| IARU |
International Amateur Radio Union |
| DARC |
Deutscher Amateur Radio Club |
| DOK C11 |
My local Radio Club |
| JAIG |
Japanese Amateurs in Germany |
| DL-QRP-AG |
The German QRP Community |
| DIG |
Diploma Interest Group |
| TEN-TEN |
For those who love the 10 m Band |
| EUDXF |
European DX Foundation |
| HSC |
High Speed Club (German Chapter) |
| QSL.NET |
The Host of this Home Page |
| QRZ |
The well known Amateur Radio Magazine |