It’s been a while since I’ve posted one of these. I understand that things have been fairly quiet over here in the last few months, so I wanted to let you all know that I’m not dead yet. I’ve actually been working on Etherkit a fair amount in the background, and that has been eating… Read More Wideband Transmission #4
I’m pretty happy with the way that the CRX1 turned out, but understandably I haven’t sold a ton of them because 1) they are a SMT kit and 2) the tuning range is a bit limited. However, it’s a stable and sensitive CW receiver and it’s pretty fun to build as well. There are still PCBs… Read More CRX1 Group Builds?
I’ve had a good response to the Si5351A Breakout Board when it was posted on Hackaday last month. There have even been a few folks who went through the trouble of ordering PCBs from OSHPark so that they could build their own copies of the board for experimentation. One of them, Tom AK2B, even constructed… Read More Si5351A Breakout Board Update
I appreciate all of the interest in the Si5351A Breakout Board that I have available on OSHPark. I apologize for not having this available sooner, but here is a GitHub repository which hosts the KiCad design files and a PDF of the Breakout Board schematic, which lists the part numbers for the reference oscillator and… Read More Si5351A Breakout Board Documentation
A few exciting developments here on the Si5351 front. First off, I took the C code from my Si5351 library for avr-gcc and converted it to an Arduino/C++ library, which you can find here. It replicates the functionality in the avr-gcc library, but makes it quite a bit easier to rapidly implement designs. I’ve tested… Read More Si5351 Libraries and Breakout Board
The theme of this blog post is not lots of tedious work, but refinement leading to good results. First off, let’s talk about the funny I2C address on the parts which I received from Mouser. Since Digi-Key has no order minimums and very inexpensive shipping available (in the form of USPS First Class mail), I… Read More Si5351A Investigations Part 6
Perhaps it’s because the good weather has finally arrived here in Beaverton, but I seem to have become a bit more sanguine about my difficult situation with Etherkit, as described in my last post. It’s in my nature to be more of a realist (others might call it pessimism), sometimes trending to a bit of… Read More Bitter Taste
There are times when one must face the reality of situations, no matter how painful it may be, because the alternative is even more destructive in the long term. This is one of those times for me. As I’m sure you have noticed, blogging here has dried up, I have done a horrible job in… Read More Red Pill
I’m happy to report that the CRX1 40 meter receiver kit is now in full production and is available for purchase in the Etherkit Store for $40 (which includes all controls and connectors, you just add some wires and an enclosure). Allow me to quote from the product page: The CRX1 is a simple VXO-tuned… Read More The CRX1 Is Here!
Polyvaricons Now For Sale I’ve decided to try a small experiment and see if there’s any interest in selling a small selection of components that would be handy for RF experimenters. The first product I have up for sale (in limited quantities at this time) are four-packs of the somewhat-hard-to-find polyvaricon variable capacitor for only… Read More Wideband Transmission #3