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1. Wi-Fi basics. Before purchasing equipment to build a link, you should first calculate its energy balance. The necessary parameters include the output power of the transmitter, attenuation of connectors and cables, and gain of the antennas. The attenuation of an RF connector is usually about 0.5 dB. Summing up these values in an appropriate way, you’ll get the final result – the power of the signal at the input of the receiver. ...

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