| Author |
Message |
davidrobinson@postmaster.
Guest
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 Posted:
Mon Jan 17, 2005 10:11 pm Post subject:
Is this an FM aerial? Where did it come from? |
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Appologies for the cross posting, but despite this being OT for three
of these groups, these are the groups where I know people can answer
this question!
Right, sad aerial spotting time...
Is this an FM aerial?
http://www.david.robinson.org/pics/aerial1.jpg
http://www.david.robinson.org/pics/aerial2.jpg
I've seen one like this (but about twice as long, hence twice as many
elements!!!) on top of a house in a village somewhere, but didn't have
my camera with me.
The example I've photographed is on the top of a hi-fi shop in Hitchin,
Herts, UK, but the only aerial that _they_ know is on their roof is "a
high gain digital TV aerial" (which this probably, unless DTT is still
on VHF in Hitchin!).
So what is this aerial, and where was it bought from? Can they still be
bought? What is the advantage, if any, over the standard folded dipole
and several elements which make up most directional FM aerials?
Cheers,
David.
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John Porcella
Guest
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| Posted:
Mon Jan 17, 2005 10:11 pm Post subject:
Re: Is this an FM aerial? Where did it come from? |
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<davidrobinson@postmaster.co.uk> wrote in message
news:1105981903.455111.263870@c13g2000cwb.googlegroups.com...
| Quote: | Appologies for the cross posting, but despite this being OT for three
of these groups, these are the groups where I know people can answer
this question!
Right, sad aerial spotting time...
Is this an FM aerial?
http://www.david.robinson.org/pics/aerial1.jpg
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It looks like a TV aerial to me, and what an ugly one at that!
--
MESSAGE ENDS.
John Porcella |
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Andereida
Guest
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| Posted:
Mon Jan 17, 2005 10:11 pm Post subject:
Re: Is this an FM aerial? Where did it come from? |
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Malcolm Stewart wrote:
| Quote: | snip
Will be using it later this evening when R3 is broadcasting Das Rheingold.
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Danke schöne for the reminder, Malcolm. Nearly missed it!!
Andereida |
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Mike Gilmour
Guest
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| Posted:
Mon Jan 17, 2005 10:43 pm Post subject:
Re: Is this an FM aerial? Where did it come from? |
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<davidrobinson@postmaster.co.uk> wrote in message
news:1105981903.455111.263870@c13g2000cwb.googlegroups.com...
| Quote: | Appologies for the cross posting, but despite this being OT for three
of these groups, these are the groups where I know people can answer
this question!
Right, sad aerial spotting time...
Is this an FM aerial?
http://www.david.robinson.org/pics/aerial1.jpg
http://www.david.robinson.org/pics/aerial2.jpg
I've seen one like this (but about twice as long, hence twice as many
elements!!!) on top of a house in a village somewhere, but didn't have
my camera with me.
The example I've photographed is on the top of a hi-fi shop in Hitchin,
Herts, UK, but the only aerial that _they_ know is on their roof is "a
high gain digital TV aerial" (which this probably, unless DTT is still
on VHF in Hitchin!).
So what is this aerial, and where was it bought from? Can they still be
bought? What is the advantage, if any, over the standard folded dipole
and several elements which make up most directional FM aerials?
Cheers,
David.
|
For broadcast FM, I believe its a Galaxie Model G.17 with 10 reflectors,
cicular dipole and six directors. 74" long with a gain of 15.9 dB and 45 deg
acceptance angle. I have the G.20 above my roof which is 30" longer than the
G17 gives extra 2dB extra gain and 28 degree acceptance angle. Sourced mine
from Ron Smith Luton Beds UK. The reason for mine is a) I'm in the Scottish
Highlands b) it feeds a good tuner Magnum Dynalab 'Etude'. The advantage
for me is mainly gain & a good clean signal.
Hope this helps,
Mike |
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T
Guest
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| Posted:
Mon Jan 17, 2005 11:01 pm Post subject:
Re: Is this an FM aerial? Where did it come from? |
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Mike Gilmour wrote:
| Quote: | For broadcast FM, I believe its a Galaxie Model G.17 with 10 reflectors,
cicular dipole and six directors. 74" long with a gain of 15.9 dB and 45 deg
acceptance angle.
snip |
I can tell all this by looking at it....
Man, my hat is off Mike.
TBerk |
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Malcolm Stewart
Guest
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| Posted:
Mon Jan 17, 2005 11:01 pm Post subject:
Re: Is this an FM aerial? Where did it come from? |
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<davidrobinson@postmaster.co.uk> wrote in message
news:1105981903.455111.263870@c13g2000cwb.googlegroups.com...
Looks just like mine. It's an FM aerial and I bought it from R Smith in
Luton some years ago. (and you'll see one on my previous house in Rowstock
Lane, Colney Heath.) Needs a strong mast when the wind blows - 2" steel
does the job.
Will be using it later this evening when R3 is broadcasting Das Rheingold.
--
M Stewart
Milton Keynes, UK
http://www.megalith.freeserve.co.uk/oddimage.htm |
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Marky P
Guest
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| Posted:
Mon Jan 17, 2005 11:19 pm Post subject:
Re: Is this an FM aerial? Where did it come from? |
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On Mon, 17 Jan 2005 18:06:11 +0000 (UTC), "John Porcella"
<bronson69@btinternet.com> wrote:
| Quote: |
davidrobinson@postmaster.co.uk> wrote in message
news:1105981903.455111.263870@c13g2000cwb.googlegroups.com...
Appologies for the cross posting, but despite this being OT for three
of these groups, these are the groups where I know people can answer
this question!
Right, sad aerial spotting time...
Is this an FM aerial?
http://www.david.robinson.org/pics/aerial1.jpg
It looks like a TV aerial to me, and what an ugly one at that!
|
Not exactly pretty beasts, are they? But it's definitely a Galaxie
G17 FM aerial from Ron Smith of Luton. I had the G26 which was the
biggest one he produced on a regular basis. G29 & G32 were available
by special order. Due to cracks appearing in my gable wall, the whole
thing eventually had to come down. I now have a single dipole!
Marky P. |
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Marky P
Guest
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| Posted:
Mon Jan 17, 2005 11:22 pm Post subject:
Re: Is this an FM aerial? Where did it come from? |
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On Mon, 17 Jan 2005 17:43:31 -0000, "Mike Gilmour"
<mike@tfjazz.freeserve.co.uk> wrote:
| Quote: |
davidrobinson@postmaster.co.uk> wrote in message
news:1105981903.455111.263870@c13g2000cwb.googlegroups.com...
Appologies for the cross posting, but despite this being OT for three
of these groups, these are the groups where I know people can answer
this question!
Right, sad aerial spotting time...
Is this an FM aerial?
http://www.david.robinson.org/pics/aerial1.jpg
http://www.david.robinson.org/pics/aerial2.jpg
I've seen one like this (but about twice as long, hence twice as many
elements!!!) on top of a house in a village somewhere, but didn't have
my camera with me.
The example I've photographed is on the top of a hi-fi shop in Hitchin,
Herts, UK, but the only aerial that _they_ know is on their roof is "a
high gain digital TV aerial" (which this probably, unless DTT is still
on VHF in Hitchin!).
So what is this aerial, and where was it bought from? Can they still be
bought? What is the advantage, if any, over the standard folded dipole
and several elements which make up most directional FM aerials?
Cheers,
David.
For broadcast FM, I believe its a Galaxie Model G.17 with 10 reflectors,
cicular dipole and six directors. 74" long with a gain of 15.9 dB and 45 deg
acceptance angle. I have the G.20 above my roof which is 30" longer than the
G17 gives extra 2dB extra gain and 28 degree acceptance angle. Sourced mine
from Ron Smith Luton Beds UK. The reason for mine is a) I'm in the Scottish
Highlands b) it feeds a good tuner Magnum Dynalab 'Etude'. The advantage
for me is mainly gain & a good clean signal.
Hope this helps,
Mike
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Would that shop be David Orton?
Marky P. |
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tony sayer
Guest
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| Posted:
Mon Jan 17, 2005 11:58 pm Post subject:
Re: Is this an FM aerial? Where did it come from? |
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In article <1105981903.455111.263870@c13g2000cwb.googlegroups.com>,
davidrobinson@postmaster.co.uk <davidrobinson@postmaster.co.uk> writes
| Quote: | Appologies for the cross posting, but despite this being OT for three
of these groups, these are the groups where I know people can answer
this question!
Right, sad aerial spotting time...
Is this an FM aerial?
http://www.david.robinson.org/pics/aerial1.jpg
http://www.david.robinson.org/pics/aerial2.jpg
I've seen one like this (but about twice as long, hence twice as many
elements!!!) on top of a house in a village somewhere, but didn't have
my camera with me.
The example I've photographed is on the top of a hi-fi shop in Hitchin,
Herts, UK, but the only aerial that _they_ know is on their roof is "a
high gain digital TV aerial" (which this probably, unless DTT is still
on VHF in Hitchin!).
So what is this aerial, and where was it bought from? Can they still be
bought? What is the advantage, if any, over the standard folded dipole
and several elements which make up most directional FM aerials?
Cheers,
David.
|
Thats one of Ron Smiths circular polarised jobbies.
Use to have one but I found a conventional Yagi worked just as well if
not a tad better, but this was a few years ago.
The windload on one of those is serious stuff;)...
And here they are in all their glory!, though some of their stuff looks
like it might require planning permission;)
http://anas.worldonline.es/ronsmith/main.htm
--
Tony Sayer |
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DAB sounds worse than FM
Guest
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David W.E. Roberts
Guest
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| Posted:
Tue Jan 18, 2005 12:16 am Post subject:
Re: Is this an FM aerial? Where did it come from? |
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"tony sayer" <tony@bancom.co.uk> wrote in message
news:YM91dwIjrA7BFwE5@bancom.co.uk...
| Quote: | In article <1105981903.455111.263870@c13g2000cwb.googlegroups.com>,
davidrobinson@postmaster.co.uk <davidrobinson@postmaster.co.uk> writes
snip
Use to have one but I found a conventional Yagi worked just as well if
not a tad better, but this was a few years ago.
The windload on one of those is serious stuff;)...
And here they are in all their glory!, though some of their stuff looks
like it might require planning permission;)
http://anas.worldonline.es/ronsmith/main.htm
--
Tony Sayer
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So no Wideband or Group E then :-( |
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Mike Gilmour
Guest
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| Posted:
Tue Jan 18, 2005 12:21 am Post subject:
Re: Is this an FM aerial? Where did it come from? |
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"T" <tberk@sbcglobal.net> wrote in message
news:w3TGd.2703$8Z1.862@newssvr14.news.prodigy.com...
| Quote: | Mike Gilmour wrote:
For broadcast FM, I believe its a Galaxie Model G.17 with 10
reflectors, cicular dipole and six directors. 74" long with a gain of
15.9 dB and 45 deg acceptance angle.
snip
I can tell all this by looking at it....
Man, my hat is off Mike.
TBerk
|
Nah, details were written down on the back of an old envelope after I
phoned Ron and I'd filed it with his bill. Had this aerial for about 15
years on a chimney clamped 4m pole and its stood up to gales so far..
Mike. |
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Mike Gilmour
Guest
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| Posted:
Tue Jan 18, 2005 12:26 am Post subject:
Re: Is this an FM aerial? Where did it come from? |
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"tony sayer" <tony@bancom.co.uk> wrote in message
news:YM91dwIjrA7BFwE5@bancom.co.uk...
| Quote: | In article <1105981903.455111.263870@c13g2000cwb.googlegroups.com>,
davidrobinson@postmaster.co.uk <davidrobinson@postmaster.co.uk> writes
[clip[
Thats one of Ron Smiths circular polarised jobbies.
Use to have one but I found a conventional Yagi worked just as well if
not a tad better, but this was a few years ago.
The windload on one of those is serious stuff;)...
|
The G17 has a windload of 50lbs at 100mph but the G23 gets quite serious at
72lbs
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Marky P
Guest
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| Posted:
Tue Jan 18, 2005 4:17 am Post subject:
Re: Is this an FM aerial? Where did it come from? |
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On Mon, 17 Jan 2005 19:12:36 GMT, "DAB sounds worse than FM"
<dab_is@low.quality> wrote:
When I bought my G26 back in 1991, the price was £180. And that was
just the aerial. They came & put it up on a 20 foot mast with a
rotator.
Marky P. |
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Neil
Guest
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| Posted:
Tue Jan 18, 2005 4:27 am Post subject:
Re: Is this an FM aerial? Where did it come from? |
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I used to own a Galaxie 17, later upgraded to a 23. Unless Ron Smith has
re-designed these since 1997, I must say their performance above 104 MHz is
for one of a better word 'sh*te'. Granted, when he designed them the FM band
only extended to 105 MHz but these days the 105-108 sub-band is heavily
populated with stations and the performance is pretty poor with a 4-6dB roll
off between 104 and 106 MHz.
Between 90 and 101 MHz, yep, great antennas but the gain across the band
isn't broad enough for my liking. As for the 'reducing multipath' bit which
he quoted in his catalogue at the time, well I never experienced more
multipath on strong stations (eg Holme Moss) than when using my Galaxie.
Like previously mentioned by someone else, windloading is also a problem so
a sturdy heavy duty rotator is required.
I'm using a Triax FM8S these days, good gain between 90 and 107 with about a
1-2dB rolloff at the edges. Does anyone have much experience with Ron
Smith's UHF Yagis?
Interestingly, a friend of mine in the North Midlands has just ordered a
Winegard FM antenna from the US, the gain is pretty impressive and flat
across Band II as well. Anyone had any experiences with one of these?
http://www.lashen.com/vendors/winegard/pdf/hd6065p.pdf
--
Neil
(Manchester, UK)
"Mike Gilmour" <mike@tfjazz.freeserve.co.uk> wrote in message
news:T9idnUIHIO7pjHHcRVn-iQ@nildram.net...
| Quote: |
"tony sayer" <tony@bancom.co.uk> wrote in message
news:YM91dwIjrA7BFwE5@bancom.co.uk...
In article <1105981903.455111.263870@c13g2000cwb.googlegroups.com>,
davidrobinson@postmaster.co.uk <davidrobinson@postmaster.co.uk> writes
[clip[
Thats one of Ron Smiths circular polarised jobbies.
Use to have one but I found a conventional Yagi worked just as well if
not a tad better, but this was a few years ago.
The windload on one of those is serious stuff;)...
The G17 has a windload of 50lbs at 100mph but the G23 gets quite serious
at 72lbs
And here they are in all their glory!, though some of their stuff looks
like it might require planning permission;)
http://anas.worldonline.es/ronsmith/main.htm
--
Tony Sayer
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