Now for all of these antennas making your own can be based on many many guides out there. Some of them are really old. I gave you an example 20 years ago the first containers but as the physics doesn't change much over time or not at all, one could argue the guides are still valid and you find some of the best guides in the HAM radio world. Look up what you can find. Look what contacts you might be able to make in your country to HAM radio, your amateur radio people who have a long long tradition of building their own antennas and some of these you can just scale to the wavelengths, to the frequencies that you might be needing. HAM radio of course uses different ones than wi-fi especially with the arrival of ever higher frequencies in wi-fi but the principles of antenna building are exactly the same just in different scales so many many guides out there um keep an eye on the quality the green book wireless network in developing world collects some of the most trusted and proven guides but there's many many more out there and yeah this is three that we just presented here these guides minimum 15-20 years old but the antennas would work just the same today um a word on recycling parts there's all kinds of interesting ways in which you can find elements and combine them with things you build yourself to make interesting antennas one principle for example is to make a little feed and place it in the focal point of some kind of dish and that dish could be a real parable dish it could be a thing from an old tv dish it could be something you find in the kitchen a wok a grid walk as pictured here so a grid insert that you use for cooking you'll find different words for these things i've seen wok-fi kitchenware antennas pen tenors there are many many ways sometimes they're using usb dongles to put them into these structures that you build from from a dish so there's many ways of recycling parts to build quite performant antennas.

© Produced by Philip Smith and the Network Startup Resource Center, through the University of Oregon.

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