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February 6, 2023

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Still alive

October 31, 2020 - by Joost

I’m still alive and doing ham radio stuff. But can’t find the time or motivation to write it all down in this blog. So a small summary so far : …

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Ham Radio / Programming / Projects

Designing and building a Manned Beacon or MEPT, part 1 of many

February 6, 2010April 6, 2016 - by Joost

I came acros the site of IK0VVE with a wonderfull description of a MEPT. MEPT stands for Manned Experimental Propagation Transmitter and is usually very low power. He uses a crystal …

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Antennas / Projects

Build a simple magnetic loop antenna.

February 7, 2009April 6, 2016 - by Joost

 This article is a reprint from my original article published in 2004. I don’t use the antenna anymore (collecting dust in the basement) but the article will stay here for …

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Antennas / Projects

Build a lowcost yagi antenna for PMR446

February 6, 2009April 6, 2016 - by Joost

This post is taken from my old website. I’m still dismantling that site. What is PMR446 anyway ? PMR446 stands for Personal Mobile Radio and is a license free radio …

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Digital Mode / Projects

Avoid uncontrolled transmissions with this simple modification on your radio interface

February 5, 2009April 6, 2016 - by Joost

Ham radio operators interested digital modes will often use these computer interfaces to automate CW contacts (send morse code from the PC), use the PC soundcard for RTTY and control …

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Joost ON3JTFollow

Average Joe in biking, running, electronics, programming, ham radio ON3JT, IT, blogging and F1 lover https://t.co/pFOt8883nV

Joost ON3JT
luytenjJoost ON3JT@luytenj·
18 Jan

It crashed. Need to debug the nodemcu...

Reply on Twitter 1615835726243057665Retweet on Twitter 1615835726243057665Like on Twitter 16158357262430576651Twitter 1615835726243057665
luytenjJoost ON3JT@luytenj·
29 Dec

My first decoded telemetry from #greencube. Simple setup : RTL V3 + X50 antenna. Just two decoded strings. Need better antenna but hey it worked.

Reply on Twitter 1608365715064586241Retweet on Twitter 1608365715064586241Like on Twitter 16083657150645862413Twitter 1608365715064586241
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Lastest posts

  • The last High Altitude Balloon this year. December 31, 2021
  • ISS SSTV Transmissions December 2021 December 31, 2021
  • Synology Drive Client sync problem November 15, 2020
  • Still alive October 31, 2020
  • Reception test with radiosonde antenna April 13, 2020

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