Coaxial cable HiSmart TV991570 LMR-400, 3 m, N-male to N-male

HiSmart TV991570 is a 3 m coaxial cable built to LMR-400 specification with N‑male connectors on both ends. Designed for low-loss RF signal transmission, this cable is suitable for connecting LoRa/LoRaWAN, Helium and other RF equipment such as antennas, radios and amplifiers. The cable has 50 Ω impedance, UV-protected jacket for outdoor use and an operating temperature range from -40 °C to +85 °C.

Advantages

The LMR-400 construction delivers low attenuation and stable impedance for reliable signal integrity. N‑male to N‑male connectors provide a straightforward connection between antennas and radios. The cable’s UV-protected black jacket and wide operating temperature range make it suitable for sheltered outdoor installations as well as indoor use.

Suitable for

• Connecting LoRa/LoRaWAN and Helium antennas to gateways or radios
• Interconnecting RF equipment such as antennas, amplifiers and transceivers
• Indoor and sheltered outdoor RF runs requiring low-loss coax

Key specifications

• Cable type: LMR-400
• Length: 3 m
• Connectors: N‑male to N‑male
• Impedance: 50 ohm
• Operating temperature: -40 °C to +85 °C
• Color: black

How to use

Route the cable between devices avoiding sharp bends and tight coils; maintain the recommended bend radius for LMR-400 to preserve performance. Hand-tighten the N‑male connectors to the mating N‑female ports and, if required, secure with appropriate weatherproofing for exposed outdoor joints. Verify connections and test RF performance after installation.

Usage recommendations

For best results, use this cable for short to medium RF runs where low loss is important. Avoid continuous exposure to direct sunlight without additional protection and check connectors periodically for corrosion or looseness. Ensure compatible N‑female ports and 50 Ω equipment to maintain impedance matching.