How does a cell phone blocker work | cellular blockers work with comcast

75W High Power Cell Phone Jammer for 4G Wimax with Omni- directional Antenna

Product Details Product Description Ever thinking that a cell phone jammer can have the ability of jamming all cell phone signals, then come and know more about the 70W High Power Cell Phone Jammer for 4G Wimax with Omni-directional Antenna, you will believe. First, with AC adapter it can working continuously with a total output power of 70W. And different from other jammers, a big advantage is that every band frequency can select output power, which makes the jammer easier to use. Besides, it owns cooling fan inside so that the temperature won’t be high and won’t affect the normal working of it. What’s more, the jamming distance of this device can reach as far as 1000 meters, the output power is adjustable and all the TX frequencies cover downlink only, which makes your operation more convenient. Last but not the least is that the antenna of this one is Omni-directional Antenna, so it can jamming signal from all directions. But what you should pay attention is that this one can block the 4G Wimax but can’t block the 4G LTE signal. If you want the one to block the 4G LTE signal, you can choose the other type. Such kind of cell phone jammer can be used in places like prison, guard, invigilate meeting room, library and so on. And it is especially good at blocking 3G signal. If you want one just come here, contact us and pick up the high quality product to yourself at the best price. Specifications Affected Frequency Ranges: -CDMA:850-894MHz    -GSM:925-960MHz    -DCS/PCS:1805-1990MHz  -3G:2110-2170MHz-4G(Wimax):2345MHZ-2400 MHz Power supply:AC adapter(AC110/220V-DC27V) Shielding Radius:(20-100) meters@-75dBm still depends on the signal strength in given area. Total output power:70W Weight:19kg Size:34*13*27cm Product Notes Make sure to connect all the antennas firstly before the power supply is switched on. Please do not take off antenna when the machine is working. Antenna shall be used vertically to the ground for working more efficiently. Please don’t put the jammer in the bad Condition of over-wet,over-hot, high voltage and high magnetism. The jammer shall be installed in the position with good ventilation, and large-scale things shall be avoided to ensure the shielding effect.Accessories Power adaptor Antennas    Important Notes for Jamming Distance: The jamming distances we mentioned on website are for customer’s reference only. The actual jamming distance will be varied depending on the signal strength and the use location and if full charges, etc. Important Notes for Portable Jammers with No Cooling Fan: Do not use the jammer when it is charging, or it will burn the jammer as it has no built-in fan. If because of this factor due to the broken of the jammer, the customer will lose the authority of free repairation .

how does a cell phone blocker work

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