Coaxial Cable HiSmart TV991501 LMR-400 3m N-male to RP-SMA-male

HiSmart TV991501 is a 3-meter LMR-400 coaxial cable with an N-male connector on one end and a reverse-polarity SMA male (RP-SMA-male) on the other. It is designed for RF signal transmission and is suitable for connecting LoRa antennas and other RF equipment such as routers and radio devices. The cable offers low attenuation, stable 50 ohm impedance and UV-protected outer jacket for outdoor use.

Advantages

The LMR-400 construction provides consistent shielding and low signal loss over the 3 m length, combining durability with flexibility for installation. The 50 ohm impedance and robust connectors ensure reliable RF performance with LoraWan and Helium technologies and general radio frequency applications.

Suitable for

• Connecting LoRa/LoRaWAN antennas
• Outdoor antenna installations with RP-SMA and N connector equipment
• Routers, gateways and radio equipment requiring low-loss RF cabling
• Upgrades and repairs of antenna feeds and RF links

Key specifications

• Product name: HiSmart TV991501
• Cable type: LMR-400
• Length: 3 m
• Connector 1: N-male
• Connector 2: RP-SMA-male (reverse polarity SMA male)
• Impedance: 50 ohm
• Operating temperature: -40°C to +85°C
• Color: black

How to use

Verify that both connected devices use compatible connector types (N-female and RP-SMA-female). Align and hand-tighten the N-male and RP-SMA-male connectors to the corresponding female ports, avoiding cross-threading. Use appropriate torque if specified by your equipment manufacturer. Route the cable to minimize sharp bends and avoid crushing; for outdoor runs, secure the cable and weatherproof connector interfaces as needed.

Usage recommendations

For best RF performance, keep cable length as short as practical and avoid tight bends. When used outdoors, check UV-protected jacket condition periodically and secure connections against moisture. Match impedance and connector types to your equipment (50 ohm) to prevent signal reflection and loss.