50ohm Coaxial Cable LMR300 LMR400（RG8U） TEL500 TEL600 TEL900

The TELSTO series 50-ohm braided coaxial cables, including models LMR300, LMR400 (RG8U), LMR500, LMR600, LMR900, LMR240, RG58, RG213, 5D-FB, 8D-FB, 10D-FB, etc. are designed for high-performance RF signal transmission. Featuring a foam polyethylene (PE) dielectric and a bonded aluminum foil with tinned copper or aluminum alloy braiding outer conductor, this series guarantees a stable characteristic impedance of 50±2 ohms, along with low VSWR and low attenuation. Available with PVC, PE, or LSZH jackets, these cables operate reliably across a wide temperature range from -40°C to +85°C. They are ideally suited for various applications in telecommunications, broadcasting, wireless networks, and signal interconnection between electronic equipment.

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Description

Key Design & Construction

Precise Impedance

All cables in the series maintain a stable 50±2-ohm characteristic impedance, ensuring minimal signal reflection and maximum power transfer in standard RF systems.

Low-Loss Dielectric

At the core is a gas-injected foam polyethylene (PE) insulation. This construction significantly reduces dielectric losses compared to solid PE, enabling better signal integrity over longer distances, especially at higher frequencies.

Superior Shielding

A dual-layer shield combining a bonded aluminum foil and a high-density (80%-95% coverage) tinned copper or aluminum alloy braid provides excellent protection against Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI). This ensures signal purity in electrically noisy environments.

Durable Outer Jacket

Options include PVC for general use, UV-resistant PE for outdoor applications, and Low Smoke Zero Halogen (LSZH) for installations with strict fire safety requirements, such as in public spaces, aircraft, or mass transit systems.

Applications

Cellular Infrastructure: Connecting base station antennas to RF equipment (e.g., for 4G LTE, 5G).

Wi-Fi and Wireless LAN: As feeder cables for access points and distributed antenna systems (DAS).

GPS and Satellite Communication: For timing signals and satellite ground station connections.

Two-Way Radio & Public Safety: Used in land mobile radio (LMR) systems, hence the common name for the category.

Broadcast: Transmitting radio and television signals.

Military & Aerospace: Where reliable, lightweight RF connectivity is critical.

Test & Measurement: As reliable interconnects in laboratory and field testing setups.