What Kind of Amateur Radio and Space Technology Content Does Alexandru Csete Share?

Updated

Alexandru Csete's OZ9AEC website is a personal technical blog focused on amateur radio, space technology, and related engineering projects. The content centers on his hands-on work with the Copenhagen Suborbitals Nexø II rocket—specifically onboard cameras, video transmitters, and avionics—shared through conference presentations, technical write-ups, and links to video recordings. If you're looking for practical insight into using commercial off-the-shelf (COTS) hardware and open-source software for space-related radio and video systems, this site is a relevant starting point.

Main Project Focus: Nexø II Rocket Cameras and Video

The most prominent topic on the site is the "rocketcam" project—onboard cameras and the DVB-S2 video transmitter used on the Copenhagen Suborbitals Nexø II rocket. Posts in this thread include:

  • Video received from the Nexø II rocket cameras (September 8, 2018) — introduces the rocketcam project and the received video.
  • Raw footage from the Nexø II rocket cameras (September 8, 2018) — links to unedited footage on the author's YouTube channel.
  • Nexø II rocket camera performance (September 9, 2018) — a quantitative analysis of downlink performance based on processed telemetry data, complementing the earlier qualitative video.
  • Nexø II debriefing: Onboard cameras & the video transmitter (October 7, 2018) — a recorded presentation from the Copenhagen Suborbitals debriefing event.

Conference and Workshop Presentations

The site regularly shares recordings of talks given at amateur radio and open-source space events:

Presentation Event Date
Live video from space using COTS hardware and open source software 2nd Open Source Cubesat Workshop (OSCW 2018) November 21, 2018
Avionics in the Copenhagen Suborbitals Nexø II rocket (with Peter Scott, OZ2ABA) 2018 AMSAT UK colloquium November 21, 2018

These presentations cover the radios and the DVB-S2 video transmitter used on the rocket, and the recordings are hosted on YouTube via Libre Space Foundation, AMSAT UK, and BATC.

How the Content Is Organized

Posts are categorized and tagged so you can follow specific threads:

  • Categories: DVB (digital video broadcasting) is the main category for the rocket video work.
  • Tags: copsub (Copenhagen Suborbitals), rocketcam, DVB, SDR (software-defined radio), video, presentation, avionics, AMSAT.

This tagging makes it easy to pull together all posts about the rocket camera system or all presentation recordings.

What to Expect and What Not To

The site is a personal project log rather than a tutorial site or product page. Content is shared as presentation recordings, video links, and short technical posts with performance observations. There are no pricing signals or commercial offerings indicated in the available material. If your interest is in how amateur radio techniques and open-source tools were applied to a real suborbital rocket's video and avionics systems, the Nexø II posts and the two 2018 presentations are the core resources to start with.