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

Description

The TNC (Threaded Neill-Concelman) series is a ruggedized RF interface designed to maintain electrical continuity in environments prone to intense shock and vibration. This specialized Right Angle (RA) male variant is optimized 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. By orienting the cable exit at 90 degrees, it allows for streamlined cable routing in shallow enclosures and prevents mechanical stress on the bend radius of these thick, semi-rigid coaxial lines.

Unlike crimp versions, the clamp termination design utilizes a high-precision compression nut and internal gaskets to secure the cable’s outer conductor and braid. This enables a professional, airtight assembly using standard hand tools, making it the preferred choice for onsite antenna configuration, maritime repairs, and custom field-built assemblies for cellular backhaul. 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, supporting the high-power requirements of modern radio systems.

Key Technical Advantages

• 90° Space-Saving Profile: Ideal for installations behind equipment panels or inside compact mobile radio racks where large-diameter cables like LMR400 would exceed depth limits or cause kinking.

• Field-Serviceable Clamp Design: Enables high-quality termination without the need for specialized heavy-duty crimping tools, facilitating remote 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.

• Vibration-Proof Threaded Interface: The 7/16-28 threaded mechanism ensures a secure, locked connection that outperforms bayonet-style connectors in high-shock or outdoor applications.

• Superior Environmental Sealing: The integrated compression seal and internal gaskets provide a moisture-resistant barrier, shielding the cable’s internal conductors from corrosion and salt spray.

Key Features

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

• Orientation: Right Angle (90-degree) body.

• 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.

Technical Summary