All QSLs will be send via bureau.
Adress for direct is: Czech radioclub
CZ-11327 Praha 1
After several years activity with OL4HQ callsign we decided to change number
in prefix in compilance to current year. Please note this year we will be
active during IARU HF World Championship as OL2HQ on each band and mode.
CZECH RADIO CLUB IARU