| Portable station for QO-100 based on the AMSAT-DL transverter kit - DD1US |
| Portable station for QO-100 based on the AMSAT-DL transverter kit - DD1US http://www.dd1us.de/Downloads/Portable%20station%20for%20QO-100%20based%20on%20the%20AMSAT-DL%20transverter%20kit%202020-09-27%20English%20rev1.pdf |