GB/T 21021.4-2021
ActiveIntermodulation level measurement for passive RF and microwave devices—Part 4: Measurement of passive intermodulation in coaxial cables
无源射频和微波元器件的互调电平测量 第4部分：同轴电缆的无源互调测量
Application Summary AI generated
This standard specifies the test methods and requirements for measuring passive intermodulation (PIM) levels in coaxial cables used in RF and microwave systems. It is applied in the telecommunications industry for quality assurance of cable assemblies in base stations, antennas, and other high-frequency infrastructure where low PIM is critical to signal integrity. The standard ensures consistent measurement procedures for manufacturers and network operators to validate cable performance in 4G/5G and other wireless communication networks.
Related Standards
GB/T 11313.33-2001
Radio-frequency connectors--Part 33:Sectional specification for series BMA r.f.connectors
GB/T 17737.3-2001
Radio frequency cables--Part 3:Sectional specification for coaxial cables for local area networks
GB/T 17737.2-2000
Radio-frequency cables--Part 2:Sectional specification for semi-rigid radio-frequency and coaxial cables with polytetrafluoroethylene(PTFE) insulation
GB/T 15886-1995
R.F. coaxial connectors， type C
GB/T 15888-1995
R.F. coaxial connectors， type UHF
GB/T 15158-1994
Series and style of connectors for radio and associated sound equipment
GB/T 15212-1994
Application of connectors for broadcastand similar sound system
GB/T 14313-1993
Rigid precision coaxial lines and their associated precision connectors， Generic specification of
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.