| Geschichten über das "Dampfradio" | http://www.wabweb.net/radio/ |
| COTA Group Germany | http://www.cotagroup.org/cotagroup/ |
| World Castles Award | http://wcagroup.org/ |
| Diplom Sammler Waterkant DSW | http://dsw.mb4ham.de/ |
| Diplom Interessen Gruppe DIG | https://diplom-interessen-gruppe.info/ |
| Sun Spot Numbers | https://meteo.plus/sonne.php |
| Tropospheric Ducting Forecast (V/UHF) for NW Europe | http://www.dxinfocentre.com/tropo_nwe.html |
| DB0HB Link List | http://www.db0hb.de/index.php?option=com_content&view=article&id=57&Itemid=68 |
| ISS Fanclub | https://www.issfanclub.com/ |
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