BEGIN:VCALENDAR PRODID:-//cotosaga.com//cotosaga//EN VERSION:2.0 CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME: X-WR-TIMEZONE:Asia/Tokyo X-WR-RELCALID:"" BEGIN:VTIMEZONE TZID:Japan BEGIN:STANDARD DTSTART:19390101T000000 TZOFFSETFROM:+0900 TZOFFSETTO:+0900 TZNAME:JST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;VALUE=DATE:20171113T000000DTEND;VALUE=DATE:20171113T000000DTSTAMP:20171113T114849ZUID:cotosaga.com/event/1587734CLASS:PUBLIC CREATED:20171113T114849ZDESCRIPTION:signal jammer for officeLAST-MODIFIED:20171113T114849ZLOCATION:SEQUENCE:0 SUMMARY:signal jammer for officeTRANSP:OPAQUE URL:http://cotosaga.com/event/1587734DESCRIPTION:http://www.jammer-buy.com/jammer-blocker-devices/c-1.html
I decided to install a signal jammer to make mobile phones not in the service area of the test site. The goal is to prevent cheating. There is a small earphone in the ear that USES the phone to explain the phenomenon from the outside. We covered facilities that introduced the same functionality. If the mobile phone to receive similar to the base station radio waves, radio waves, cannot communicate with the base station communication terminal will not in service. The phone's radio waves are said to have been blocked only during testing. I can't use my cell phone, but I can't use my cell phone, but I say it's because many people are using it at once, or because they're using it. In this case, attention is focused on devices that the phone cannot use. These devices will be installed where mobile phones can be harmful. We've launched a cell phone jammer, which makes it impossible to use cell phones around the ATM as part of a security transfer scam. We have been trying to call for the use of mobile phones. Even though the narrow "theme section" was introduced to the fire-suppression device, it was also because "we can't talk about how balance affects the user experience. The deterrent effect of convenience and crime is a big problem.

http://www.jammer-buy.com/gsm-jammer/c-26.html

4G mobile phone signal interference to detect the signal interference of the 4G mobile phone signal interference | 4G is, shielding the third generation mobile green signal interference blocking mobile phone's receiving electric field's sole, the base station does not affect the surrounding environment. Machine, eight outputs, at 2 to 50 m (base station as signal strength) CDMA (133 phone), GSM (900/1800 dual-band portable telephone), PHS (PHS phone) 3G, 4G, etc. Employ a variety of cellular signal shielding, completely shielding all mobile phone contact with the outside world. Interference of the mobile phone signal of a large power cell phone signal blocker.A GSM jammer can only be used with the necessary permission of a radio station to receive a permit (such as a concert hall, etc.) and a solicitor's qualification (a special radio engineer or above), such as certain conditions.
Cell phone signals interfere with the GPS jammer's cell phone, the cell towers around it, and it doesn't affect, the only shield that's received, and the third generation has a cell phone signal jammer. The range of 2-80m CDMA can range from (base phone) (base station signal intensity) to 7 output GSM (900/1800 dual-band portable telephone), PHS (PHS) 3G, signal block 4G and other mobile phones, which can completely block all mobile phone contact with the outside world.END:VEVENT END:VCALENDAR