GPS Cellphone Tracking - Track Anyone Anytime Anywhere

Brilliant :-)

"GpsSpying.Com" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

GSM mobile phone tracking system via the GPS-TRACK satellite network.
Based on repeater triangulation, the system tracks mobile phones using
GPS and GSM technology. Track anyone, anyutime, anywhere using their
cellphone number.

http://www.GpsSpying.Com/

In article <[email hidden]>,
GpsSpying.Com <[email hidden]> writes

Quoted message said:

GSM mobile phone tracking system via the GPS-TRACK satellite network.
Based on repeater triangulation, the system tracks mobile phones using
GPS and GSM technology. Track anyone, anyutime, anywhere using their
cellphone number.

http://www.GpsSpying.Com/

I am presuming that the phone constantly sends via GSM its GPS location.
So I presume it relies on the approval of the owner of the phone?

--
Bernard Hill
Selkirk, Scotland

In message <[email hidden]>

Bernard Hill said:

In article <[email hidden]>,
GpsSpying.Com <[email hidden]> writes

Quoted message said:

GSM mobile phone tracking system via the GPS-TRACK satellite network.
Based on repeater triangulation, the system tracks mobile phones using
GPS and GSM technology. Track anyone, anyutime, anywhere using their
cellphone number.

http://www.GpsSpying.Com/

I am presuming that the phone constantly sends via GSM its GPS location.
So I presume it relies on the approval of the owner of the phone?

"Based on repeater triangulation" indicates that GPS is not necessary
for the service to work.

Certainly the police have used this method to track the path taken by
criminals and terrorists without requiring the approval of the criminal.

Mike
--
o/ \\ // |\ ,_ o Mike Clark
<\__,\\ // __o | \ / /\, "A mountain climbing, cycling, skiing,
"> || _`\<,_ |__\ \> | immunology lecturer, antibody engineer and
` || (_)/ (_) | \corn computer user"

In article <[email hidden]>, Bernard Hill
<[email hidden]> writes

Quoted message said:

In article <[email hidden]>,
GpsSpying.Com <[email hidden]> writes

Quoted message said:

GSM mobile phone tracking system via the GPS-TRACK satellite network.
Based on repeater triangulation, the system tracks mobile phones using
GPS and GSM technology. Track anyone, anyutime, anywhere using their
cellphone number.

http://www.GpsSpying.Com/

I am presuming that the phone constantly sends via GSM its GPS
location. So I presume it relies on the approval of the owner of the
phone?

This is a spoof site.

There are some real sites that will estimate a rough position by
triangulation from the cellular network stations (phone masts) by
measuring the time delay of the network signals. In areas of sparse
coverage they cannot give a meaningful position.

They charge to locate and the phone user must respond to a text message
to give permission initially. The permission texts are also repeated at
random to cater for the case of somebody having access to the phone for
a short while to initially set it up.

--

Dominic Sexton

In article <[email hidden]>, Mike
Clark <[email hidden]> writes

Quoted message said:

In message <[email hidden]>

Bernard Hill said:

In article <[email hidden]>,
GpsSpying.Com <[email hidden]> writes

Quoted message said:

GSM mobile phone tracking system via the GPS-TRACK satellite network.
Based on repeater triangulation, the system tracks mobile phones using
GPS and GSM technology. Track anyone, anyutime, anywhere using their
cellphone number.

http://www.GpsSpying.Com/

I am presuming that the phone constantly sends via GSM its GPS location.
So I presume it relies on the approval of the owner of the phone?

"Based on repeater triangulation" indicates that GPS is not necessary
for the service to work.

Hm. Bear in mind that a GPS received does not send any information (or
am I wrong there?). So how does that work?

Seems to me that when the web site says "uses GSM" then it's sending
*something*.

Quoted message said:

Certainly the police have used this method to track the path taken by
criminals and terrorists without requiring the approval of the criminal.

Making them wear a device where the sending of information cannot be
turned off.

--
Bernard Hill
Selkirk, Scotland

In article <[email hidden]>, Dominic Sexton
<[email hidden]> writes

Quoted message said:

In article <[email hidden]>, Bernard
Hill <[email hidden]> writes

Quoted message said:

In article <[email hidden]>,
GpsSpying.Com <[email hidden]> writes

Quoted message said:

GSM mobile phone tracking system via the GPS-TRACK satellite network.
Based on repeater triangulation, the system tracks mobile phones using
GPS and GSM technology. Track anyone, anyutime, anywhere using their
cellphone number.

http://www.GpsSpying.Com/

I am presuming that the phone constantly sends via GSM its GPS
location. So I presume it relies on the approval of the owner of the
phone?

This is a spoof site.

Yeah, put in a number to watch. :-)

--
Bernard Hill
Selkirk, Scotland

In article <[email hidden]>, Bernard Hill
<[email hidden]> writes

Quoted message said:

In article <[email hidden]>, Mike
Clark <[email hidden]> writes

Quoted message said:

In message <[email hidden]>

Bernard Hill said:

In article <[email hidden]>,
GpsSpying.Com <[email hidden]> writes
>GSM mobile phone tracking system via the GPS-TRACK satellite network.
>Based on repeater triangulation, the system tracks mobile phones using
>GPS and GSM technology. Track anyone, anyutime, anywhere using their
>cellphone number.
>
>http://www.GpsSpying.Com/
>

I am presuming that the phone constantly sends via GSM its GPS location.
So I presume it relies on the approval of the owner of the phone?

"Based on repeater triangulation" indicates that GPS is not necessary
for the service to work.

Hm. Bear in mind that a GPS received does not send any information (or
am I wrong there?). So how does that work?

Some phones do have some GPS functionality built in but use the
communication with the network to actually calculate the position of the
handset. This is known as Assisted GPS and can lead to faster initial
position fixes and better performance in poor GPS reception conditions.
However it doesn't work at all when out of mobile coverage and the
network provider may charge a fee for every position calculated or for
the data volume to do so.

Quoted message said:

Seems to me that when the web site says "uses GSM" then it's sending
*something*.

Quoted message said:

Certainly the police have used this method to track the path taken by
criminals and terrorists without requiring the approval of the criminal.

Making them wear a device where the sending of information cannot be
turned off.

That is a form of tagging but mobile phone records (which base stations
can 'see' the phone at any one time) can be used to work out roughly
where the phone is. If a suspect has a phone when they are apprehended
the police may apply to the phone networks for this data and it may be
enough to confirm an alibi or to place the suspect (or their phone) in
the vicinity of the crime at the time it was committed. Not strong
enough evidence for a conviction but enough to add to a case.

--

Dominic Sexton

In article <[email hidden]>, Dominic Sexton
<[email hidden]> writes

Quoted message said:

Some phones do have some GPS functionality built in but use the
communication with the network to actually calculate the position of
the handset. This is known as Assisted GPS and can lead to faster
initial position fixes and better performance in poor GPS reception
conditions. However it doesn't work at all when out of mobile coverage
and the network provider may charge a fee for every position calculated
or for the data volume to do so.

I should probably have also said that there may be phones that have a
conventional GPS receiver built in that does not require interaction
with a base station to work.

--

Dominic Sexton

In article <[email hidden]>, Dominic Sexton
<[email hidden]> writes

Quoted message said:

In article <[email hidden]>, Dominic Sexton
<[email hidden]> writes

Quoted message said:

Some phones do have some GPS functionality built in but use the
communication with the network to actually calculate the position of
the handset. This is known as Assisted GPS and can lead to faster
initial position fixes and better performance in poor GPS reception
conditions. However it doesn't work at all when out of mobile coverage
and the network provider may charge a fee for every position
calculated or for the data volume to do so.

I should probably have also said that there may be phones that have a
conventional GPS receiver built in that does not require interaction
with a base station to work.

Of course. GPS does not work by any form of interaction, it is entirely
passive.

My point is that a mobile phone needs to be transmitting to give anyone
else it's location. Now when a call is made that's transmitting and I
can see that phone records can be used together with base station
delays. But does a phone transmit when not in use? Or off, or when in
"flight" mode? I very much doubt it. So such phones can't be used to
track someone. Unless I am mistaken...

--
Bernard Hill
Selkirk, Scotland

In article <[email hidden]>, Bernard Hill
<[email hidden]> writes

Quoted message said:

My point is that a mobile phone needs to be transmitting to give anyone
else it's location. Now when a call is made that's transmitting and I
can see that phone records can be used together with base station
delays. But does a phone transmit when not in use? Or off, or when in
"flight" mode? I very much doubt it. So such phones can't be used to
track someone. Unless I am mistaken...

Not when off or in flight mode no but when on they periodically
communicate with a base station or try to. That way the network knows
which base station(s) are most likely to be able to reach the phone in
the event of an incoming call or message so they don't have to page the
whole network.

I'm sure smart criminals and the paranoid will be getting wise to this
now but the vast majority of mobile phone users will have them on when
they are out an about.

There was even talk of monitoring anonymous data from the movements of
mobile phones along motorways and trunk roads as a way of traffic
monitoring.

--

Dominic Sexton

Bernard Hill said:

In article <[email hidden]>, Dominic Sexton
<[email hidden]> writes

Quoted message said:

In article <[email hidden]>, Dominic Sexton
<[email hidden]> writes

Quoted message said:

Some phones do have some GPS functionality built in but use the
communication with the network to actually calculate the position of
the handset. This is known as Assisted GPS and can lead to faster
initial position fixes and better performance in poor GPS reception
conditions. However it doesn't work at all when out of mobile coverage
and the network provider may charge a fee for every position
calculated or for the data volume to do so.

I should probably have also said that there may be phones that have a
conventional GPS receiver built in that does not require interaction
with a base station to work.

Quoted message said:

Of course. GPS does not work by any form of interaction, it is entirely
passive.

Quoted message said:

My point is that a mobile phone needs to be transmitting to give anyone
else it's location. Now when a call is made that's transmitting and I
can see that phone records can be used together with base station
delays. But does a phone transmit when not in use? Or off, or when in
"flight" mode? I very much doubt it. So such phones can't be used to
track someone. Unless I am mistaken...

Listen to an AM radio programme and place your switched on phone next
to the radio. You'll be able to hear the characteristic periodic
chirping conversation as the base station and phone check that they're
still in sync with one another. With my phone company and location
that's usually a few times an hour if I'm not moving, more often if
I'm on the move.

--
Chris Malcolm [email hidden] DoD #205
IPAB, Informatics, JCMB, King's Buildings, Edinburgh, EH9 3JZ, UK
[http://www.dai.ed.ac.uk/homes/cam/]

Bernard Hill said:

Of course. GPS does not work by any form of interaction, it is
entirely passive.

My point is that a mobile phone needs to be transmitting to give
anyone else it's location. Now when a call is made that's
transmitting and I can see that phone records can be used together
with base station delays. But does a phone transmit when not in use?
Or off, or when in "flight" mode? I very much doubt it. So such
phones can't be used to track someone. Unless I am mistaken...

As others have said, a cellphone which is switched on talks fairly regularly
to the base station. That means the cell is identified and recorded, though
cells can be very large, particularly in rural areas. In urban areas the
cells can be quite small, as little as a few hundred metres.

Further to the other answers.
If the cellphone is spotted by more than one base station (which happens
regularly, cellular networks hand calls from one base to another, and a
phone just switched on needs to check which base to talk to), then its
possible to triangulate an approximate location of the phone.
Its possible to make further estimates; if there is a data point at one
moment in time, then another later, one can make reasonable estimates about
trajectory and route (eg. its doing over 60mph, so its probably a car on the
motorway in the area).

I'm not sure if the cellular operators are offering triangulated location
based services. I was last involved professionally in this about six years
ago, so there is plenty of time to have deployed the services.
But at the time, there was no plan to release the triangulated data to third
party companies (being valuable to the network operator), and calculation of
the location would be done with the explicit consent of the user of the
phone (concerns over privacy laws and privacy publicity).

- Nigel

--
Nigel Cliffe,
Webmaster at http://www.2mm.org.uk/

In article <[email hidden]>, Chris Malcolm
<[email hidden]> writes

Quoted message said:

Quoted message said:

My point is that a mobile phone needs to be transmitting to give anyone
else it's location. Now when a call is made that's transmitting and I
can see that phone records can be used together with base station
delays. But does a phone transmit when not in use? Or off, or when in
"flight" mode? I very much doubt it. So such phones can't be used to
track someone. Unless I am mistaken...

Listen to an AM radio programme and place your switched on phone next
to the radio. You'll be able to hear the characteristic periodic
chirping conversation as the base station and phone check that they're
still in sync with one another. With my phone company and location
that's usually a few times an hour if I'm not moving, more often if
I'm on the move.

Ah, so you're saying it does transmit when not in use. Fair enough, that
sounds possible. But I'm sure it doesn't do it when off... ;-)

--
Bernard Hill
Selkirk, Scotland

Hi, Thanks for all the information. As far as I know a cell phone is tracked by its IMEI number and the cell phone can only be traced if it is switched on. Also the exact location cannot be found. It can be found only using some software which needs to be installed on your cell phone as well. ___________________________________________________________
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