Amazing work by Jon Dawson at 101 Things and others to bring a very capable SDR to the RaspberryPi PICO.
I've forked the project here and had claude write some very useful documentation on the user interface operation.
It sounds great:
You might notice that my display is offset two pixels to the left. The solution is to select the OLED type of SH1106 instead of the default SSD1306. (It seems they are frequently substituted).
Jon's blog post here is very good reading.
If you're interested in building one of these, I'm not aware of anyone selling these boards - you might try contacting the Manly Warringah Radio Society or it's pretty easy and low cost to upload the gerbers from VK2ARH (he designed this board) git repository and get them made.
I've recently ordered Jon Dawson's board from JLCPCB and the price for 5 was US$5 + shipping. (Shipping costs significantly more than boards).
4 comments:
Jon's article is a serious piece of work. It's going to take a few reads to get it. A lot to think about.
Using the RPi PIOs as a dual phase clock generator that is useable in a Rx is an achievement. And op amps are getting so good these days you can use them as broadband HF amps (not sure about the noise but clearly it works well enough).
Are these available for sale? Where did you get yours from?
DavidT kindly gave me a board. I think he had a few fabricated. I've just ordered some boards from the original article by Jon - it's simpler but I think a bit easier for tinkering with.
Very nice Peter, I would love to build this, is there a place I could buy a PCB?
Ahh right, now I remember. Good job populating all those fiddly bits. Claude cant do that yet (at least, not at home)...
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