HB9HQ was used for the very first time in IARU HF World Championship 2006.

HB9HQ is reserved for IARU HF World Championships
HB9A may be used in all other contests during the year

Inquiries about using the call(s) have to be sent to:

HB9DRS (hb9drs@uska.ch) or in his absence to
HB9JOE (hb9joe@uska.ch).

All logs (ADIF format) to HB9JOE

HB9A, HB9HQ, HB9O and HB9WARD are USKA HQ calls. Look for more informations about USKA under http://www.uska.ch