Wednesday, March 25, 2015

QFH Antenna for Receiving Satellite Images Using RTL-SDR

There is an incredibly popular low-cost software defined radio, known as the RTL-SDR. I've had one of these for months, and haven't really done anything cool with it. Recently I've seen a lot of people on the rtl-sdr reddit building quadrifilar helix (QFH) antennas to receive images from satellites using automatic picture transmission (APT). I decided to try this over spring break.