| Memberships | ||
| National Associations | ||
|
|
Union Schweizerischer Kurzwellen Amateure | # 9590 |
|
|
Deutscher Amateur Radio Club | # 3000029 |
 |
||
 |
American Radio Relay League | # 2000407373 |
| Telegraphy | ||
 |
Helvetia Telegraphy Club | # 177 |
 |
Arbeitsgemeinschaft CW | # 3148 |
 |
Marconi Club - Marconista | # 729 |
 |
North American QRP CW Club | # 0633 |
 |
Straight Key Century Club |
# 2902 |
| DX-Clubs | ||
 |
Swiss DX Foundation | |
 |
German DX Foundation | # 437 |
| Contest Groups | ||
 |
BCC - Bavarian Contest Club | |
 |
DRCG - DL-DX RTTY Contest Group | |
| Digital Modes Clubs | ||
 |
European PSK Club | # 0258 |
 |
Digital Modes Club |
# 3001 |
 |
30 Meter Digital Group (30DMG) |
# 3576 |
| QSL Mgr | ||
 |
QSL Manager`s Society | |
| Lightouses / Islands / WFF | ||
 |
ARLHS - Amateur Radio Lighthouse Society |
# 1589 |
 |
World Flora and Fauna |
# 152 |
