Coaxial cable HiSmart TV991518 LMR-400, 10 m, N-male to RP-SMA male

Coaxial cable HiSmart TV991518 LMR-400, 10 m, N-male to RP‑SMA male is a 10‑metre low-loss RF cable built with LMR‑400 coaxial construction. It provides a 50 ohm transmission line for connecting antennas, routers and radio equipment, with one end terminated in an N‑male connector and the other in a reverse‑polarity (RP) SMA male. The cable is black, rated for outdoor use with UV protection and operates over a wide temperature range.

Advantages

The LMR‑400 construction offers low attenuation and stable impedance across typical RF frequencies, combined with robust mechanical flexibility and durability for field installations. Connectors are commonly used in LoRa, LoRaWAN and Helium setups, ensuring compatibility with a broad range of wireless devices and antennas.

Suitable for

• Connecting outdoor antennas to gateways and routers
• LoRa/LoRaWAN and Helium network equipment
• RF test setups and amateur radio applications requiring low-loss cable

Key specifications

• Model: HiSmart TV991518
• Cable type: LMR-400
• Length: 10 m
• Impedance: 50 ohm
• Connector 1: N‑male
• Connector 2: RP‑SMA male (reverse polarity)
• Operating temperature: -40 °C to +85 °C
• Color: Black
• Warranty: 24 months

How to use

Route the cable between the antenna and radio equipment taking care to avoid sharp bends and crushing. Tighten the N and RP‑SMA connectors by hand and, if necessary, use appropriate torque tools following connector manufacturer recommendations to ensure secure RF contact. Ensure outdoor feed points are sealed or weatherproofed where connectors are exposed.

Usage recommendations

For minimal signal loss, keep cable runs as short as practical and avoid tight bends; maintain the specified operating temperature range and protect exposed connectors from moisture when used outdoors.