German Amateur Radio Club
www.darc.de
(german language)
Local Club C25 – Erding
www.ov-erding.de
(german language)
Next Generation DX
www.next-generation-dx.com
QRZ
Callsign database
www.qrz.com
QRP-Labs
Transceivers, WSPR, GPS, Filters, …
www.qrp-labs.com
Smart Radio Concepts
Charly 25 SDR Transceiver
www.smartradioconcepts.com
(german language)
GQRP Club
Low Power Radio Club
www.gqrp.com
AGCW
Activity Group CW (Telegraphy)
www.agcw.de
(german language)
SKCC
Straight Key Century Club
www.skccgroup.com