Posted on 4th Dec 2015 @ 9:55 AM
The mobile phone signal jammer is able to jam all frequencies of cell phones,including 2G 3G 4G.It is a desktop design but not portable or handheld,you can install it anywhere you want.
On-Off key sixes in a corner where there also be a power port.Before to turn the device on ,you shall provide it a DC 12V or AC 220V (no worries,there will be a AC adapter goes with it ) power and make them connective.The whole outer casing is fulled with heat emission holes, and built inside a cooling systems to keep the mobile phone signal jammer an available working environment.So that it can work for a long time and never burn.Besides,there go with six pcs antennas, to cooperate with six indicator lights that six on the right side to help you distinguish what frequency working now.
Cell phone,no matter what the brand and manufacturer is ,as soon as its frequency included in CDMA(851MHz-894MHz),GSM(925MHz-960MHz),DCS(1805MHZ-1880MHz,PCS(1930MHz-1990MHz),3G(2110MHz-2185MHz),4G (LTE)725MHZ-785MHZ,4G (Wimax)2300MHZ-2410MHZ - it can not run away from the mobile phone signal jammer.And almost all frequencies have been included,so you can use the device to help you keep order in an examination,students can’t cheat and transfer answers to each other with mobile phones.
Turn on the signal jammer before start examinations,then the device to emits signals to jam mobile phones within a area of 2 to 40 meters.Jammers work in one of two ways. Some devices set their signal to the same frequency as pagers and mobile phones, cutting off communication between handsets and base stations. Others work as electronic filters that fool mobile phones into thinking there are no frequencies available to make or receive texts.