How to install your new antenna [Instructions]

On Monday, May 3rd, 2010 at 19:56:38h +0100, Adrian C wrote:

http://urbanlegends.about.com/library/bl_anti_bush_label.htm

Thanks for the link -- most interesting.

On 02/05/2010 22:16, Graham. wrote:
wrote in message ...

There are quite a few odd things in there but this one caught my eye.

"4. Avoid using an antenna mounted amplifier in urban areas"


Put simply, in an _urban area_ the device isn't bling enough.

In order to avoid upsetting the sensibilities of the controlling
wan-doody hip-hop massive, ye just have to ensure roof mounted trophies
show a wholesome degree of glitzy opulence.

A weedy little antenna with an amplifier is a sign of weakness and will
ensure that ya property and peeps within will be dissed and abused. It's
more manly (and anyway recommended on daytime TV shopping channels
compulsory watched by bling impressed females) to go for the bigger
DAT45, gold plated if ye can. That will also gain respect with the hood,
and ye will enjoy better gang rep....

cough cough



Excuse me, somthing is up with this joint I'm puffing ...

--
Not Me

On Monday, May 3rd, 2010 at 20:22:29h +0100, Adrian C wrote:

Put simply, in an _urban area_ the device isn't bling enough.

Maybe not. But how about this one?

http://www.kathrein-scala.COM/catalog/PR-TV.pdf

I would be most interested to know the proprietor of Wright's Aerials
opinion on this type of design and its performance compared to the
Yagi-Uda.

In message , J G Miller
writes
On Monday, May 3rd, 2010 at 20:22:29h +0100, Adrian C wrote:

Put simply, in an _urban area_ the device isn't bling enough.

Maybe not. But how about this one?

http://www.kathrein-scala.COM/catalog/PR-TV.pdf

I would be most interested to know the proprietor of Wright's Aerials
opinion on this type of design and its performance compared to the
Yagi-Uda.

If I'm not mis-reading the information, that's a single-channel aerial,
available for your specified UHF channel. Not much good for
multi-channel TV use.
--
Ian

In article , J G Miller
scribeth thus
On Monday, May 3rd, 2010 at 20:22:29h +0100, Adrian C wrote:

Put simply, in an _urban area_ the device isn't bling enough.

Maybe not. But how about this one?

http://www.kathrein-scala.COM/catalog/PR-TV.pdf

I would be most interested to know the proprietor of Wright's Aerials
opinion on this type of design and its performance compared to the
Yagi-Uda.

Respectable make that if it is the same as the German company and seeing
that they make most of the transmitter aerials in the UK.!..
--
Tony Sayer

On May 3, 9:25*pm, J G Miller wrote:
On Monday, May 3rd, 2010 at 20:22:29h +0100, Adrian C wrote:
Put simply, in an _urban area_ the device isn't bling enough.

Maybe not. *But how about this one?

* * http://www.kathrein-scala.COM/catalog/PR-TV.pdf

I would be most interested to know the proprietor of Wright's Aerials
opinion on this type of design and its performance compared to the
Yagi-Uda.

The parabola doesn't really seem to be enough wavelengths across to
function efficiently.

The aerial doesn't seem to do particularly well regarding the mV/kilo
test (see
http://www.wrightsaerials.tv/ymbj/mv-per-kilo.shtml ).
The quoted gain figures are easily achievable by narrowband UHF yagis,
which would have less weight and windage.

Since the parabola is inherently wideband I wonder if a version is
produced with a wideband dipole, for RX use in places where this is
required.

Note that there is a reflector in front of the dipole to prevent
direct reception, which might have a destructive phase relationship
with the reflected signal.

See also
http://www.wrightsaerials.tv/aerialp...ngus/017.shtml

I have been fascinated by the idea of using parabolas for UHF ever
since UHF was invented. When we went to the maternity hospital for the
birth of out first child (now 35) I anticipated a long wait and took a
notebook and a textbook, and set about planning the construction of a
monster. However the child was born very rapidly, and thereafter was
such a drain on time and resounces that I soon had to abandon the
project. Still in my loft to this day are some curved members. the
start of the prototype.

Bill

wrote:
On May 3, 9:25 pm, J G Miller wrote:
On Monday, May 3rd, 2010 at 20:22:29h +0100, Adrian C wrote:
Put simply, in an _urban area_ the device isn't bling enough.
Maybe not. But how about this one?

http://www.kathrein-scala.COM/catalog/PR-TV.pdf

I would be most interested to know the proprietor of Wright's Aerials
opinion on this type of design and its performance compared to the
Yagi-Uda.

The parabola doesn't really seem to be enough wavelengths across to
function efficiently.

The aerial doesn't seem to do particularly well regarding the mV/kilo
test (see
http://www.wrightsaerials.tv/ymbj/mv-per-kilo.shtml ).
The quoted gain figures are easily achievable by narrowband UHF yagis,
which would have less weight and windage.

Since the parabola is inherently wideband I wonder if a version is
produced with a wideband dipole, for RX use in places where this is
required.

Note that there is a reflector in front of the dipole to prevent
direct reception, which might have a destructive phase relationship
with the reflected signal.

See also
http://www.wrightsaerials.tv/aerialp...ngus/017.shtml

I have been fascinated by the idea of using parabolas for UHF ever
since UHF was invented. When we went to the maternity hospital for the
birth of out first child (now 35) I anticipated a long wait and took a
notebook and a textbook, and set about planning the construction of a
monster. However the child was born very rapidly, and thereafter was
such a drain on time and resounces that I soon had to abandon the
project. Still in my loft to this day are some curved members. the
start of the prototype.


If you want one to play with, there might be one going spare in Belgium
now that they use satellite feeds for UK channels on the cable network.

One company (used to be called TeleWest) used a water tower in the Maria
Hendrikapark on the outskirts of Ostend as a receiving site. As well as
conventional UHF arrays pointing across the North Sea to Dover, there
was also a yagi pointing at a mesh parabolic dish.

Reception from Dover was usually excellent - it certainly was on all the
occasions that I witnessed it over the years - but, under certain
atmospheric conditions, apparently, there was ghosting which they
believed was caused by a reflection off a rock headland on the French
coast. The parabolic array was an experiment to cure the problem (though
I've no idea what difference, if any, there was.)

--

Terry

In article
s.com, scribeth thus
On May 3, 9:25*pm, J G Miller wrote:
On Monday, May 3rd, 2010 at 20:22:29h +0100, Adrian C wrote:
Put simply, in an _urban area_ the device isn't bling enough.

Maybe not. *But how about this one?

* * http://www.kathrein-scala.COM/catalog/PR-TV.pdf

I would be most interested to know the proprietor of Wright's Aerials
opinion on this type of design and its performance compared to the
Yagi-Uda.

The parabola doesn't really seem to be enough wavelengths across to
function efficiently.

Why might that be?..


The aerial doesn't seem to do particularly well regarding the mV/kilo
test (see

Never seen that spec quoted before;?..

http://www.wrightsaerials.tv/ymbj/mv-per-kilo.shtml ).
The quoted gain figures are easily achievable by narrowband UHF yagis,
which would have less weight and windage.

Might it be something to do with front back ratio?..

--
Tony Sayer

We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "
saying something like:

I have been fascinated by the idea of using parabolas for UHF ever
since UHF was invented. When we went to the maternity hospital for the
birth of out first child (now 35) I anticipated a long wait and took a
notebook and a textbook, and set about planning the construction of a
monster. However the child was born very rapidly, and thereafter was
such a drain on time and resounces that I soon had to abandon the
project. Still in my loft to this day are some curved members. the
start of the prototype.

Not unknown for old sat dishes to be used as wi-fi and 3G antennas.

We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember Grimly Curmudgeon
saying something like:

We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "
saying something like:

I have been fascinated by the idea of using parabolas for UHF ever
since UHF was invented. When we went to the maternity hospital for the
birth of out first child (now 35) I anticipated a long wait and took a
notebook and a textbook, and set about planning the construction of a
monster. However the child was born very rapidly, and thereafter was
such a drain on time and resounces that I soon had to abandon the
project. Still in my loft to this day are some curved members. the
start of the prototype.

Not unknown for old sat dishes to be used as wi-fi and 3G antennas.

To follow up...
UHF and VHF on an old 1.8m dish
http://www.dtvforum.info/index.php?showtopic=84979
The pics from that post...
http://i46.tinypic.com/scwd1h.jpg
http://i50.tinypic.com/necpjl.jpg

This has got my juices flowing and I've stuck an old 1m MMDS dish up in
my attic space, pointing out through the roof structure with a folded
dipole cut for ~580MHz at the focal point. My reasoning is that the gain
of the dish will compensate for the roof thickness. Last night it was
providing a cracking signal to my PC telly card and today I intend to
connect it to the digitelly and see what I can pull in.
This avoids ****ing around with poles and external antennas on top of
them.