LMR400 Coaxial Cable - High-Performance, Low-Loss, Weatherproof RF Cable for Reliable Signal Transmission

Overview

LMR 400 is a 50 Ohm low loss coaxial cable widely used in RF, wireless communication, and telecom infrastructure. It is designed for minimal signal attenuation over long distances, making it ideal for antenna feeder lines, base station installations, WiFi systems, and radio communication setups.

If you are looking for a reliable LMR400 cable for outdoor antenna installation or telecom networks, this cable provides stable electrical performance, flexible routing, and durable construction suitable for indoor and outdoor environments.

Key Features

• Low loss performance for long RF cable runs
• 50 Ohm impedance for professional RF systems
• Flexible yet durable construction
• Suitable for indoor and outdoor installations
• Compatible with common RF connectors such as N, SMA, TNC and BNC

Technical Specifications

• Cable Type: LMR 400
• Impedance: 50 Ohm
• Outer Diameter: Approx. 10.3 mm
• Conductor: Copper-clad aluminum or solid copper (depending on variant)
• Shielding: Aluminum tape and tinned copper braid
• Jacket: Black PE (suitable for outdoor use)
• Application: RF, Wireless, Telecom, Antenna Feeder

Compatible Devices

• Cellular base station antennas
• WiFi and WLAN antennas
• Two-way radio systems
• Signal boosters and repeaters
• RF transmitters and receivers

FAQ

What is LMR 400 cable used for?
LMR 400 is used for RF signal transmission in antenna systems, wireless networks, telecom infrastructure and radio communication where low signal loss is required.

Is LMR 400 suitable for outdoor installation?
Yes, the black PE jacket version is designed for outdoor use and can withstand environmental exposure.

What connectors are compatible with LMR 400?
LMR 400 supports connectors such as N type, SMA, TNC, BNC and other 50 Ohm RF connectors designed for LMR400 cable diameter.

Is LMR 400 better than RG8?
LMR 400 typically offers lower signal loss and improved shielding compared to traditional RG8 cables, making it suitable for longer cable runs.