Generic SMA Extension Cable 33ft RG174 Male-Female

SMA Extension Cable 33ft: a flexible, low-loss RG174 coaxial cable with SMA male-to-female connectors designed to extend antennas for SDRs, routers, GPS, cameras and cellular devices.

When antenna placement matters, this 33-foot RG174 SMA extension brings your antenna to the ideal spot without relocating your device. Built with a 50-ohm impedance and gold-plated SMA connectors, it minimizes signal degradation while remaining thin and easy to route through walls, windows, and vehicle cabins. It’s a practical alternative to thicker LMR100 or RG58 runs when long, neat runs are required in tight spaces.

How will this cable improve my antenna placement?

Extending the antenna lets you raise or reposition it for clearer line-of-sight and reduced obstructions, which often improves reception and transmission. The low-loss solid copper center conductor and gold-plated SMA connectors keep attenuation low over the 33-foot length.

• 33 ft length gives flexible mounting options (roof, window, pole).
• 50-ohm RG174 suited for many RF devices including SDR and GPS.
• Gold-plated SMA connectors resist corrosion and ensure firm mating.
• Thin, easy-to-route cable for neat installation in tight runs.

Which devices are compatible with this SMA male-to-female cable?

The cable is compatible with any device using standard SMA male or SMA female antenna ports and a 50-ohm line. It’s commonly used with software-defined radios, WiFi routers, cellular boosters, GPS receivers and security cameras.

• Works with SDR dongles, WiFi routers, hotspots and cellular boosters.
• Compatible with GPS modules, IP/back-up cameras, and radio equipment.
• Not suitable for TV coax (F-type) or satellite dish systems.
• Pairs with RP-SMA only if the device uses the standard SMA interface (check connector gender).

What performance can I expect from RG174 over 33 feet?

RG174 is a thin, flexible 50-ohm coax with slightly higher loss than heavier cables but much easier to route. Over 33 feet it provides an effective balance of convenience and acceptable attenuation for short-range RF uses where extreme low loss isn’t critical.

• Low-loss solid copper conductor for reliable signal transfer.
• Best for WiFi, GPS, SDR, and cellular applications at modest distances.
• Not ideal for high-power transmitters or long-distance links where LMR400-style cable is preferred.
• Gold-plated connectors reduce contact resistance and corrosion risk.

How do I install and maintain the cable for best results?

Route the cable without tight kinks, secure it with clips, and avoid sharp bends near connectors. Keep connectors clean and hand-tighten to prevent damage; use torque tools only if specified by the connected equipment.

• Avoid tight loops; use gentle curves to preserve impedance.
• Seal outdoor connections from moisture when used externally.
• Hand-tighten SMA connectors and inspect periodically for corrosion.
• Store coiled loosely to prevent permanent deformation.

Who is this for? If you need a long, flexible antenna lead to reposition an antenna without moving your device, this 33-foot SMA male-to-female RG174 extension is a convenient and affordable choice. It’s aimed at hobbyists, installers, and technicians working with SDRs, WiFi access points, GPS modules, cellular extenders, backup cameras and other 50-ohm RF equipment who value easy routing and dependable connectors over ultra-low-loss bulk cable. Avoid using this cable for TV or satellite applications that require F-type connectors or thicker, lower-loss coax.