The Ericsson KRC 118 17/1 R3C FU12 21 is a telecommunications filter unit designed for use in Ericsson radio access network infrastructure and base station equipment. This module is responsible for filtering radio frequency (RF) signals within the transmission chain, ensuring that only the required frequency bands are transmitted or received while suppressing unwanted interference and signal noise. By maintaining signal purity and minimizing interference between frequency channels, the filter unit contributes to stable and efficient operation of cellular communication systems.The unit is built for integration into Ericsson base station hardware platforms used in mobile telecommunications networks. Its design supports reliable RF performance and compatibility with radio modules operating in standardized cellular frequency bands. The FU12 configuration indicates a specific filtering architecture engineered to meet strict telecom performance requirements.
Manufactured using high-quality electronic components and robust shielding, the module ensures consistent signal filtering under continuous operation and demanding environmental conditions typical for telecom infrastructure. The R3C hardware revision represents a specific production or design iteration optimized for stability and long operational life.
This filter unit plays an important role in maintaining signal quality, reducing cross-band interference, and supporting reliable wireless communication services within cellular base station systems deployed by network operators and telecom infrastructure providers.