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01 oct , 2017 1546

The article describes how to quickly install and configure your surveillance system from the company Kroks, and quickly set up the DVR and the IP cameras with PoE.

13 feb , 2016 5304

Consideration of Fresnel zones are required when installing antennas for amplifying cell phone signal, 3G signal, 4G, LTE, Wi-Fi.
Fresnel zone is alternating in the space of the maxima and minima of the signal at the point of reception, which arise due to radio interference.

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