SMA Male to SMA Female RG58 100 ft Extension Cable - Low Loss

In this review the XRDS -RF 100 ft RG58 SMA extension cable is evaluated for antenna and SDR users who need a long, low-loss connection. The bottom line: this cable is for hobbyists and installers who want a 50 ohm SMA Male to SMA Female run that preserves signal over distance, thanks to its low-loss RG58 construction and solid copper center conductor. It performs as expected for applications like ADS-B receivers, 3G/4G LTE antennas, GPS and ham radio where running cable outside or through walls without frequent connector failures is important.

Key Features

• Connector type: SMA Male to SMA Female provides a straightforward extension for most SMA-equipped antennas and devices.
• Cable type and impedance: RG58 coax with 50 ohm impedance supports radio equipment and avoids mismatch losses in common SDR and antenna setups.
• Length: 100 ft offers ample reach for placing antennas away from equipment while keeping the receiver or router inside.
• Low-loss design: The cable is described as ultra low-loss, which helps maintain signal strength across the long run and supports higher frequency use with reduced attenuation.
• Premium materials: A solid copper inner conductor improves conductivity and lowers signal loss compared with plated or stranded cores.
• Durable assembly: Heat-shrink tubing with adhesive is used at the connector joints to keep connectors from coming off during outdoor use.

Who It's For

This cable is aimed at hobbyists, radio amateurs, and small installations that require an economical long run between an SMA-equipped device and an external antenna. It is a practical choice for users of ADS-B receivers, SDR dongles, signal boosters, WiFi routers with SMA ports, and many GPS or cellular external antennas.

Users who need the absolute lowest possible loss for professional RF test labs or those requiring specialized low-loss foamed dielectric coax for very high frequency microwave links should look elsewhere, since RG58 is a common, general-purpose coax and not the highest-performing type available for critical lab measurements.

Pros & Cons

Pros

• Long 100 ft length gives flexibility in antenna placement without splicing.
• Solid copper conductor reduces signal loss compared with lower-grade cores.
• Heat-shrink and adhesive bonded connectors add durability for outdoor or routed installations.
• 50 ohm impedance and SMA terminations match typical SDR and antenna equipment.

Cons

• RG58 is not the lowest-loss coax available for very high frequency or long-distance professional links.
• The cable's thickness and flexibility may be less convenient for tight routing compared with thinner coax types.

Specifications

Connector	SMA Male to SMA Female
Cable type	RG58 coaxial cable
Impedance	50 Ohm
Length	100 ft
Inner conductor	Solid copper
Jacket	Flexible, water-resistant PVC

Our Verdict

The XRDS -RF 100 ft RG58 SMA extension cable is a reliable, value-oriented choice for hobbyists and small installations needing a long SMA Male to SMA Female run. Its solid copper conductor and bonded connector joints deliver sensible durability and lower signal loss than cheap alternatives, making it a good pick for ADS-B, SDR, 3G/4G LTE antenna and general antenna placement tasks without the premium cost of specialty low-loss coax.

Frequently Asked Questions

Will this cable work with an SDR dongle?
Yes; the 50 ohm SMA Male to SMA Female construction and RG58 type make it compatible with most SDR receivers that use SMA connectors.

Is this cable suitable for outdoor use?
The PVC jacket and heat-shrink bonded connectors are designed for durable outdoor installations, but long-term exposure to extreme UV and weather may still affect lifespan.

Can this cable be used for GPS and cellular antennas?
Yes; it is suitable for GPS and 3G/4G LTE antennas as long as the SMA connector gender and impedance match the equipment.