This project is about creation of affordable and easy-to-manufacture prototypes of PCBs which are used to expand the capabilities of existing low-cost SDR receivers based on RTL2832U chip.

A 5.1-channel, analog audio processor based on PT2322 and Arduino Nano

Set of MATLAB scripts to manage an optical recirculating loop

A Breadboard for the PE4312

Python routines for submm instrumentation astronomy at the University of Colorado Boulder

Resistive RF Attenuator pad calculator

A simple resistive divider network to dampen the output of an audio amplifier 16db.

Controller for audio power amplifier. Features: power control with soft start, SPI multi channel volume control.