30m Subharmonic I/Q-SDR Receiver

Over on NT7S’s Ripples in the Ether blog, he presents a link to a project by Joachim, DL1GSJ, a very nifty little SDR designed to operate near the 30m QRSS watering hole frequncy. It uses pair of subharmonic mixers, whose operation I admit I don’t completely understand, but I’m bookmarking the circuit for later consumption.

de draaggolf     ~~~~~: 30m Subharmonic I/Q-SDR Receiver.