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   KJ Series "SafeKeeper" ECM

   Professional Digital Jammers for Cellular Phones
 


 

 


... designed for all wireless communications and mostly cellular bands (GSM850, GSM900, GSM1800, GSM1900, iDEN, NEXTEL, TDMA, AMPS, CDMA, NMT, DCS, PHS, PCS, 3G, UMTS, etc.)... Cellular telephones and other requested communication devices (Radio-Communications, Wi-Fi, GPS, Satellite Phones etc.) located in the protected area cannot transmit or receive. Devices located outside the area will have regular services and will not be affected by the PRO Jammer. Unlike KAVIT's state of the art jammers, competitive products may suffer from serious problems of stability and reliability.

KAVIT's battle-proven products are used by the most demanding forces & agencies worldwide.

Typical Applications: Security - RCIED / EOD / ECM / VIP / Anti-Eavesdropping & Anti-Communication, Safety, Privacy, Acoustic Isolation. What is RCIED?

RCIED stands for "Remote Controlled Improvised Electronic Device". In other words, RCIED is a RC (remote controlled) Bomb. RCIEDs are widely used by terrorists worldwide mainly in conflict zones, and have been causing a large number of casualties, especially to the US forces in Iraq & Afghanistan.

A typical RCIED is composed of a bomb, attached to a cellular phone. After installing the RCIED in sensitive locations like main roadsides, the terrorist can then dial to activate it from anywhere and at any time, of course he would wait for the right moment in order to maximize the human injury.

By accurate & effective operation, the Kavit PRO Jammers cut off the RC triggering transmissions to the RCIED receiver, thus immediately preventing bomb denotation, and save life, sometimes of many.

If you want the best for your Army, equip it with Kavit Professional Jammers.

Download Illustration Brochure English / Español

Download Generic Datasheet for KJ300 Series 1W per band (Januray 1, 2010)
Download Generic Datasheet for KJ600S series 3W per band (Januray 1, 2010)
Download Generic Datasheet for KJ1000S series 15W per band (Januray 1, 2010)
Download Generic Datasheet for KJ2000S series 30W per band (Januray 1, 2010)
Download Generic Datasheet for KJ4000 series 100W per band (Januray 1, 2010)

Main Available Options:

* RF Output Power Per Band: 1W / 3W / 15W / 30W / 100W etc.
* Operation from an External "12VDC" [Vehicle] Battery / 24VDC / 90-240VAC
* User Programmable Power Attenuation (normally unneeded for IED/EOD applications)
* 'S' suffix = Portable Compact
Pelican Suitcase (trolley-style & rugged)
* 'SPM' suffix = Portable Compact Manpack e.g. KJ1000SPM
* Mobile/Vehicular/Fixed [19" Rack Modular] Metallic Case
* Internal and/or External Hot-Swap Rechargeable Battery
* Internal High Gain Directional Panel Antennas
* External High Gain Omni-Directional (360°) Antennas
* External High Gain Directional Antennas (e.g. Yagi / Panel / Long Periodic)
* Monitoring System allowing to easily control all units deployed in the field from a central place
* Coverage: Cellular communications (e.g. GSM, CDMA, iDEN, AMPS, TDMA, PHS, UMTS etc.) and other requested wireless & radio communications equipment (HF, VHF, UHF, Satellite Phones etc.)

Broadband Jammer e.g. "20-3000", is it a good solution ?

Not really. The larger the total bandwidth covered by the jammer, the less the effective time/power which each frequency point gets. In fact there are even more issues which won't be detailed here.

Programmable Communication Windows, is it an advantage ?

Not really. A
'friendly' hole for your needs is also a friendly hole for your enemy needs..

Limitation of Electronic Jammers:

Unfortunately the 'smart bad guys' could always overcome any jammer in various ways e.g. by exploiting the unlimited frequencies spectrum and so on.

The conclusion is that, unless there are specific known frequencies threats in certain arena, jammers are generally destined to cope only with the 'normal bad guys', who use popular available devices like cellular telephones. Therefore, at this time, Kavit recommends that the customer consider the minimal vital frequency ranges required for his application.

KAVIT is able to quickly provide you with the most professional and cost effective solutions for ANY realistic requirements of jamming systems.

What about FCC or CE ?

Jammers (of any kind, any vendor) can never pass any such or similar standard. If any vendor claims to have FCC/CE for its jammer, we'll be happy to hear about the model and its 'certification' number.

Cellular Activity Detection & Responsive Jammers

In theory, it could be better (e.g. in terms of longer battery operation time) if the jammer could be responsive, and operate for certain [programmable] period whenever a cellular activity is detected. However, for security purposes it shall not be done:

Regardless of the vendor, once a jammer is switched on, it usually takes time until the cellular phone becomes disabled. This period may be more than enough to activate the RCIED.

Similarly, in case of prison application, a prisoner may be able to send a SMS message [or even make a shortest voice call] every time after the detection-activated jamming period stops.

About coverage range...

Some companies specify jamming distances which are unrealistic, at least not for the desired environment, where the cellular RSSI (received signal strength indication) for instance is not so low. The simple fact is that the jamming coverage radius depends not only on the jammer itself, but also on various additional factors e.g. the cellular RSSI from the respective BS (base station) at the target arena, the cellphone type and model, frequency band and modulation type, terrain shape, quality and directivity of interfering obstacles and more. If a cellphone is located for instance near its respective BS, the cellular RSSI will be high and as a result the jamming range will be smaller.

Conclusion: instead of referring to meaningless coverage specifications, refer to a Professional Manufacturer, which will tailor for you an optimal jammer based on your detailed vital requirements.

Monitoring System ?

Kavit Jammers e.g. the KJ4000 series can be equipped with an option to support a Control & Monitoring System, allowing to easily control many units from a central command or place.



Please do not hesitate to contact us, we will be happy to advise on the best solution for your applications.

Tel:  +972 39 52 35 40
Fax: +972 39 52 35 11

info@kavit.com
www.kavit.com



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