http://www.comstrac.com/ .ComsTrac Limited specialises in providing professional surveillance and protection equipment for Law Enforcement Agencies, supplying all forms of communication intercept systems, for GSM, CDMA, Satellite, Computer and Standard Telephone Communications.

2. ComsTrac Limited has specialized in the supply of professional surveillance and
protection equipment for Cellular Interception, Cellular Tracking and Cellular
Monitoring for Law Enforcement Agencies for the last 10 years especially GSM
Interception, GSM Monitoring, GSM Interceptor and interception monitoring systems
both active and passive versions.
We have considerable experience in the supply of all forms of Cellular and Satellite
communication intercept and interception monitoring systems, for Cellular
Interception, GSM Interception Systems, Passive GSM Interceptors and interception
monitoring, Hybrid Active GSM Interceptors and interception monitoring, CDMA,
Satellite, Computer and Standard Telephone Communications. We have specialized in
the supply of VIP and Convoy protective Jammers, armoured vehicles and protective
ballistic clothing to high level clients on 4 continents.

4. Communication Jammers
Communication Jammers are often used for
heavy scale signal jamming of buildings,
prisons, and outdoor perimeters.
While some choose to block all RF signals,
most communication jamming is tuned to
cellular bands. This is because of the ever
increasing problem of smuggled phones in
both prisons and Government buildings.
Communication Jammers are deployed first and foremost by correctional
institutions to actively disrupt criminals from committing additional
offenses by using smuggled cell phones in prisons. Other users of
Communication Jammers consist of Government facilities, diplomatic
embassy and consulate security, as well as research institutions who need
to secure their facilities.

5. Examples
Of
Communication
Jammers

6. Wi-Fi Jammers
used to prevent voice and
data over a wireless network.

7. GSM Jammer
Designed for jamming GSM
mobile handsets in IMT 2000,
2G, as well as 3G.

8. CDMA Jammer
Bands to block by RF Jamming
include DCS and PCS, UMTS, as
well as older AMPS and TDMA
phone handsets.

9. CONTACT US
Communication Tracking Systems
ComsTrac Limited
5 Lyttelton Road
London
N2 0DW
Tel: +44-208-2018898
Fax: +44-845-2802659
Email: sales@comstrac.com