RG58 Coaxial Cable 100ft 50 Ohm - Low-Loss RF Extension Cable

In this review the Superbat RG58 Coaxial Cable 100ft stands out as a straightforward, no-frills extension option for amateur radio and antenna projects. For users who need a long, flexible 50 ohm feedline that can be cut and fitted with connectors, this cable delivers consistent signal transmission and easy handling. The biggest reason to buy is its combination of a tinned copper conductor and braided outer shield that provides reliable conductivity and reasonable resistance to interference while remaining flexible enough for routing and outdoor use.

Key Features

• Length 100 ft: Provides ample reach for antenna runs, mast-to-shack runs, or longer jumper builds without having to splice multiple shorter sections.
• 50 ohm impedance: Matches common CB and VHF/UHF equipment to minimize mismatch losses when paired with appropriate connectors and antennas.
• Tinned copper conductors: The inner conductor and braided shield use tinned copper for good conductivity and improved corrosion resistance in outdoor setups.
• PVC jacket and PE insulation: Combines a durable jacket with foam/solid PE insulation to keep the cable functional in routine outdoor conditions.
• Max frequency 1000MHz: Supports a wide range of radio, antenna, and extension uses across CB, VHF and many UHF applications.

Who It's For

The RG58 100ft cable is best for hobbyists, CB radio owners, and installers who need a long, flexible 50 ohm coax to build antenna jumpers or extension leads. Its flexibility and conductor materials make it a practical choice for routing around masts, through walls, or assembling custom connectors such as BNC, SMA, UHF, or N.

Those needing the absolute lowest loss for long high-frequency runs, or who require heavy-duty UV/professional outdoor rated jacketing, should look at larger-diameter or specifically UV-rated low-loss coax alternatives. For short patch leads inside equipment, higher quality factory-terminated cables may be preferable.

Pros & Cons

Pros

• Good balance of conductivity and flexibility thanks to tinned copper inner and braided outer conductors.
• Long 100 ft length reduces the need for splices for many installations and projects.
• Wide frequency support to about 1000MHz makes it versatile for CB, VHF and UHF tasks.

Cons

• Build quality feedback is mixed; some users report the braiding and overall robustness are adequate but not premium.
• Not marketed as a heavy-duty, UV-optimized professional coax for permanent extreme exposure without additional protection.

Specifications

Type	Low-loss RF Coax RG58 A/U
Length	100 ft
Impedance	50 ohm
Max Frequency	1000MHz
Inner Conductor	Tinned copper
Insulation	PE
Outer Conductor / Jacket	Tinned copper braid / PVC

Our Verdict

The Superbat RG58 100ft coax is a sensible value for hobbyists and installers who need a flexible, 50 ohm extension cable they can terminate with a variety of connectors. It delivers reliable signal transmission and useful outdoor resistance for typical antenna installations, though buyers seeking the absolute highest durability or lowest loss should consider thicker, specialty coax options. For its price and versatility it represents good value for most CB and VHF/UHF projects.

Frequently Asked Questions

Can this cable be fitted with my connectors?
Yes. The RG58 can be cut and combined with common connectors such as BNC, SMA, UHF, TNC and N to create jumpers and extension leads.

Is this cable suitable for outdoor use?
Yes, the PVC jacket and tinned copper braid allow normal outdoor use, but prolonged direct UV or extreme exposure may require additional protection or conduit.

What frequency range will it support?
The cable is specified up to about 1000MHz, making it useful across CB, VHF and many UHF applications.