1.When mobile phone jammer are working, why there is still have signals?

A: This is an illusion. In fact, mobile phone hasn’t communication now. If you dial-out, you will see No signals.

2.Does the mobile phone jammer interfere with other electronic equipment working?

A: No. This is because the electromagnetic signal is in the section of working frequency requlated by State, only block the communication of mobile phones. And the signals always been in a relative rest state, haven’t affect any electronic equipment.

3.Does the shielding of mobile phone jammer do harm to human body and mobile phone?

A: The signal from mobile phone jammer is also a electromagnetic signal, and there is no equipment to exchange their data. It alawys been in a relative rest state, have no harm to human body. So it widely used in which forbid to use mobile phone, such as meeting rooms, churches, court, library, examination rooms, gas station, oil depot, military, command center etc. Please rest assured, the electromagnetic signal from mobile phone jammer is very weak. The test data shows that the signal have no harm to human body. At the same time, the mobile phone jammer is only to block forward signal, and make mobile phone can not connect with the BTS, so it is no harm to mobile phone.

4.Is there any difference that use mobile phone jammer indoors and outdoors?

A: Yes. The effective distance of mobile phone jammer refer to indoor distance. It reaches several hundred meters out of the door. The effective distance is related to the environmental conditions whether used indoors or outdoors, such as the distance from the

BTS, the location of installation and so on. So you should notice these factors when using mobile phone jammer.

5.Does the mobile phone jammer have the same effect for GSM and CDMA mobile phone?

A: Because of the interference immunity of CDMA mobile phone is better than GSM mobile phone, the effective jamming distance of CDMA is less than GSM, but the difference is not great. It should be noticed that add the mobile phone jammer when necessary in important places to ensure block CDMA.

6.The main case will be heat after working some time, do the long time working damage the machine?

A: Thank you for your chariness. This is a normal phenomena. We use metal main case to assist heat dissipation, the machine can work stedy for a long time. So the heat of main case can not damage the machine.

7.The range of action of mobile phone jammer?

A: This is depend on the place. Because the signal strength of every place is not the same, the shielding effectiveness is different. Usually the parameter of manufacturer reported is only to provide a reference, the specific shielding distance is depend on every place.

8.What phone can be blocked by the mobile phone jammer?

A: The mobile phone jammer of our company produce can block GSM/CDMA/PHS/3G phones. If customers have special requirement, we can add or cancel a certain frequency band.

9.Why does the shielding effectiveness is unstable?

A: When the signal from mobile phone jammer cross with that from the BTS of Mobile, CDMA and PHS (critical distance), because of the signal from the BTS of Mobile, CDMA and PHS have a certain margin, sometimes are strong and sometimes are weak (but the transmitted power of mobile phone jammer is stable), so it caused that the shielding effectivenessnear the critical distance is unstable. But take mobile phone jammer as center radiate around will have a stable shielding area. We suggest the agent calculate shielding distance take stable shielding area as the calculating standard.

10.What the differences between directional antenna and omnidirectional antenna?

A: Directional antenna and omnidirectional antenna using broadband technology design, apply to block the signal of GSM, CDMA, DCS and 3G mobile communication system, the only difference lies in angle and distance.