Author Archives: jboone
Simple Chronulator Case Design
Taking a cue from Adam’s Chronulator case design, I experimented yesterday with a friend’s laser cutter, to make a Chronulator case that’s simple and easy for customers to assemble. Here’s the result: What Chronulator case designs would you like to … Continue reading
Somebody Set Up Us The Bombulator!
Willamette Week features items from ADX Portland’s upcoming holiday gift sale. Continue reading
Chronulator Review in Make Magazine’s Ultimate Kit Guide
Make: Magazine’s Ultimate Kit Guide is out, and the Chronulator kit received a great review. Continue reading
ShareBrained at ADX Portland’s GIFTED Marketplace
Buy a Chronulator at ADX Portland’s GIFTED Maker’s Marketplace, December 17th from 11am to 5pm. Continue reading
Software Radio Baseband Digitizer PCB
I’m plugging away at building an inexpensive, high-bandwidth software-defined radio receiver. I built a bunch of PLL+VCO boards, filter boards, and quadrature mixer boards. But I still don’t have a good ADC to sample the signals I’m receiving. No longer! … Continue reading
ADF4350 VCO+PLL Breakout Board
I’m a software radio freak. When I first heard about the Analog Devices ADF4350, a PLL+VCO that can tune between 137.5 and 4400 MHz, I was obsessed with getting one and building it into my projects. Naturally, the first step … Continue reading
Track The ISS Yourself Using PyEphem
How to track the International Space Station with twenty lines of Python code. Continue reading
Chronulator code now on GitHub
ShareBrained projects are now on GitHub. ShareBrained sharing, properly now! Continue reading
Signals from Space! (part 3)
In the last two parts, I used my homebrew software-defined radio to receive weather image signals from the NOAA-19 satellite and spent some time trying to calculate the satellite’s speed using frequency shift measurements. This time around, I’m going to … Continue reading
Signals from Space! (part 2, and a Chronulator contest)
Quick recap: In part 1, I captured weather satellite signals with my software-defined radio prototype, using the audio input on my laptop. So, what can be done with these captured signals? The first thing I did after recording the NOAA-19 … Continue reading
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