Before starting a site survey, we must first know:, Outdoor Wi-Fi commonly operates on:, Directional antennas are mainly used for:, The relationship between gain and beam width is:, Fresnel Zone should be:......, If full clearance is not possible, minimum acceptable F1 clearance is:.......% , Higher antenna gain means:.............. beam & ...........signal., The diameter of Fresnel Zone depends on: ........, Sector antenna degree ....., ......., ........., ........, what is the signal to noise ratio .

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