G0NQE’s Acorn SDR receiver kit

June 6, 2011 | Amateur Radio | By: Mark VandeWettering

Ever on the lookout for software defined radio designs, I was pleased to see G0NQE’s simple receiver design this morning. He offers a kit, but also offers the bare PCB board, and puts the schematic and parts list on his website. Very cool. It’s pretty much a textbook Tayloe-style switching detector, which is implemented entirely with common through-hole type chips. It uses a crystal oscillator which can be switched between a 14.7456 Mhz and a 15.0Mhz crystal, for reception centered on 3.68 and 3.75 Mhz. It uses the 74HC4052 as the analog switch, driven in quadrature and feeding an NE5532 op amp to provide the I/Q signals.

Check it out: g0nqe-acorn,sdr,receiver,kit.

Comments

Comment from Robert Kelley AC7KE
Time 10/13/2011 at 11:35 am

I think we met at a certain annual event near Santa Cruz.

Pleased to know others are interested in cool radio stuff like Tayloe mixers.

Pleased also to encounter BrainWagon…

Comment from John M Cliff
Time 10/3/2015 at 11:45 pm

Hi Mark, You must know the old saying. “From little acorns grow large oak trees”. Mine now thinks it’s a Racal RA17. Joking, but the G0NQE’s ACORN SDR is a great little radio when used with an appropriate antenna and tuner.
Great website Mark. Keep up the good work. My regards to your son as an Ex.serviceman myself.
73 de John G0WXU