TNC M CLAMP for LMR400/RG8/RG11/RG213/RG393 Cable

Description

The TNC (Threaded Neill-Concelman) series is a ruggedized version of the BNC interface, replacing the bayonet mount with a secure 7/16-28 threaded coupling to ensure constant electrical contact in high-vibration environments. This male (plug) variant is specialized for the 10mm (0.400″) heavy-duty cable class, providing a robust termination solution for ultra-low-loss LMR400, military-spec RG213, and high-temperature RG393. It is designed for applications where mechanical security and high power handling are paramount.

Unlike crimp-style connectors, the clamp termination design utilizes a high-torque compression nut and internal gaskets to secure the cable’s outer conductor and braid. This allows for a professional, airtight assembly using standard hand tools, making it the superior choice for field repairs, remote tower sites, and custom-length cable assemblies where heavy-duty crimping equipment is unavailable. Manufactured with a reinforced nickel-plated brass body and premium PTFE (Teflon) insulation, it delivers stable 50-Ohm impedance and low VSWR up to 11 GHz.

Key Technical Advantages

• Field-Serviceable Clamp Design: Enables high-quality, repeatable terminations without specialized crimping tools, facilitating rapid onsite maintenance and shipboard RF repairs.

• Large-Diameter Precision Match: Specifically calibrated for 0.400-inch to 0.430-inch OD cables, ensuring an optimized electrical path and maximum mechanical stability for heavy-gauge lines.

• Vibration-Proof Threaded Interface: The threaded mechanism ensures a secure, locked connection that prevents signal intermittent issues in high-shock aerospace or industrial mobile applications.

• Superior Environmental Protection: The integrated compression seal and internal gaskets provide an airtight barrier against moisture, dust, and salt spray, essential for maritime and outdoor antenna systems.

• High-Power Handling: Precision-machined to support the high wattage and low attenuation characteristics of LMR400 and RG213 over long-distance cable runs.

Key Features

• Interface Type: TNC Male (Plug) with standard 7/16-28 threaded coupling.

• Termination Method: Clamp (Outer Conductor) / Solder (Center Pin).

• Cable Compatibility: Optimized for LMR400, RG8, RG11, RG213, and RG393 coaxial cables.

• Premium Construction: Features a nickel-plated brass body and high-performance PTFE dielectric.

• Common Application: Maritime radio systems, base station infrastructure, tactical field equipment, and high-power transceivers.

Technical Summary