Is it possible to block internet (3g/4g) service only, not general phone signal, within a building?
Is it possible to block internet (3g/4g) service only, not general phone signal, within a building?
Hello, NickBottem! I’ve understood your problem and I can tell you that we at Jammer-Store have a proper solution for you. As long as you need to block a 4G and 3G only, the device must be configurable. Also, we’d recommend you to use desktop devices in buildings, because they have bigger jamming radius and their signals are good at penetrating walls. So, the best solution here will be to use a desktop, adjustable mobile Internet jammer RCJ40-D. The new configuration of the device has appeared recently. Now it is able to block GSM, 3G and 4G. In your case, you will have to turn the GSM antennas off, so mobile communications won’t be disrupted. It will be still possible to make phone calls and send or receive SMS. The correspondence between frequencies and antennas is described at the users manual, that will be shipped with the device. By, the way, we’ve had a couple of questions about using cell phone blockers at schools. RCJ40-D has 40 meters (50 feet) working range and the disruptive signal penetrates walls perfectly. Unfortunately, we can not provide you with the device, that has larger working range. But we may recommend you a portable device with the same frequencies support, it is G5 cell phone blocker. It supports GSM, CDMA, 3G and 4G, and if you’d like to block 3G and 4G only, you will have to turn of the corresponding DIP switches. Thank you for your question, I hope, I’ve managed to help.

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