How many times have you been interrupted or distracted by your phone in the past week? Do you find it difficult to focus on your work or studies when a notification pops up on your screen? Or, do you and your friends sometimes spend too much time chatting and not enough time hanging out? Whatever the case, mobile phones can be a real distraction. But with the right technology, you can block out your phone’s signal so that you’re free from notifications, calls, texts—and even from people trying to reach you in an emergency.
1.Select the type of shielding device
The shielding device is the most important part of your phone signal jammer. The right selection of shielding devices can ensure that your cell phone signal jammer works well in all circumstances. There are many different types of shielding devices, such as metal and carbon shields. The metal shield is the most common type and is the best choice for you if you want to find an effective cell phone signal blocker that can block all kinds of signals from phones or similar devices without affecting other equipment nearby.
2.Check the shielding radius
The shielding radius is the distance that the jamming effect will reach. Usually measured in meters, it depends on both your signal strength and the type of device you choose. If you’re planning to buy a cell phone signal jammer for your test room, make sure to do some research on this topic before making any purchases!
The third most important factor to consider is the power consumption, which is related to the shielding radius of portable cell phone jammer. Power consumption means how much energy this device needs when running. If you need a large shielding area, then it will consume more energy for its work, and you can use a power bank or rechargeable batteries to help with your testing environment. The system’s small size makes it convenient for carrying and using in places where there are no outlets nearby!
There are also some accessories you may need to buy. Some of them are:
A suitable antenna, if you want to jam the signal from a cell phone tower or on the ground plane of your building, you will need an omnidirectional antenna. If you have multiple cell phone signals that need to be jammed, then buy a directional antenna.
Power adapter, since most jammers do not have built-in power supplies and use batteries instead, so if your jammer doesn’t include one with it when bought don’t panic as they’re very easy to come by online or in stores like Best Buy™ or Staples®
At the time of purchase, we can use these four points to evaluate and compare.
What is the key frequency? There are many kinds of cell phone signal jammers, such as GSM jammer, CDMA jammer, WCDMA/3G/LTE 4G WiFi router and so on. They have different characteristics. For example: Jamming range, output power and battery life etc. Therefore you need to know what kind of cell phone signal jammers should you choose for your test room? The key frequency of mobile phones is 850 MHz to 2100 MHz for 2G network; 850-960MHz for 3G network; 1710-1990MHz for 4G network; 2400-2500MHz for GPS L1 band GPS L2 high-frequency band UHF radio waves (433MHZ) DECT cordless phones(868MHz), which can be used by all three bands with low power consumption requirements.”
In a word, we should pay more attention to the above four points when buying cell phone signal jammer. Some people might think that the shielding radius and power consumption problems can be solved after purchasing, but it is not possible to solve these two problems. We must ensure that the purchase of mobile phone shielding device has a suitable shielding radius and low power consumption.