I found 2 addresses for BA4RF. QRZ.com lists David Chen 21-703 Fuli Shanzhuang Nanjing, Jiangsu 210007 China Buckmaster lists the same address but with a zip code of 210018. His Web site www.4hams.net lists David Chen Lanyuan 28-7-45 Nanjing 210018 China Has anyone used either of these addresses with success? Thanks, Don WB9NMN