This is the type of crowd that’s famous for building their own test equipment. If you need a way to program a flash chip, don’t go out and buy one — you can just build one. Need a spectrum analyzer?

Designed for the iPad, iPod Touch, and iPhone, the WiPry-Combo dynamic power meter and spectrum analyzer accessory offers a modern touch interface; it turns an iOS device into an ultraportable ...

If you are a hacker, you might consider ham radio operators as innovative. Most people, however, just see them as cheap. So it is no surprise that hams like [jmharvey] will build an antenna analyzer ...