国际业余无线电联盟 IARU 成员组织
CRAC
Design of display wall of the special zone of “Amateur Radio and Emergency Communications” at the 2nd Beijing International? Exhibition of Technology and Equipment for Desaster Relief and Emergency”, May 8-10, 2011 (total legnth of the wall is 79 meters)
Logo of CRAC, the Chinese Radio Amateurs Club
MAP of Amateur Radio Callsign Area in China
