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perfectjammer
First of all, GSM is the basic network band for mobile phone voice communication and SMS services. As we all know, improper use of mobile phones is very serious, the use of mobile phones in public places will have a great noise impact on others.
https://www.perfectjammer.com/gps-blockers-jammers.html
We need to understand our needs to buy a gsm scrambler. For example, in addition to the gsm network, we need to shield the signal type. Is it necessary to shield the 3G and 4G network frequency bands. In this way, we can buy a cell phone blocker that blocks all cell phone signals.
https://www.perfectjammer.com/wireless-wifi-bluetooth-jammers.html
Today, 4G or 3G phones and networks are common, and there are many machines and devices that use GSM networks to connect to the Internet, and these devices have a long service life. GSM networks are inexpensive and cover a wide range, so many "device-to-device" network applications use GSM networks, including alarm systems, vending machines, and transportation vehicle management.
https://www.perfectjammer.com/
Russia’s latest technology will be used in a wide range of fields (mainly in the field of military defense), which will greatly improve its air defense capabilities. In addition, it will be used for other monitoring applications, such as drone rescue, which will become an important research site. So far, the development and widespread application of unmanned aerial vehicles have made it very important.
https://www.perfectjammer.com/all-gsm-3g-jammers-blockers.html
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No.6 立花宗茂
20/07/23 18:02:50
長々と書いてあるけど、質問がなんなのかわからなかった。
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No.5 豊臣秀吉
20/07/23 17:56:46
2 cell jammer
should be
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No.4 尼子経久
20/07/23 15:40:41
分かんない・・・日本語で！
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No.3 富士山
20/07/23 15:17:22
日本語で
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No.2 滝川一益
20/07/23 14:58:11
5 high power jammer
maybe
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No.1 足軽（旗指）
20/07/23 14:50:20
なんで急に3G? 3Gってまだあるの？
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