Proxicast RP-SMA Male to N Male Coaxial Cable, 50 ft — CFD400 Low-Loss, Weather-Resistant

Proxicast 50 ft RP-SMA male to N male CFD400 low-loss 50Ω coaxial cable is a premium LMR400-equivalent jumper engineered to connect RP-SMA wireless devices and N-female antennas with minimal signal loss.

This 50-foot cable is built for reliable RF performance in home, office, and light outdoor installations where you need a longer run between your Wi‑Fi access point, Helium miner (HNT hotspot), or other RP‑SMA devices and an N‑female external antenna. Constructed to meet or exceed LMR400 specifications, it combines a solid CCA center conductor, braided tinned copper shielding, and weather-resistant jacketing for low VSWR and long service life. It is not intended for TV coax or cellular antenna systems.

How much signal loss should I expect over 50 feet?

The CFD400-style construction dramatically reduces attenuation compared with older RG-8U and RG-213U cables, so you retain more usable signal across the run. Expect substantially lower dB loss at typical Wi‑Fi and IoT frequencies versus standard RG‑coax alternatives.

• LMR400-equivalent performance with significantly less loss than RG‑8U/RG‑213U
• Low VSWR for cleaner transmission and reception
• Optimized for 2.4–5.8 GHz Wi‑Fi bands and sub‑GHz IoT applications

Will this cable work with my Helium miner or Wi‑Fi router?

Yes — the cable is compatible with all RP‑SMA wireless devices and N‑female antennas, making it a straightforward jumper for Helium miners, Wi‑Fi APs, WLAN bridges, and LoRa gateways. It uses a reverse-polarity SMA male on one end and an N male on the other to match typical hotspot and external antenna connections.

• RP‑SMA male fits routers, APs, and Helium miner antenna ports
• N male mates with standard external N‑female base station antennas
• Gold-plated signal pins for consistent low-resistance contact

Is this cable durable enough for outdoor use?

The cable is built with a tough polyethylene outer jacket and heat-shrink protection at each termination to resist abrasion and moisture. While designed for outdoor-rated performance, terminate and seal any exposed connectors for long-term rooftop or pole mounting in harsh environments.

• PE outer jacket for abrasion and weather resistance
• Heat-shrink at both ends for strain relief and improved sealing
• Braided tinned copper shield resists corrosion and maintains shielding effectiveness

How do I know the cable meets quality standards?

Each Proxicast assembly is factory tested to ensure electrical continuity and predictable RF performance. The combination of a solid copper-clad aluminum core, tight braid, and controlled dimensions reduces variability that can degrade wireless links.

• 100% factory tested for continuity and RF parameters
• Gold‑plated center pins and robust mechanical terminations
• Constructed to LMR400-equivalent tolerances for repeatable results

Who is this for: Installers, hobbyists, and small-scale network operators who need a long, low-loss RP‑SMA to N male coax jumper for Wi‑Fi access points, Helium miners (HNT hotspots), LoRa devices, and other 50‑ohm wireless equipment. Choose this cable when you want LMR400-like performance, durable outdoor-capable construction, and factory-tested assemblies for reliable antenna connections. Note: not suitable for TV or cellular antennas that require different impedances or connector types.