[Leigh] is a HAM operator (you may know him as wa5znu). He is familiar with a signal visualization tool called a waterfall which plots signal strength and frequency over time. He wanted to build hi… ...

Waterfall Signal Visualizer From Arduino And Cellphone LCD July 11, 2011 by Mike Szczys 12 Comments [Leigh] is a HAM operator (you may know him as wa5znu).