lead
to them snapping clean off.

But a lollipop stick and a squirt of 'No Nails' soon put that one right eh
Marky:0)

Actually, you're not far off. As the elements were tubular, I used
small wooden dowels and a spot of super glue and shoved 'em back on.
Admitedly, one did fall off after a week.

Seriously though one would think that they could do a lot better than a
plastic bag considering the price!




http://www.tvaerials.com/product.aspx?productid=29
Marky P.

"Marky P" wrote in message
...
On Mon, 29 Oct 2007 15:38:07 GMT, "Ivan"
wrote:


"Marky P" wrote in message
. ..
On 29 Oct 2007 11:52:09 GMT, Al wrote:

Do you mean something like this?
http://www.tvaerials.com/product.aspx?productid=29

I asked about those here a while ago - I dare say Bill will be along
shortly to explain it :-)

I think as well as allegedly better gain that they reduce ghosting. I
saw
a
rash of them installed in an area where ghosting caused by blockes of
flats
in near line of site of Crystal Palace was common. Sort of like a phased
array, giving a narrower horizontal sensisitivy and a stonger vertical
one.

The above could all be rubbish of course :-)

Al.
Bill hates those Televes aerials. I had one at my old house (and it's
still there) and it performed very well. They are ugly, though, and
the plastic parts are very brittle. Also, they often arrive with a
couple of bent elements, and any attempt to straighten them will lead
to them snapping clean off.

But a lollipop stick and a squirt of 'No Nails' soon put that one right eh
Marky:0)

Actually, you're not far off. As the elements were tubular, I used
small wooden dowels and a spot of super glue and shoved 'em back on.
Admitedly, one did fall off after a week.


Know what you mean squire.. Wink wink, nudge nudge!

Seriously though one would think that they could do a lot better than a
plastic bag considering the price!




http://www.tvaerials.com/product.aspx?productid=29
Marky P.

On Mon, 29 Oct 2007 10:45:36 GMT, Ivan wrote:

"Steve" wrote in message
...
[6 quoted lines suppressed]

Do you mean something like this?

http://www.tvaerials.com/product.aspx?productid=29

[1 quoted line suppressed]

Hmmm, I'll need to have a better look now. I don't think it was like that,
it looked more like just two aerials above each other. I'll see if I can
get a photo.

Steve