Our Picks for Best 2. GHz and 5 GHz Antennas for Wi. Fi Dual Band. It’s worth pointing out that increase in gain comes with increase in directionality. You can’t get more energy out then you put in, so when you focus energy in a given direction you are reducing the energy focused (or received from) other directions. The simpler co- linear antennas will give a radiation pattern that more and more resembles a squashed donut the longer and higher gain the antenna is. If your other station is outside the radiation pattern then it will see a weaker signal. This becomes relevant when choosing an antenna for general use in your house where your remote stations are walking around upstairs and downstairs (quite often in someone’s pocket or wherever they happen to sit down to use it). The parabolic and plate antennae are great for point to point communication where the direction to the remote station is fixed. A parabolic antenna could be deployed at either or both ends of the link. ![]() ![]()
For example RAYNET use this setup to provide Wi. Fi access to the mountain tops of the Yorkshire Three Peaks to allow real time reporting of race progress in the annual fell race. The setup here is temporarily placed masts with plate antennae on the hill tops with a second link down into the valley to the base station. The distance is about 8 miles. Alignment is quite critical. ![]() ![]() Monitor your home, business and property from anywhere in the world! The White ZN3-AM/FM medium duty AM and FM radio receive antenna is specifically designed for mounting to the bull bar of a truck, 4WD off-road vehicle or ute.
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November 2017
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