User blogs

What’s a WiFi jammer?

A WiFi blocker is just one of the many tools that people can use to cut off channels of communication. There are other types of “jammers,” such as radio and cell phone jammers, which help to stop communication over radios and cellular devices. WiFi jammer can help you stop your WiFi from being used by devices nearby.

There are many different models of WiFi blockers with different levels of strength and various features. Choosing the right model means understanding how WiFi blockers and their features work. You’ll also need to understand how WiFi works so that you can calibrate the tool correctly.

Jammers, including portable wifi jammer, have been used by military and law enforcement for years. They are great tools for cutting off communications that adversaries are using to speak amongst each other or gain access to resources. They can also be used to interfere with and defuse bombs, which has been a life-saving function many times over.

How to Block WiFi?

As with all jammers, wifi singal jammer work by projecting out the same radio waves as the devices that you are trying to jam. In the case of jamming WiFi, you’ll want to set your jamming device to the same frequency as your WiFi router.

Blocking WiFi can be tricky, though, because routers typically are set to automatically find the best channel of communication with devices. They are able to switch between frequencies to find the least crowded one, keeping your internet speed at a satisfying level. As a result, a WiFi blocker must be prepared to block more than one frequency, or you’ll need to know how to manually set your router. 

How to Buy a WiFi Jammer?

Because some WiFi routers have more advanced features, you'll want to review your router's settings before buying a jammer. Basic router models may only have one or two settings to choose from, while others may give you more control.

The basic rule is to buy a WiFi jammer that can interfere with the exact frequency your WiFi router uses to communicate with your device. To do this, you need to check exactly which channels your router is capable of, and then buy a jammer that can interfere with at least one of them.

1. The area used. The shielding range of the wifi signal jammer is based on the power of the jammer. If it is tested in the field, the shielding range is different according to the strength of the local environmental signal. For example, the weak shielding range of the indoor signal is large, and there are GSM jammer base stations for outdoor use accessories. Then the GSM signal is close to the outdoor shielding range!

2, the size of the power. As we all know, 2G, 3G, 4G and 5G: Before buying, you need to know which signals you want to block. Ordinary mobile phone signals (2345G) can be selectively blocked. If you only block 23G or only 34G, this It can be adjusted before leaving the factory, and there are 2.4GWIFI, 5.8GWIFI and other frequency bands. Generally, ordinary signals can be quickly shielded.

3, the frequency range. Shielded frequency bands: CDMA800, GSM900, SCDMA1800, DCS1800, PHS1900