This category contains all posts regarding other projects not directly related to radio but still useful and/or fun to build.
Geocaching is a popular hobby here in The Netherlands. Since my wife and I search for these caches from time to time, the idea came to me to build a cache myself, one that challenges geocachers to listen and decode morse code. This article describes how I built it.
— more →
Almost every nerd is a fan of automation. So whenever we find a repetitive job, we think of a solution to automate it. Since I’m both into automation and amateur radio, I was thinking on automating one of my straight morse keys, in a bit unusual way, by building a mechanical hand that operates the key.
— more →
Time… For some reason we tend to stick to an ancient system which has no logic at all. Let’s be honest: if we would invent a new time system nowadays, it would probably not have 7 days in a week, 24 hours in a day and 60 minutes per hour. It would be something decimal, like all other units in the metric system. So it’s about time to get rid of this outdated system and switch over to decimal time, by building your own Decimal Time clock!
— more →
During the summer season bats fly around almost every day in the twilight. I spot them in the evening, when they fly along our house and hunt for small flying insects, mostly mosquitoes and flies. Their soundless air show is a joy to watch.
— more →![[Image]](https://www.pa3hcm.nl/wp-content/uploads/2014/06/20140615_154348-e1402843710522.jpg)
Inside view of my stereo to mono converter.