It has a radio format of music and talk in Vietnamese and Korean, serving San Jose and the Santa Clara Valley.
[4] Later that month, KZSJ began broadcasting with a Regional Mexican music format that played genres including banda and ranchera as part of the Z-Spanish Radio Network operated by Redwood City entrepreneur Amador Bustos.
[4] In March 1999, KZSJ entered a local marketing agreement (LMA) with Quê Hương Inc. and changed to a Vietnamese language format.
[14] In September 2003, three relatives of dissident Thadeus Nguyễn Văn Lý were charged by Vietnamese officials for corresponding with Quê Hương Radio and the San Jose–based Commission for Religious Liberty in Vietnam.
[15][16] Beginning around 2014, KZSJ began broadcasting Korean-language programming on weekday mornings from Santa Clara-based Hanmi Radio.