A technician bolts a BNC-fed antenna to a mast, runs a vibration sweep, and watches the received level flutter by a few tenths of a dB. Nothing has failed. The bayonet collar has simply backed off a fraction of a turn. Refit the same cable run with a TNC and the flutter disappears, because the threaded coupling keeps ...
READ MOREIf you are building a 5G small cell, a bench-test rack, or a satellite ground terminal, the connector at the end of the coaxial cable is usually the last item specified and the first one to cause trouble. A 2.4 mm plug will not mate with a 1.0 mm port, a 75 ohm BNC will not preserve a 50 ohm path, and an interface rat...
READ MOREA jumper comes off the bench, is offered up to a spectrum analyser port, and will not seat. Nothing is broken. One end is an SMA, the other a 2.4 mm; both are 50 Ω, both look like the same threaded barrel, and they are not intermateable. A coaxial connector types chart exists to stop that order before it is placed, by...
READ MORERF coaxial connectors are key nodes in high-frequency signal transmission, and their installation quality directly impacts the performance of the entire communication system. They are typically used to connect two different interface types, ensuring signal transmission between connectors of different standards or sizes. RF coaxial adapters primarily serve to change connection methods, convert interface types, or adapt to devices with different frequency and impedance requirements. Ningbo Hansen Communication Technology Co., Ltd. is a manufacturer specializing in the production, processing, and trading of communications components, with over 30 years of experience in RF coaxial connectors, adapters, and cable assemblies. The company has developed its own machining, electroplating, and assembly shops, along with a stable and reliable network of suppliers.
1. Pre-Installation Preparations
Environmental Control Requirements:
The installation environment should maintain a stable temperature of 15-30°C and a relative humidity of ≤60%. The work area cleanliness level must meet ISO Class 6 standards. The work surface must meet anti-static requirements, with a surface resistivity within the range of 1×10⁴-1×10⁶Ω.
Tools and Testing Equipment:
High-precision torque wrench (±0.1 N·m)
End-face inspection microscope (magnification ≥40X)
Network analyzer (frequency range covers the test band)
Professional cleaning kit (includes anhydrous ethanol, dust-free cloth, etc.)
Connector Quality Inspection: Use optical inspection equipment to inspect the connector end face to ensure scratch depth is ≤0.05mm and that there are no visible surface contaminants. Contact resistance should be ≤1mΩ, and impedance matching tolerance should be within ±1Ω.
2. RF Coaxial Adapter Maintenance Guide
Cleaning and Maintenance
Clean the connector monthly with anhydrous ethanol (purity ≥99.7%) and a dust-free cloth. Treat stubborn stains with a dedicated RF connector cleaner. Maintain a single-direction wipe when cleaning (do not wipe in a rotating motion).
Contact Inspection
Check the elastic recovery of the center pin weekly. Observe contact surface wear using a 10x magnifying glass. Measure contact resistance (should be ≤2mΩ).
Protective Measures
Install a dust cap (IP54 rating) when not in use for extended periods.
Store in an ambient humidity ≤60% RH. Avoid storage with organic solvents.
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