Electronics & Computing

The Best RG-58-U Coaxial Cables

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Our picks are based on Amazon bestseller rankings, verified customer ratings, and product availability. We update our recommendations regularly to ensure accuracy.

RG-58-U coaxial cable is a versatile and common choice for various radio frequency applications. Selecting the correct cable ensures optimal signal integrity and reliable performance for your networking and communication needs. Understanding key features will help you make an informed decision.

No. 1
Superbat RG58 Coaxial Cable 100ft 50 Ohm RG-58 Coax Cable
  • Type: Low-loss RF Coax RG58 A/U Cable | Length: 100 feet
  • Material: Inner conductor: Tinned copper | Insulation: PE | Outer conductor: Tinned Copper Braid | Jacket: PVC, So this rg-58 coax cable can work normally in harsh outdoor environments.
  • Impedance: 50 ohm coax cable | Max Frequency: 1000MHz | good conductivity and signal transmission,with highly resistant to signal interference.
  • The rg58 cable can be combined with connectors to form jumpers , such as cb antenna cable, sma extension cable, N cable, UHF cable, BNC cable,TNC cable etc.
  • We are a professional radio frequency coaxial cable company, the rg58 coaxial cable are of high quality, you can buy our coax cable with great confidence.
No. 2
Superbat RG58 Coaxial Cable 50 Ohm Coax Cable 20 Feet (6.09 Meters)
  • Type: Low-loss RF Coax RG58 A/U Cable | Length: 20 feet
  • The rg 58 coaxial cable Material: Inner conductor: Tinned copper | Insulation: PE | Outer conductor: Tinned Copper Braid | Jacket: PVC, So this rg-58 coax cable can work normally in harsh outdoor environments.
  • Diameter(mm): Inner conductor: 19*0.18 | Insulation: 2.95 | Outer conductor: 3.50 | Jacket: 4.95 ,then the rg 58 cable is good for cb / ham radio antenna swr meter jumper cable
  • Impedance: 50 ohm coax cable | Max Frequency: 1000MHz | Capacitance Conductor to Shield(pF/m): 101.05
  • We are a professional radio frequency coaxial cable company, the rg58 coaxial cable are of high quality, you can buy our coax cable with great confidence.
No. 3
18' RG-58A/U Coaxial Cable With Pl-259 Connectors
  • TRUCKSPEC 18' Antenna Coax Cable with PL-259 Connectors.
  • Perfect for CB, Amateur and Two-Way Radio Applications.
  • High Quality RG-58A/U Coax With Molded PLK-259 Connectors Installed.
No. 4
Superbat RG58 Coaxial Cable 50ft RG-58 50 Ohm Coax Cable
  • Type: Low-loss RF Coax RG58 A/U Cable | Length: 50 feet
  • The rg58 coaxial cable Material: Inner conductor: Tinned copper | Insulation: PE | Outer conductor: Tinned Copper Braid | Jacket: PVC, So this rg-58 coax cable can work normally in harsh outdoor environments.
  • Diameter(mm): Inner conductor: 19*0.18 | Insulation: 2.95 | Outer conductor: 3.50 | Jacket: 4.95 ,then the rg 58 cable is good for cb / ham radio antenna swr meter jumper cable
  • Impedance: 50 ohm coax cable | Max Frequency: 1000MHz | Capacitance Conductor to Shield(pF/m): 101.05
  • We are a professional radio frequency coaxial cable company, the rg58 coaxial cable are of high quality, you can buy our coax cable with great confidence.
No. 5
RG58 Coaxial Cable - 50 Ohm Shielded Cable for RF Communication, Ham Radio, and Antenna Applications 50FT
  • High-Quality Construction: Features a solid copper inner conductor, bonded aluminum foil, and tinned copper shielding for optimal signal integrity.
  • Wide Compatibility: Designed for use with ham radios, CB radios, antennas, GPS systems, and other RF communication devices.
  • Durable Materials: Encased in a black PVC jacket, providing excellent resistance to wear and environmental factors.
  • Precise Engineering: Impedance of 50 Ohms ensures efficient signal transmission across a variety of applications.
  • Versatile Performance: Supports RF applications up to 1 GHz, making it ideal for both professional and hobbyist use.
No. 6
uxcell RG8/U Coax Cable with Pl-259 Male Connectors for CB/Ham Radio 30.5m/100ft
  • 100 ft RG8/U Antenna Coax Cable With Pl-259 Male Connectors.
  • Perfect for CB, Amateur and Two-Way Radio Applications.
  • RG8/U Coax With PL-259 Connectors Installed.
  • Stranded center conductor for flexibility and the cable is made of copper with good quality.
  • RG-8X coax is a step up from standard RG-58 coaxial and is recommended for high-powered applications or users who simply want the best coax possible
No. 7
uxcell RG8/U Coax Cable with Pl-259 Male Connectors for CB/Ham Radio 23m/75ft
  • 75.5 ft RG8/U Antenna Coax Cable With Pl-259 Male Connectors.
  • Perfect for CB, Amateur and Two-Way Radio Applications.
  • RG8/U Coax With PL-259 Connectors Installed.
  • Stranded center conductor for flexibility and the cable is made of pure copper with good quality.
  • RG-8X coax is a step up from standard RG-58 coaxial and is recommended for high-powered applications or users who simply want the best coax possible
SaleNo. 8
RFAdapter RG8x Coaxial Cable, CB Coax Cable, 50ft UHF PL259 Male to Male Low Loss CB Antenna Cables, 50 Ohm...
  • Low Loss RG8X Cable: Our RG8X cable is made with pure copper inner conductor, with double shielding to prevent signal leakage, interference and signal loss. Our cable is stronger and more durable than the average CB antenna cables.
  • High Quality UHF Connectors: Fully molded nickel-plated brass UHF PL259 connectors with gold-plated center pins, for frequencies up to 300 MHz.
  • Waterproof and Easy to Use: With a strong and flexible PVC jacket, it can be used indoors and outdoors.
  • Wide Compatibility: These RG8X cables are perfect for any 50 Ohm RF system, like CB ham radio, antenna analyzer, antenna tuner, dummy load, SWR meter, antenna transceiver and so on. It's also great for Jeep Wrangler CB installation.
  • Better than RG58, RG8x coax cable has 17AWG thicker pure copper inner conductor, is recommended for high-powered applications or users who simply want the best coax possible.
No. 9
YOTENKO RG213 Coaxial Cable 50FT - CB Coax Cable Ultra Low Loss RG-213 UHF PL-259 Coax Cable Male to Male...
  • 【Type】- RG213 coaxial cable w/PL-259 connectors, Cable Length: 50-feet(15.3m), Impedance: 50-ohm, Protection: Heat-shrink tubing on both ends to keep out contaminants.
  • 【Ultra-Low Loss】- RG213/U cable has much lower loss than common thinner cables like RG58/RG8X. It only loses 4.42dB per 100 feet at 400MHz, with a VSWR of 1.25 or less, making it ideal for long-distance and high-power RF signal transmission or...
  • 【Outstanding Transmission Properties】-RG213 coax offers great transmission features, including a stable 50-ohm impedance and a low capacitance of 31.7 pf/ft, ensuring signal integrity and speed.
  • 【Durable Construction】-Built tough, RG213 PL259 cable has a 7-strand bare copper inner conductor, polyethylene insulation, a bare copper braid shield and a protective outer layer of PVC. The 96% coverage copper braid provides excellent EMI shielding...
  • 【Applications】- The rg-213/u direct burial cable's PVC jacket offers good resistance to UV rays and chemical corrosion, making it suitable for indoor and outdoor environments. Its lack of flexibility and heavier weight make it used for fixed and...
No. 10
Eightwod RG58 A/U RF Coaxial Cable Flexible Low Loss Coax 50 feet
  • Type: RG58 A/U low loss coaxial cable, Impedance:50 ohm
  • Material-- Inner conductor: Tinned copper | Insulation: PE | Outer conductor(shielding): tinned copper braid | Jacket (insulation sheath):PVC
  • Diameter-- Inner conductor:19*0.18mm | Insulation: 2.95mm | Outer conductor(shielding): 96*0.12mm | Jacket (insulation sheath): 4.95mm
  • Features: Flexible, low V.S.W.R, excellent shielding performance
  • Max Frequency: 1000MHz; Package Includes: 1x 50 feet RG58 cable

Last update on 2026-08-03 / Affiliate links / Images from Amazon Product Advertising API

How to Choose the Best RG-58-U Coaxial Cables

Key Specifications to Consider

  • Impedance: RG-58-U is standardized at 50 ohms, which is crucial for matching with most radio transmitters and receivers. Ensure the cable you choose maintains this impedance throughout its length to prevent signal reflections and power loss.
  • Length: Cables come in various lengths, from short patch cords to longer runs. Measure your required distance accurately to avoid excess cable, which can introduce signal degradation, or insufficient cable, which will prevent proper connection.
  • Connector Type: The most common connector for RG-58-U is the BNC or PL-259 (UHF) connector, but others like SMA may also be used. Verify that the connectors on the cable match the ports on your devices. Consider the quality of the connector plating for durability and signal conductivity.
  • Shielding: RG-58-U typically features a braided copper shield. Higher quality cables may have double braiding or foil shielding for enhanced protection against electromagnetic interference (EMI). This is particularly important in environments with a lot of electronic noise.

Applications and Use Cases

  • Amateur Radio (Ham Radio): Commonly used for connecting antennas to transceivers for short-range communications.
  • CB Radio: Suitable for mobile or base station setups where signal integrity is important for clear communication.
  • Networking: While less common in modern Ethernet, it was historically used in some wired network configurations.
  • Test Equipment: Often employed in laboratories and workshops for connecting oscilloscopes, signal generators, and other RF test gear.

Quality and Durability

  • Look for cables with solid copper center conductors for better conductivity compared to copper-clad steel.
  • The dielectric material (insulation) affects signal loss; polyethylene is common, while foam polyethylene offers lower loss.
  • Outdoor-rated cables will have a more robust jacket material to withstand UV exposure and environmental factors.

Frequently Asked Questions

What is the primary impedance of RG-58-U cable?
RG-58-U coaxial cable is designed to have a characteristic impedance of 50 ohms. This impedance is standard for many radio frequency applications and ensures efficient power transfer between connected devices.
Can RG-58-U be used for Wi-Fi antennas?
Yes, RG-58-U can be used for Wi-Fi antennas, especially for shorter runs or when connecting to older equipment. However, for longer distances or higher frequency applications, cables with lower signal loss like RG-58-AU or LMR series might be preferable.
What are the common connector types for RG-58-U?
The most common connector types for RG-58-U are BNC and PL-259 (UHF). SMA connectors are also frequently found, particularly in wireless networking and radio applications.
How does cable length affect signal quality?
Longer cable runs inherently introduce more signal loss (attenuation). For extended distances, it's best to use thicker gauge coaxial cables or cables specifically designed for low-loss transmission to maintain signal integrity.
What is the difference between RG-58-U and RG-58-AU?
The primary difference lies in the center conductor. RG-58-U typically uses a solid copper-clad steel conductor, while RG-58-AU uses a stranded tinned copper conductor. The stranded conductor offers better flexibility and durability.