MINI 4g cell phone jammer cell phone jammer kit

Mini 4g cell phone jammer  NSA’s global spying operation, all in the name of upholding security has essentially resulted in the development of spy proof technologies aimed at protecting you from this menace.
Cell Phone Jamming Kit  in this regard that various security companies are thus taking up the initiative to develop spy proof smart phones and seemingly secure products for government institutions, employees as well as the average person. This trend has essentially resulted in the Wall Street Journal coming up with a report on the same while telling you that; “A crypto war is coming to your pocket,”
That having been said, two different corporations based in France have been working on the development of more secure Android devices thereby preventing any form of spying attacks that may be directed to you.
The new Android devices will essentially be better placed at deterring spying attacks compared to the mobile offerings preferred by most carrier stores.Now there are many special cell phone blocker devices, which can completely disable the mobile network and the Internet. www.jammerdk.com
At the same time Bull SA has been distributing Hoox m2 smart phone at a price of $2,760. This smart phone actually runs on a re-engineered version of Android   in a bid to ward off any hacking attempts and encryption of calls. The Hoox m2 further employs the use of a fingerprint sensor that only allows you to log into your device.
In addition, any attempts to pre install spyware or any form of spying software on your device before you get it may be virtually impossible with the Hoox m2 software as that would essentially require the setting up of the fingerprint sensor; a move that would be detrimental since it would be impossible for any other person to use the device once the sensor is activated as it is not easy to deactivate the fingerprint sensor without losing any information put into any device.
Some company protecting pricacy with cell phone signal jammers, another that is dedicated to protecting g their customers is Thales SA who have released Teopad; an “enterprise software  system” that will help secure your tablet and/or android smart phones by separating them into two different entities; for personal and business      applications. This concept has further been adopted by Samsung for use on mobile phone devices
through the use of “Samsung Knox software” Lojack Jammer

Cell phone signal jammer for sale

What is meant by a cell phone jammer?
A mobile phone jammer is an instrument used to prevent cellular phones from receiving signals from base stations.
 Cell phones are everywhere these days. According to the Cellular Telecommunications and Internet Association, almost 195 million people in the United States had cell-phone service in October 2005. And cell phones are even more ubiquitous in Europe.
It's great to be able to call anyone at anytime. Unfortunately, restaurants, movie theaters, concerts, shopping malls and churches all suffer from the spread of cell phones because not all cell-phone users know when to stop talking. Who hasn't seethed through one side of a conversation about an incredibly personal situation as the talker shares intimate details with his friend as well as everyone else in the area?
A trade exhibitor shows a portable pocket-sized cell phone signal jammer JM-850c . See more cell phone pictures.
While most of us just grumble and move on, some people are actually going to extremes to retaliate. Cell phones are basically handheld two-way radios. And like any radio, the signal can be disrupted, or jammed.
In this webside, you'll see how cell phone blocker  work and learn about the legality of their use.
­Disrupting a cell phone is the same as jamming any other type of radio communication. A cell phone works by communicating with its service network through a cell tower or base station. Cell towers divide a city into small areas, or cells. As a cell-phone user drives down the street, the signal is handed from tower to tower.

3G4G Cell Phone Blocker GSM CDMA Broad Spectrum GSM Mobile Phone Signal Jammer

Cell Phone Jamming Device

Jamming devices overpower the cell phone by transmitting a signal on the same frequency and at a high enough power that the two signals collide and cancel each other out. Cell phones are designed to add power if they experience low-level interference, so the cell phone signal jammer must recognize and match the power increase from the phone.
Cell phones are full-duplex devices, which means they use two separate frequencies, one for talking and one for listening simultaneously. Some mobile phone jammers block only one of the frequencies used by cell phones, which has the effect of blocking both. The phone is tricked into thinking there is no service because it can receive only one of the frequencies.
Less complex devices block only one group of frequencies, while sophisticated jammers can block several types of networks at once to head off dual-mode or tri-mode phones that automatically switch among different network types to find an open signal. Some of the high-end devices block all frequencies at once, and others can be tuned to specific frequencies.
To jam a cell phone, all you need is a device that broadcasts on the correct frequencies. Although different cellular systems process signals differently, all cell-phone networks use radio signals that can be interrupted. GSM, used in digital cellular and PCS-based systems, operates in the 900-MHz and 1800-MHz bands in Europe and Asia and in the 1900-MHz (sometimes referred to as 1.9-GHz) band in the United States. Cell phone jammers can broadcast on any frequency and are effective against AMPS, CDMA, TDMA, GSM, PCS, DCS, iDEN and Nextel systems. Old-fashioned analog cell phones and today's digital devices are equally susceptible to jamming.
The actual range of the cell phone blocker depends on its power and the local environment, which may include hills or walls of a building that block the jamming signal. Low-powered jammers block calls in a range of about 30 feet (9 m). Higher-powered units create a cell-free zone as large as a football field.

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The Appearance of Jamming

Some cell phone jammers are made to look like actual phones. Others are briefcase-sized or larger.
The biggest cell phone signal jammers used by police and the military can be mounted in vehicles for convoy security.
Inside Cell Phone blocker.
Electronically speaking, 3g4g cell phone jammers are very basic devices. The simplest just have an on/off switch and a light that indicates it's on. More complex devices have switches to activate jamming at different frequencies. Components of a jammer include:

Antenna

Every jamming device has an antenna to send the signal. Some are contained within an electrical cabinet. On stronger devices, antennas are external to provide longer range and may be tuned for individual frequencies.

Circuitry

The main electronic components of a mobile phone blocker are:

• Voltage-controlled oscillator - Generates the radio signal that will interfere with the cell phone signal
• Tuning circuit - Controls the frequency at which the jammer broadcasts its signal by sending a particular voltage to the oscillator
• Noise generator - Produces random electronic output in a specified frequency range to jam the cell-phone network signal (part of the tuning circuit)
• RF amplification (gain stage) - Boosts the power of the radio frequency output to high enough levels to jam a signal

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High power cell phone jammer backpack jammer military jammer

March 16, 2016 8:13:09 PM PDT

The Backpack Jammer can
be used by protective forces conducting radio jamming. Although the
intended goal is the defeat of remote controlled weapons, the cell phone signal Jammer is not just an IED Jammer. This system is also able to interfere with communication equipment
Number of Frequency bands:Up to 4 bands.The cell phone blocker can make 6 antennas as well, it depends on the customers inquiry.Any interested please contact info@jammerdk.com
Output watts:50watt 12 -20watt/band ( for 4 bands with 4 antennae )
Power Consumption:Max: 380W
Power supply voltage voltage voltage voltage:~230VAC / ~110VAC +12/24VDC (optional)
Power Adjustment:Multi level potentiometer adjustable by computer.
Battry:2-3 hours ( for 3 bands, it will be more than 3 hours )
Range Radius:Up to 120 meters ( signal <=-75dbi in the application place. )
Housing:Metal enclosure
Total System weight:Weight: around 15KG
dity Humidity :up to 80%
Operation temperatures:-10° … +50° C
Antenna gain:3-4 dBi (Omni Antenna)
Directional Antenna  Number:up to 2pcs
Omni Antennae number:Omni Antenna Up to 4pcs
Delivery time:within 10 workingdays
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