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Amateur radio, space technology and other geeky stuff by Alexandru Csete

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DIY

mcHF build status 2015.12.02

August 24, 2016December 2, 2015 by Alexandru Csete

Few weeks ago I have decided to resume building my mcHF kit. I have made good progress with the RF board and today I have tested the low-pass and band-pass filters.

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Categories mcHF Tags DIY, mcHF, SDR, transceiver

DIY remote kit for the IC-706 part 6: A simple audio server and client

August 23, 2016October 6, 2014 by Alexandru Csete

It has been a few weeks since my last update about the IC-706 remote rig project so here is a new one.

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Categories IC-706 Tags audio, codec, DIY, HF, IC-706, ICOM, Opus, radio, remote, TCP, transceiver

DIY remote kit for the IC-706 part 3: Keep-alive emulation

August 23, 2016September 3, 2014 by Alexandru Csete

Yesterday I have implemented emulation of keep-alive messages on server side. This means that the keep-alive messages sent by the front panel roughly every 100 ms are no longer sent over the network; instead, they are generated in the servers main loop with 150 ms interval.

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Categories IC-706 Tags DIY, HF, IC-706, ICOM, radio, remote, setup, transceiver

mcHF build status 2014.07.19

August 22, 2016July 20, 2014 by Alexandru Csete

Last night I mounted the LEDs, the electrolytic capacitors and the LCD panel. I am using the HY28B which is why the display doesn’t align with the push buttons.

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Categories mcHF Tags DIY, homebrew, mcHF, qrp, radio, SDR, transceiver

Getting into space when you’re broke

December 1, 2010 by Alexandru Csete

A very interesting and inspirational talk given by Kristian von Bengtson of Copenhagen Suborbitals at TEDx Copenghagen on November 30, 2010.

Categories Hacking Tags Copenhagen, DIY, exploration, open source, space, suborbitals

Do it yourself HF2V

February 13, 2019September 27, 2009 by Alexandru Csete

Often I receive emails from people asking for the dimensions of the HF2V elements because they want to build one themselves. Well, here are the dimensions for all the coils and capacitors. Good luck with your experiments!

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Categories HF2V Tags 160m, 30m, 40m, antenna, butternut, DIY, HF2V, vertical
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