Signal Knight Brand Portable Cell Phone Jammer

Model: SK-16A Portable Cell Phone Jammer

Introduction:

SK-16A portable cell phone jammer is the most popular signal jamming security product. This model portable cell phone jammer can form an electromagnetism protection field around the user, in order to block cell phone from receiving and transmitting the signals to the base station; thus it can avoid the leakage of secret information through your cell phone. At the same time the portable cell phone jammer can eliminates the noise pollution. This kind of portable cell phone jammer is really now a favorite from private clients.

How to Install: 

1.     Install this device at the height about 1.5-1.7m will get the best jamming result, keep this device in vertical.

2.     Never install this device close to the wall; the wall will affect the interference signals. Put this device 30-50cm away from the wall.

3.     One set of this device can block the GSM/CDMA/3G signals up to 10m radius, covers an individual room of around 315 square meters.

4.     To cover an area bigger than 315 square meters, please install multiples of this device to ensure better jamming effect, e.g. in an individual space of 400 square meters, you should need to install 2 devices working together.

5.     This device is not able to cover different spaces divided with walls. Install individual jammers in different partition of a building to ensure the best jamming effect.

How to operate the SK-16A Portable Cell Phone Jammer:

1.     At the very first time to use, if you want to use this device outside, please first use the attached switching power adaptor to charge the built-in rechargeable battery. It will take about seven hours to full charge the batter. If you install this device indoor for long term use, connect the switching power adaptor and you can use this device instantly.

2.     Before turn on the power switch, always check if the antennas are installed securely. If you turn on the power switch without the antennas installed on this device, it shall heavily damage this device. Never remove the antennas; otherwise you will void the warranty.

3.     Turn on the power switch, the green LED will light up and this device starts to emit interference signals. When turn off the power switch, the LED will put out and this device stops working.

4.     After the battery is fully charged, this device can be used for 1-2hrs.

About the Battery:

1.     If the green LED does not light up after turn the power switch, it means the battery runs down. Connect the switching power adaptor to continue the jamming and to recharge the battery at the same time.

2.     It will take about 7 hours to full charge the battery under power off condition. If recharge under power on condition, it will takes about 36 hours to full charge the battery.

3.     In long term continuous use, it had better to remove the plug of switching power adaptor from this device once six months. Let this device use battery power for 1-2hrs, and then connect with switching power adaptor again. This will re-fresh the battery and keep the battery in good condition.

4.     If you are not going to use this device for a long time, please set the On/Off switch at “Off” and check the battery power once three months.

Features of SK-16A Portable Cell Phone Jammer

--- Taking use of super-high frequency and mini-power interference technology, high frequency.

--- Effectively making subsections, just interfering downlink and no interception on the base station.

--- Slow start up design of circuit. These elements can maintain the stable operation condition with high integration.

--- Coolest and lowest price jammer on the market.

--- Portable, Small, Compact and Robust.

--- Battery or Mains compatible.

--- To keep you away from noise or disturbance of unexpected phone calls or text messages (SMS)

--- Worldwide compatible; Easy to operate.

--- To jammer cell phone communication links within an effective area.

--- No transmissions or receptions of cellular phone calls in coverage area.

--- All specified frequency bands will be blocked simultaneously.

--- For using at meeting rooms, conference rooms, museums, galleries, theatres, concert halls, churches, temples, restaurants, classrooms, training centers, factories, banks, trains, buses etc.

Connection:

Three SMA connectors which are used to connect with antennas.

Accessories:

This portable jammer consists of many subassemblies. They include mainframe (with built-in storage battery), different kinds of antenna, charger, and car charger.

Antennas:

Omni-directional antennas. When connecting the antenna with machine, please be sure to connect as the indication on the machine.

Important Notice:

When the battery runs down, if the switch is kept at “on”, the battery will be over discharge and will damage the battery.

Please set the on/off Switch at “off” and connect the switching power adaptor to charge this unit for 7hrs. Battery will be over charged if you keep on charging it without using that will also damage battery. The producer accepts no liability for the damage caused by the over discharge or charge.

Be sure to connect all the antennas firstly before the power supply is switch on. Please do not take off antennas when the machine is working.

Antennas shall be used vertical to the ground, working more efficiently.

Please don’t put the jammer in the water and fire to avoid using in the bad. Condition of over-wet, over-hot, high-voltage and high magnetism.

After charging the cell phone jammer you will see a red LED light, however please recharge the Cell Phone Jammer two more times for full battery charging.

The jamming area is influenced by the location of the cell tower and the obstacles between cell tower & the cell phone jammer. It means that in normal condition if the distance is close between the cell tower & the cell phone jammer, it will have very less jamming area. Likewise, if there are obstacles & walls between the cell tower & the cell phone, the cell phone jammer will give less jamming area.

Any ruin and disrepair caused by incorrect operation and disassembly will exclude from the repair with free of charge.

1.     Unauthorized repair or dismantle of this device will void all the warranties.

2.     Avoid using this device in an airplane.

3.     Persons with Pacemaker implants are prohibited from using this device.

4.     Avoid water; over-wet, over-hot, high-voltage and high magnetism.

5.     Do not store this device in an excessively hot place.

6.     Avoid knocks or dropping this device.

Specification:

*The mentioned jamming distances are based on the base station signal strength at -80dBm; actual jamming distance will be varied depending on the strength and type of cellular system.  

Contact us to send us an inquiry on the SK-16A Portable Cell Phone Jammer. We will get back to you with more details in time.

FAQs (Frequently Asked Questions):

Will Cell Phone Jammer interfere with the other electronic equipment to work in normal condition?

No. Because the electromagnetic signal sent by Cell Phone Jammers are totally used in the band that regulated by government and just have interception effect to cell phone communication.

Is Cell Phone Jammer harmful to the human body and cell phone?

Please do not need to worry about it. The intensity of electromagnetic signal sent by Cell Phone Jammer is in compliance with the national standard of environmental electromagnetic wave health. The signal sent by Cell Phone Jammer is relatively small and no harmful to human body according to the testing result. Meanwhile, this device just damages the receiving condition to the cell phone and makes the normal connection between cell phone and base station impossible. Therefore, no damage will occur on cell phone itself.

Is there any difference of distance between using Cell Phone Jammer indoor and outdoor?

Yes. Generally speaking, outdoor signal is bigger than the indoor signal. Thereby, the shielding effect is worse in outdoor. Strictly speaking, whether using indoor or outdoor, the effective distance of interference is related to the surrounding around, for example the distance between different base stations, positions of installation etc.

Is the Cell Phone Jammer has the same effect to GSM cell phone and CDMA Cell Phone?

The capacity of anti-interference of CDMA is much better than GSM Cell phone. So the interference effect for GSM Cell phone is better than CDMA Cell phone.

The shell of Cell Phone Jammer will become hot after working for some times. Does the long working time will damage the machine itself?

It is very normal. When designing, we are thinking of taking use of the conductivity of metal shell to help the heat sinking during our designation. By this way, the machine can be kept in good working condition for long time.

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