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Aerodynes
12 followers -
Flying objects, Bespoke Electronics
Flying objects, Bespoke Electronics

12 followers
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Aerodynes's posts

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After a bit more than a week of "maintenance mode", the new version of Aerodynes just went online. Major overhaul of my site which is now part blog, part projects/portfolio. I am very much looking forward to getting your comments, both on looks and on contents.

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I received the new Beaglebone audio cape from CircuitCo this week, and wanted to share my experience, since documentation for this board is really not very good. Hope this will be useful for you! The BBB Audio Cape version B1 This is a revision of the…

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… or rather UNUN: just built a tiny ‘peanut balun’ based on the earchi.org design that can be found on their site: this is a 9:1 transformer that makes it easier to drive an end-fed wire at the end of a coax. Add a 30′ or so wire, and in my experience,…

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I bet you didn't expect this could be done in Javascript - at least this was new to me. Opens tons of perspectives!

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Two months or so ago, the kids and I bought a few bits and pieces at www.adafruit.com to build small LED badges. They had been staying in their box since then, but I eventually got to it with my youngest this Sunday afternoon. The idea was to create…

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This is a test and review of the new version of the FriedCircuits USB tester and backpack. If you read my previous articles on the backpack and its extensions, you already know that I am a big fan of this … Continue reading →

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One of the really useful tools you can have as a Ham is an antenna analyser, which enables you to understand better how your antennas and overall RF installation are behaving/performing at various frequencies. At the very least, an antenna … Continue…

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This afternoon, I did a quick test of the “matchbox” end fed antenna from the Honolulu Emergency Amateur Radio Club, up on a hill,  good receptions reports using only 5 to 7 watts, as you can see below – the … Continue reading →

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Collection of various digital modes – images for now, maybe audio later. The idea here is to take waterfall screenshots in ‘real life’ environments, on a noisy waterfall, to serve as a reference on the software I use most often, … Continue reading →

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Cheap sound cards

A quick example of what a bad sound card does when used as an SDR I/Q input: the waterfall below is very symptomatic. I used a cheap USB sound card bought for a few bucks on Amazon. It works perfectly … Continue reading →
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