Managing Dual Band Radio Laboratory Testing under Chinese Regulatory Frameworks
SRRC approval for dual-band radios demands locked firmware power tables, local agent coordination, and strict host radiated spur compliance to avoid re-test delays.
6 GHz Band Restriction China
Meaning
Wireless spectrum regulations issued by the Ministry of Industry and Information Technology in China govern the permissible frequencies for local area networking equipment. The 6 GHz band restriction China designates the 6425 to 7125 MHz frequency range for licensed mobile communications, prohibiting license-exempt wireless access systems from operating in this band. This prevents the deployment of standard Wi-Fi 6E or Wi-Fi 7 devices that utilize the full 6 GHz spectrum in the Chinese domestic market.
Regulatory Baseline
Administrative decisions by national spectrum authorities assign the upper portions of the mid-band spectrum exclusively to international mobile telecommunications services. Equipment designed for global markets must disable support for these frequencies before entering local distribution channels. Failure to implement this block prevents the device from obtaining the necessary network access license.
Implementation Method
Hardware manufacturing processes ensure that the transmitter cannot be enabled on forbidden frequencies by any user or installer modification. Designers use permanent region coding or hard-coded transceiver tables to restrict access. Software changes or antenna swaps cannot bypass these factory-set limits.
Product Verification
Testing laboratories certified by the national authority measure the radiated emissions to confirm that the restricted bands remain silent during active scans. The module must refuse to transmit on any channel within the 6425 to 7125 MHz range under all test conditions.