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Amplitude Modulation tutorial + bonus circuit
posted March 8 2011 21:50.48 by Giorgos Lazaridis

I'm not sure where i found this video, nor do i remember since when it is hidden in my bookmarks, but it is simply brilliant! In this video, youtube user afrotechmods explains how...

[Link: afrotechmods]
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Tags: fm/am   electronic project   diy   music   antenna   wireless   inventions   theory/tutorial   history   audio   how it works   

An antenna made of... water!
posted January 10 2011 20:58.47 by Giorgos Lazaridis

SPAWAR Systems Center Pacific has developed a technology that uses the magnetic induction properties of salt in sea water to create UHF/VHF/HF antenna. The purpose of this research...

[Via: southgatearc]    [Link: SSC]
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Tags: chemistry   antenna   inventions   research   commercial   

Do you know the cohere [Wireless energy]
posted December 22 2010 19:25.43 by Giorgos Lazaridis

The coherer was a primitive form of radio signal detector, invented by scientist Edouard Branly around 1890. It is nothing more than two electrodes...

[Link: gilbondfac]
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Tags: electronic project   physics   chemistry   diy   antenna   wireless   inventions   experiments   science   

WI-Radar Project
posted June 11 2010 19:34.42

AiFiLTr0 was frustrated by the wimax signal quality, so he went off making a good wimax antenna. He ended up using a biquad antenna, tuned for WiMax, This was easy but who was going to position it? The servo from a flatbed scanner gave the solution and now the wi-radar is born. The sources and PCB layouts will be posted here soon so stay tuned.

[Link: necromant]
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Tags: crazy hack   electronic project   diy   rc servo   computer peripheral hacks   antenna   microcontroller   wireless   

Shortwave Converter
posted May 19 2010 11:47.33

TheGreatBunghole16 shows a simple way on receiving SW stations in an AM radio. It has a rather long antenna but what matters is that it works.

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Tags: diy   fm/am   antenna   

D.I.Y cheap Wlan antenna
posted April 10 2010 9:00.17

Youtuber hunainmadi makes an 6x more powerfull antenna for his wlan needs, the whole cost is under 10$ and as you can see in the video works like a charm.

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Tags: wlan   antenna   

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