November 19, 2007

Building of a Softrock Software Defined Radio
DIY Hacks

  George from AmateurLogic.TV puts together a surface mount software defined radio kit in this episode. “George builds the Softrock Software Defined Radio. Jim introduces us to the International Beacon Project. Tommy demonstrates and explains all about the amazing Ham Radio Deluxe. Peter is back with a mountain top review of the Degen DE-1103 shortwave receiver.”

DIY Polygraph
Complex Hacks

12

Jordan Crittenden and Edwin Lai built this DIY Polygraph, their goal was to construct it for $50.00. “The basic design of the polygraph is shown in the diagram to the right. The four analog circuits: plethysmograph (pulse rate meter), GSR meter, breathing rate meter, and audio preamplifier, are attached to the first four pins of the Mega32 analog to digital converter (ADC). The polygraph can then be run in one