Thierry - wrote:

"harrogate2" wrote in message
...

"Cecil Moore" wrote in message
...
Chris wrote:
?

Ariceibo?
--
73, Cecil http://www.qsl.net/w5dxp


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As a single antenna, probably.


Arecibo remains the largest fixed antenna.
The largest steerable is DSN... 70 m

Jodrell Bank is 250 foot or 76.2m.

--

Peter

On Sat, 21 May 2005 19:47:24 +0100, (Peter
Hayes) wrote:

Thierry - wrote:

"harrogate2" wrote in message
...

"Cecil Moore" wrote in message
...
Chris wrote:
?

Ariceibo?
--
73, Cecil http://www.qsl.net/w5dxp


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As a single antenna, probably.


Arecibo remains the largest fixed antenna.
The largest steerable is DSN... 70 m

Jodrell Bank is 250 foot or 76.2m.


Arecibo is steerable.

The last time I was there, the U. of Manchester's big antenna at Jodrell
Bank was "steerable." Perhaps you are thinking of another antenna.

Only the feed at Arecibo can be moved.
73 Mac N8TT

--
J. Mc Laughlin; Michigan U.S.A.
Home:
"Wes Stewart" wrote in message
...
On Sat, 21 May 2005 19:47:24

snip

As a single antenna, probably.


Arecibo remains the largest fixed antenna.
The largest steerable is DSN... 70 m

Jodrell Bank is 250 foot or 76.2m.


Arecibo is steerable.

On Sat, 21 May 2005 16:36:54 -0400, "J. Mc Laughlin"
wrote:

The last time I was there, the U. of Manchester's big antenna at Jodrell
Bank was "steerable." Perhaps you are thinking of another antenna.

No.

Only the feed at Arecibo can be moved.

Uh huh. But that moves the beam around.

A lot of satellite receivers use fixed reflectors with multiple feeds
to look at different satellites.

A lot of search and fire control radars also use "fixed" planar
antennas with electronic beam steering.

I submit that all of these are "steerable."

Regards,

Wes

Dear Mr. Wes Stewart:
I do not see anything in your last message that I disagree with.

I have seen the U. of Manchester's antenna move so as to move its beam.

73, Mac N8TT

--
J. Mc Laughlin; Michigan U.S.A.
Home:
"Wes Stewart" wrote in message
...
On Sat, 21 May 2005 16:36:54 -0400, "J. Mc Laughlin"
wrote:

The last time I was there, the U. of Manchester's big antenna at Jodrell
Bank was "steerable." Perhaps you are thinking of another antenna.

No.

Only the feed at Arecibo can be moved.

Uh huh. But that moves the beam around.

A lot of satellite receivers use fixed reflectors with multiple feeds
to look at different satellites.

A lot of search and fire control radars also use "fixed" planar
antennas with electronic beam steering.

I submit that all of these are "steerable."

Regards,

Wes

In article ,
Wes Stewart wrote:

On Sat, 21 May 2005 19:47:24 +0100, (Peter
Hayes) wrote:

Thierry - wrote:

"harrogate2" wrote in message
...

"Cecil Moore" wrote in message
...
Chris wrote:
?

Ariceibo?
--
73, Cecil http://www.qsl.net/w5dxp


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News==----
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100,000 Newsgroups
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=---


As a single antenna, probably.


Arecibo remains the largest fixed antenna.
The largest steerable is DSN... 70 m

Jodrell Bank is 250 foot or 76.2m.


Arecibo is steerable.

Actually it is slightly steerable...just over about 15 degrees of
vertical, and the antenna gain drops off, quickly as the the angle
leaves vertical. This is due to the movement of the Feed Horn
Assembly offcenter on its Trolly Wire Supports.


Me