How to choose a portable jammer?

Dojammer 2021-11-18

Before doing this, we need to understand what a cell phone jammer is. The mobile phone is almost everywhere, but it brings us both convenience and convenience. After all, not all mobile phone users know when to stop talking. At the moment, we need to use the cell phone jammer to protect a quiet environment. For example, in churches, libraries, meeting room, theater and other places.

Imagine a loud phone ringing next to you as you dine quietly. The phone rang while you were watching a good movie. At this point, you may need a cell phone signal jammer.

Their use in everyday life has many legal purposes. Testing of cellular security systems, cell phones, wireless products and GPS products are areas where technicians use them all the time to verify that their equipment is working without causing unnecessary calls to 911 centers. schools, theaters, cinemas, dormitories, auditoriums, restaurants, etc. can also use them legally. Of course, it goes without saying that it is now legal for prisons to use the device. The cell phone jammer, designed for prisons, will only work in prisons and will not affect commercial signals.

4 Bands GPS Jammer

There are many types of inexpensive cell phone blockers to choose from. Each jammer has its own range of special applications, you can choose products as needed. If you have any questions, please contact us, we will get back to you quickly.

Now let's start to select the jammer. First, you need to know what types of mobile jammers are present. According to the classification of the interference frequency band: 2G 3G 4G cell phone signal jammer. According to the classification by appearance: cell phone blocker, desktop cell phone blocker, mini type mobile jammer, hidden cell phone blocker.

Second, you need to know which frequency band you want to block, how much volume is needed, and what the range of blocking is.

The main frequency bands used in France in communications are:

GPS (Frequency: 1565-1880 MHz)
- CDMA 800 (Frequency: 850-894MHz)
- CDMA / GSM (Frequency: 850-960 MHz)
- GSM 900 (Frequency: 925-960 MHz)
- GSM 1800 (Frequency: 1805-1880 MHz)
- 3G (Frequency: 2110-2170 MHz)
- WiFi (Frequency: 2400-2485Mhz)
- 4G LTE (Frequency: 725-770 MHz / 790-825 MHz)
- 4G (Frequency: 2345-2400 MHz / 2620-2690 MHz)
- LoJack (Frequency: 167-175 MHz)
- DCS / PCS (Frequency: 1805-1990 MHz)
- Bluetooth (Frequency: 2400-2480MHz)

If you know the two points above, it will be easy for you to choose the right jamming device for you.

When can cell phone signal jammer come in handy? Will the mobile phone signal jammer cause damage to the mobile phone?