How many ways are there to block a signal?
Many exams and other departments require shielding devices to prevent communication equipment from contacting the outside world. This can better prevent cheating, so electronic devices that signal jammers are also emerging in endlessly. How much do you know about shielding tips?
1.Signal shielding instrument
A good shielding device can effectively block GSM (China Mobile, China Unicom), PHS (Telecom Telecommunications PHS), DCS (1800MHz), PCS (1900MHz), CDMA (China Unicom), SCDMA (China Netcom), all 3G, 4G , WiFi and other wireless signals, and can also block some intercoms according to customer needs, which can be said to be very good.
2. Signal shielding cabinet
Although the shielding cabinet can achieve better shielding effect. Nowadays, mobile phones are becoming more and more intelligent, and everything such as food, clothing, housing and transportation can be solved on mobile phones. We can no longer live without mobile phones. When we go out, mobile phones can solve a lot of our worries. Of course, everyone’s mobile phone will contain a lot of important information. When taking exams or in special places, you will want to block the signal. Sometimes cell phone signal blocker is a good choice, which can not only take care of the mobile phone, but also ensure the security of mobile phone information. Kill two birds with one stone, but the signal shielding cabinet has the disadvantages of high cost and inconvenience to carry.
When there are large-scale examinations or when there are too many people, the signal shielding cabinet is very impractical. The only choice is the signal shielding device, which is effective and economical. topsignaljammer is a good electronic technology company. It mainly produces shielding devices and other electronic equipment. With years of experience and light technical support, the big brand is worthy of trust.
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