The personal website of Scott W Harden

Minimalist Radio Receiver

Now that my minimalist QRSS transmitter is mostly functional, I'm shifting gears toward building a minimalist receiver. These are some early tests, but I'm amazed I managed to hack something together that actually works! Once it's finished I'll post schematics. For now, here are some photos. This receiver is based upon an SA602 and although there *IS* an op-amp on the board, I actually bypassed it completely! The SA602 seems to put out enough juice to make my PC microphone jack happy, and those cheap op-amps are noisy anyway, so awesome! Go minimalism!

Here's the output from 7.040 MHz. Conditions are pretty bad right now, and I'm at my apartment using my crazy indoor antenna

Markdown source code last modified on January 18th, 2021
---
title: Minimalist Radio Receiver
date: 2010-06-09 23:42:00
tags: qrss, amateur radio, old
---

# Minimalist Radio Receiver

__Now that my minimalist QRSS transmitter is mostly functional, I'm shifting gears toward building a minimalist receiver.__ These are some early tests, but I'm amazed I managed to hack something together that actually works! Once it's finished I'll post schematics. For now, here are some photos. This receiver is based upon an SA602 and although there \*IS\* an op-amp on the board, I actually bypassed it completely! The SA602 seems to put out enough juice to make my PC microphone jack happy, and those cheap op-amps are noisy anyway, so awesome! Go minimalism!

<div class="text-center img-border img-medium">

[![](DSCN0832_thumb.jpg)](DSCN0832.jpg)

[![](DSCN0833_thumb.jpg)](DSCN0833.jpg)

</div>

__Here's the output from 7.040 MHz.__ Conditions are pretty bad right now, and I'm at my apartment using my crazy indoor antenna

<div class="text-center img-border img-medium">

[![](recvbig_thumb.jpg)](recvbig.jpg)

</div>