UK [DAB] radio disturbance caused by satellite network bug

I should have added this
https://en.wikipedia.org/wiki/Galile...ite_navigation)

"Tension with the United States[edit]

A December 2001 letter from U.S. Deputy Secretary of Defense Paul
Wolfowitz to
the Ministers of the EU states as part of the US-lobbying campaign
against
Galileo
Galileo is intended to be an EU civilian GNSS that allows all users
access to
it. GPS is a US military GNSS that provides location signals that
have high
precision to US military users, while also providing less precise
location
signals to others. The GPS had the capability to block the
"civilian" signals
while still being able to use the "military" signal (M-band). A
primary
motivation for the Galileo project was the EU concern that the US
could deny
others access to GPS during political disagreements.[11]
Since Galileo was designed to provide the highest possible precision
(greater
than GPS) to anyone, the US was concerned that an enemy could use
Galileo
signals in military strikes against the US and its allies (some
weapons like
missiles use GNSS systems for guidance). The frequency initially
chosen for
Galileo would have made it impossible for the US to block the
Galileo signals
without also interfering with its own GPS signals. The US did not
want to lose
their GNSS capability with GPS while denying enemies the use of
GNSS. Some US
officials became especially concerned when Chinese interest in
Galileo was
reported.[14]
An anonymous EU official claimed that the US officials implied that
they might
consider shooting down Galileo satellites in the event of a major
conflict in
which Galileo was used in attacks against American forces.[15] The
EU's stance
is that Galileo is a neutral technology, available to all countries
and
everyone. At first, EU officials did not want to change their
original plans for
Galileo, but have since reached a compromise, that Galileo was to
use a
different frequency. This allowed the blocking or jamming of either
GNSS system
without affecting the other (jam Galileo without affecting GPS, or
jam GPS but
not Galileo), giving the US a greater advantage in conflicts in
which it has the
electronic warfare upper hand.[16]"

Note "(jam Galileo without affecting GPS, or jam GPS but not
Galileo)"

From what I recall. There were two major delays
a) Funding
b) choosing contractors

Initially the original two contenders made near identical bids.

Chosing OHB and Surrey Satellite Technology Limited (SSTL) solved
the problem.
--

SSTL - isn't that Guildford Uni?

As for the US 'blocking' GNSS signals but still being able to use it
themselves, surely that is a contradiction? What they would do is
re-activate selective availability which makes the ground Rx 'think'
it is anything up to 300m or so from it's real position. US Forces
have receivers that can read extended data that is also broadcast in
the data stream which gives them an accurate fix - 1m?


--
Woody

harrogate3 at ntlworld dot com

In article , Martin
wrote:

[Snip]

er no, it was the space science department of Surrey University at one
time, hence the name Surrey Satellite Technology Limited. Surrey
University is located in Guilford. Google knows Guilford University but
links to Surrey University. Did it undergo a name change long ago? I've
always known it as Surrey University.

It's still the University of Surrey. People tend to think univerities are
called after the town in which they are located.

--
from KT24 in Surrey, England

On Thu, 04 Feb 2016 18:32:14 +0100, Martin wrote:


snip

US want to be able to jam the frequency of Galileo if necessary. NEO says this
is impossible.

No-one said any such thing. Any signal can be jammed in a local area
if you can get near enough and use enough power.

The US objection was/is that they can't *control* Galileo.

In article ,
Martin wrote:
On Thu, 04 Feb 2016 17:56:39 +0000 (GMT), charles
wrote:

In article , Martin
wrote:

[Snip]

er no, it was the space science department of Surrey University at one
time, hence the name Surrey Satellite Technology Limited. Surrey
University is located in Guilford. Google knows Guilford University but
links to Surrey University. Did it undergo a name change long ago? I've
always known it as Surrey University.

It's still the University of Surrey.

I meant from Guilford University to Surrey University. :-)

It's always been the University of Surrey - and located in Guildford. Ever
since it ceased being Battersea Polytechnic.

Mind you, the Wiki entry is wrong in saying that Guildford is thn County
Town of Surrey, so it could be wrong about other things. too..

People tend to think univerities are
called after the town in which they are located.

I found it odd that Google routes Guilford University to Surrey University.

--
from KT24 in Surrey, England

In article , Martin
wrote:
On Thu, 04 Feb 2016 17:56:39 +0000 (GMT), charles
wrote:

In article , Martin
wrote:

[Snip]

er no, it was the space science department of Surrey University at
one time, hence the name Surrey Satellite Technology Limited. Surrey
University is located in Guilford. Google knows Guilford University
but links to Surrey University. Did it undergo a name change long ago?
I've always known it as Surrey University.

It's still the University of Surrey.

I meant from Guilford University to Surrey University. :-)

People tend to think univerities are called after the town in which they
are located.

I found it odd that Google routes Guilford University to Surrey
University.

That's moderately logical seeing as the University in Guildford is the
University of Surrey

--
from KT24 in Surrey, England

Martin wrote:

I found it odd that Google routes Guilford University to Surrey University

At least when you ask for directions from "Guildford University" to
"University of Surrey" it doesn't loop you round the ring-road.

On 05/02/2016 09:21, Andy Burns wrote:
Martin wrote:

I found it odd that Google routes Guilford University to Surrey
University

At least when you ask for directions from "Guildford University" to
"University of Surrey" it doesn't loop you round the ring-road.

The only thing the R2 DJ Steve Wright has said that made me laugh out
loud, was a letter he'd received from a listener in Guildford.

"Guildford... ?" he said, "...I'm sure it'll be nice when it's finished"

--
Mark
Please replace invalid and invalid with gmx and net to reply.

"Martin" wrote in message
...
On Fri, 5 Feb 2016 09:21:14 +0000, Andy Burns

wrote:

Martin wrote:

I found it odd that Google routes Guilford University to Surrey
University

At least when you ask for directions from "Guildford University" to
"University of Surrey" it doesn't loop you round the ring-road.

LOL

I've always wondered: is there any logic as to which universities are known
as "The University of X" and which are known as "X University"? Or is the
official "Sunday name" of *all* universities "The University of X" and the
colloquial name in normal parlance "X University"?

"NY" wrote in message
o.uk...

I've always wondered: is there any logic as to which universities are known as
"The University of X" and which are known as "X University"? Or is the official
"Sunday name" of *all* universities "The University of X" and the colloquial name
in normal parlance "X University"?

There certainly is with the WI, where the rule is that each shall be called "The X
Women's Institute".

With just one exception: The Womens Institute of Ugley.

In message , Martin
writes
On Fri, 5 Feb 2016 12:51:15 -0000, "NY" wrote:

"Martin" wrote in message
. ..
On Fri, 5 Feb 2016 09:21:14 +0000, Andy Burns

wrote:

Martin wrote:

I found it odd that Google routes Guilford University to Surrey
University

At least when you ask for directions from "Guildford University" to
"University of Surrey" it doesn't loop you round the ring-road.

LOL

I've always wondered: is there any logic as to which universities are known
as "The University of X" and which are known as "X University"? Or is the
official "Sunday name" of *all* universities "The University of X" and the
colloquial name in normal parlance "X University"?

Some towns have more than one university.

Indeed.

Newcastle University (Sunday name used to be 'The University of
Newcastle upon Tyne') mustn't be confused with Northumbria University
(Sunday name 'The University of Northumbria at Newcastle'). Oldies
sometimes forgetfully refer to the former as 'King's College' - one of
the colleges of the University of Durham, until it gained independence
in 1963.
--
Ian