BT announce new UK police comms contract
Eavesdropper
Wales and Scotland with fully digital, state-of-the-art, secure mobile radio
communication services. But this contract represents more than the UK's
first ever unified communications service for police forces. It marks the
start of officers on the beat using high-tech tools to better police our
streets
In other words if it's Bt it's sure to be a fuck up.
read the rest here...
Dan Yemiola
areas of North America.
NexTel is contracting with some police agencies to provide Police and local
government Talk groups in their systems. The local government talk groups are
mixed in with the PCS talk groups, and Cell Phone calls.
The FCC ( the US equivalent of the RA) has just mandated that PCS and Cellular
telephone service providers Provide "priority access" to law enforcement and
local government agencies that meet certain criteria.
Keith
likely to escalate as well.
The choice for some forces made radio or officers.
Dan Yemiola <Dyem...@LexComInc.Net> wrote in message
news:3A09C583...@LexComInc.Net...
proma1
action in regards to how the governmentr awarded the contract,lancs police
are two years behind on there trial which was supposed to be trialing for
the uk,but the only big user of the emewrgency service tetra is the
millennium dome,which a friend of mine who is a manager there says the tetra
set is crap compared to his uhf analogue trunked net he uses along with
mobile and pager,i am sure though it was useful on tuesday though
dolphin civil tetra seems to be going well,with many security companies
using it as link with all there control rooms around the uk,but still using
analogue radios on there sites.
i have seen taxis and tour buses using civil tetra as well
regards paul
Eavesdropper <i...@eavesdropper.worldonline.co.uk> wrote in message
news:3a09...@news.server.worldonline.co.uk...
woody
<Dyem...@LexComInc.Net> writes
>This is similar to what is happening in some of the high density population
>areas of North America.
>
>NexTel is contracting with some police agencies to provide Police and local
>government Talk groups in their systems. The local government talk groups are
>mixed in with the PCS talk groups, and Cell Phone calls.
>
>The FCC ( the US equivalent of the RA) has just mandated that PCS and Cellular
>telephone service providers Provide "priority access" to law enforcement and
>local government agencies that meet certain criteria.
>
>Eavesdropper wrote:
>
>> Wales and Scotland with fully digital, state-of-the-art, secure mobile radio
>> communication services. But this contract represents more than the UK's
>> first ever unified communications service for police forces. It marks the
>> start of officers on the beat using high-tech tools to better police our
>> streets
>>
>> In other words if it's Bt it's sure to be a fuck up.
>>
>> read the rest here...
>>
>> http://www.bt.com/World/news/magazine/issue4_airwave.htm
>
>
>
supplier for a consortium of themselves, Motorola, and TRW. Nokia were
part of it but pulled out.
The system they are providing is a stand-alone Tetra-based digital radio
comms system and has nothing to do with the existing cellular
infrastructure. AIUI there will be about 1600 radio sites to cover
England and Wales, and will allow any user to call anyone anywhere if
they know the code, or their own control from anywhere. Why anyone
should think there is a need for a user on Portsmouth pier to want to
talk to someone on the Metro in Newcastle-upon-Tyne beats me, but it can
supposedly be so used.
One main benefit is that Police users theoretically can directly access
the Police National Computer for vehicle checks etc, but there again
pigs may fly!
The Public Safety Radio Communications Project (PSRCP) changed to PSRCS
.....System, is now known as Airwave. It was originally conceived not
only as a spectrally efficient comms system, but for the first time in
the UK will permit inter-service comms between Fire, Police, and
Ambulance. [Currently the Police use frequencies around 150MHz, some AM,
some FM, and UHF-FM around 450 and 465MHz for personal radios; the Fire
service use 71 and 82-84MHz mostly AM but a few FM; the Ambulance use
166 and 171MHz FM. The new system will use 380-400MHz.] From the
original concept, for such a large infrastructure with potentially
around 3000 users for each of the 43 counties, BT realised they would
need more users to gain economies of scale. Thus the list of users now
includes local authorities, the Mines Rescue Service, and the like - the
last list I saw was 105 members long!
Maybe I'm a sceptic, but it does look like putting all of the eggs in
one basket. In a busy urban area there will be many small cells, so if
one cell goes down there may be little, even no noticable system
degradation. But if the one site covering an area of the Yorkshire
Dales or the Welsh mountains goes down, you've lost the lot - for all
users. At least at present all three main services have their own
infrastructures not necessarily on the same broadcast sites.
You mention hierarchy. I understand this already exists in the UK
cellular systems, with some around 7 levels of priority. If a cell is
full and a high priority user comes on line the lowest priority caller
that has been in traffic longest will have their call terminated without
warning. I believe that Airwave has a similar priority structure - 13
levels - great if the call dropped at a scene is an ambulance user
sending monitoring data or a TV picture back to a hospital A&E dept.!
AIUI there is one commonality: some of the chips used and the underlying
basics of the technology of Tetra is common with cellular.
--
Andrew W.
Harrogate, UK
wo...@tangon.demon.co.uk
g1uxp@gb7cym
Naughty Naughty !
"Eavesdropper" <i...@eavesdropper.worldonline.co.uk> wrote in message
news:3a09...@news.server.worldonline.co.uk...
England,
> Wales and Scotland with fully digital, state-of-the-art, secure mobile
radio
> communication services. But this contract represents more than the UK's
> first ever unified communications service for police forces. It marks the
> start of officers on the beat using high-tech tools to better police our
> streets
>
> In other words if it's Bt it's sure to be a fuck up.
>
> read the rest here...
>
> http://www.bt.com/World/news/magazine/issue4_airwave.htm
Oh do please shut up you dickhead.
Its no wonder you lost your site
you are just anti- damn everything- arn't you !
(Apart from claiming your job seekers allowance)
©2000 Naughty Naughty
Martin Briscoe
from woody <wo...@tangon.demon.co.uk> contains these words:
> Maybe I'm a sceptic, but it does look like putting all of the eggs in
> one basket. In a busy urban area there will be many small cells, so if
> one cell goes down there may be little, even no noticable system
> degradation. But if the one site covering an area of the Yorkshire
> Dales or the Welsh mountains goes down, you've lost the lot - for all
> users. At least at present all three main services have their own
> infrastructures not necessarily on the same broadcast sites.
Not much different to the present system! It is quite common for the
three emeregency services to share sites and often the police provide
the links between the sites in rural areas. It is not unknown for
these links to fail and so all emergency services to lose their comms.
MB