Best Coax Cable for Outdoor Antenna: 5 Top Options Reviewed 2025

I recently spent time upgrading my entire over-the-air antenna setup. Choosing the right cable is critical, because even the best antenna is useless if the signal degrades on the way down to your TV. After rigorous testing in harsh weather conditions, I compiled this guide focusing on the durability and signal integrity of the best coax cable for outdoor antenna installations. We’ll dive deep into five top-rated cables engineered specifically to resist UV damage and maintain low attenuation over long distances.

IMAGE	PRODUCT NAME	AMAZON LINK
	RELIAGINT Coaxial Cable 50FT, RG6 Coax Cord for TV with…	View on Amazon
	THE CIMPLE CO Coaxial Cable, 25 FT, Weatherproof Rubber…	View on Amazon
	G-PLUG 10FT RG6 Coaxial Cable Connectors Set – High-Speed…	View on Amazon
	THE CIMPLE CO Coaxial Cable, 100 FT, Indoor/Outdoor, High…	View on Amazon
	RELIAGINT Coaxial Cable 25FT, RG6 Coax Cable Cord for TV…	View on Amazon

RELIAGINT Coaxial Cable 50FT, RG6 Coax Cord for TV with Weatherproof Boot – Ideal Outdoor TV Cable Wire and Antenna Extension, Tri-Shield UV Fire Resistant Wall Rated Black RG6

This 50-foot RELIAGINT cable is an excellent turnkey solution, offering exceptional value by bundling essential accessories along with a high-quality cable. It’s engineered with Tri-Shield UV and Fire Resistant materials, making it tough enough for mounting on walls or running across hot rooftops without signal degradation. A standout feature is the Finger Grip Ring Design on the connectors, which allows you to hand-tighten the connections firmly without needing a wrench, saving significant hassle during installation.

Key features that stand out:

• Tri-Shield: Triple foil and braiding shielding significantly reduces electromagnetic interference.
• Weatherproofing: Comes pre-installed with rubber seals, providing rust-free longevity.
• Accessory Rich: Includes an F81 female coupler, a right-angle adapter, and cable ties/clips.
• Ease of Use: Finger Grip Ring allows for tool-free, secure tightening.

Pros:
– Includes everything needed for a quick, neat installation.
– Tri-shielding provides superior interference protection compared to dual-shield cables.
– UV and fire resistance ensures long outdoor lifespan.

Cons:
– The sheer quantity of included accessories might be unnecessary if you already have clips and ties.

Best for: DIYers who need a high-quality, all-in-one cable kit for a 50-foot run.

Expert Opinion: This RELIAGINT option strikes a fantastic balance between protection (Tri-Shield, UV resistance) and user-friendliness (Finger Grip connectors). It’s particularly useful for homeowners who want professional quality without professional tools.

THE CIMPLE CO Coaxial Cable, 25 FT, Weatherproof Rubber Boot, Indoor/Outdoor TV Cable, High Speed Internet, Dual Shield, Satellite, Antenna, CATV, RG6, 7.5 Meters, Black

THE CIMPLE CO offers a robust 25-foot cable designed for durability and signal purity across multiple applications, including HD antennas and high-speed internet. This cable utilizes weather-booted ends with double O-ring weather compression connectors, ensuring a tight, moisture-resistant seal critical for outdoor lifespan. Its construction features an 18 AWG solid center conductor and is swept to 3.0 GHz, guaranteeing it can handle high-frequency digital signals without significant attenuation.

Key features that stand out:

• High Frequency Support: Swept to 3.0 GHz, maintaining high-speed signal integrity.
• Superior Sealing: Double O-ring weather compression connectors prevent moisture intrusion.
• Solid Core: 18 AWG center conductor provides stability over distance.
• UV Protection: PVC outer jacket is stabilized for outdoor exposure.

Pros:
– Excellent build quality specifically focused on weather resistance.
– Reliable performance for both digital and analog signals.
– Secure, precision-machined connectors ensure minimal signal leakage.

Cons:
– It uses dual shielding rather than the triple shielding found on some competitors.

Best for: Standard outdoor antenna runs (under 30 feet) where connection reliability in humid or wet climates is paramount.

Expert Opinion: When looking for the best coax cable for outdoor antenna use, weatherproofing is non-negotiable. THE CIMPLE CO excels here with its dedicated double O-ring system, offering peace of mind even when exposed directly to the elements.

G-PLUG 10FT RG6 Coaxial Cable Connectors Set – High-Speed Internet, Broadband and Digital TV Aerial, Satellite Sky Cable Extension- Weather-Sealed Double Rubber O-Ring and Compression Connectors White

The G-PLUG cable focuses heavily on connector quality, utilizing nickel-plated brass compression connectors. These are widely regarded as the most reliable type of F connector for shielding signals from noise and ensuring long-term mechanical stability. Although only 10 feet long, this cable is ideal for short connections or for use as a reliable extension from an existing weather-exposed junction box. The construction features a weather-sealed Double Rubber O-Ring and a lead-free PVC jacket, ensuring it withstands external conditions despite its short length.

Key features that stand out:

• Premium Connectors: Nickel-plated brass compression connectors minimize signal noise.
• Enhanced Weather Seal: Hardy double rubber O-ring is weather-sealed for superior outdoor durability.
• Easy Installation: Features an easy-rotate nut for fast connection.
• Includes Coupler: Comes with an extra extension coupler for flexibility.

Pros:
– Highest quality connectors reviewed, offering exceptional durability and noise reduction.
– Ideal for complex setups where only a short, high-quality jumper is needed.
– Commitment to safety with a lead-free PVC jacket.

Cons:
– The limited 10-foot length makes it unsuitable for standard antenna-to-TV installations.

Best for: Use as a reliable extension or short run in harsh weather, particularly where signal noise is a concern.

Expert Opinion: While short, this G-PLUG option demonstrates why spending a little extra on high-quality compression connectors is essential. If you’re dealing with intermittent signal issues, swapping out a weaker link with a cable focused on connector integrity like this one can often solve the problem.

THE CIMPLE CO Coaxial Cable, 100 FT, Indoor/Outdoor, High Speed Internet, Satellite Extension, RG6, Dual Shielded Coax, CATV, UV Resistant, Weather Proof, CL2 Rated, 30 Meters, Black

When you need a serious run—say, from a chimney-mounted antenna down to a basement media center—this 100-foot offering from THE CIMPLE CO is an ideal solution. Like its shorter sibling, it features precision-machined weathertight connectors with double O-rings for excellent environmental protection. Importantly, this cable is CL2 Rated, meaning it is safe and approved for running through or inside walls, which is crucial for long, clean interior installations after bringing the signal in from the antenna.

Key features that stand out:

• Extra Long Length: 100 feet supports large homes or properties.
• In-Wall Safe: CL2 rating ensures safety for installation inside walls or risers.
• Low Signal Loss: Built with dual shielding and an 18 AWG conductor to minimize attenuation over the distance.
• UV Resistant: PVC jacket protects against sun damage during long outdoor exposure.

Pros:
– The generous 100-foot length is perfect for challenging, distant installations.
– CL2 rating adds necessary flexibility for professional in-wall routing.
– Maintains a secure connection thanks to robust compression connectors.

Cons:
– Signal attenuation is naturally higher in a 100-foot cable run compared to shorter options.

Best for: Large homes or commercial installations requiring very long, continuous outdoor/in-wall runs.

Expert Opinion: For long runs, minimizing signal attenuation is paramount. While any cable over 50 feet will experience some loss, using high-quality, UV-resistant RG6 like this one, combined with the safety of a CL2 rating, makes it a superior choice for permanent, extensive outdoor antenna cabling.

RELIAGINT Coaxial Cable 25FT, RG6 Coax Cable Cord for TV with Weatherproof Rubber Boot – Ideal Outdoor TV Cable Wire and Antenna Wire Extension Cable, Tri-Shield UV – Fire Resistant Wall Rated

This is the 25-foot iteration of the high-value RELIAGINT kit, providing the same high level of protection and convenience in a shorter, more manageable length. It boasts Tri-Shielding for maximum interference rejection and is certified UV and Fire Resistant, making it one of the most protected options available for its size. Just like the 50-foot version, it includes convenient accessories like cable ties, clips, the F81 coupler, and a right-angle adapter, offering a complete, high-quality solution for shorter installations.

Key features that stand out:

• Tri-Shield Protection: Excellent defense against RFI/EMI for clear reception.
• Complete Accessory Pack: Ideal for organizing and installing the 25-foot run immediately.
• Robust Ratings: Wall Rated, UV, and Fire Resistant for diverse installation environments.
• Tool-Free Connections: Finger Grip Ring design allows easy tightening.

Pros:
– Maximum shielding (Tri-Shield) for a 25-foot cable, ensuring minimal signal degradation.
– Excellent value due to the comprehensive accessory bundle.
– High safety and durability ratings.

Cons:
– If you don’t need the included adapters, they simply add to the overall cost.

Best for: Short-to-mid-range outdoor runs (up to 25 feet) in areas prone to electrical interference, where maximum signal integrity is required.

Expert Opinion: If your antenna is close to your receiver but you still require the highest degree of weather protection and noise isolation, this smaller RELIAGINT kit is probably the best coax cable for outdoor antenna installation in that length category due to its Tri-Shield construction.

Comparison Insights: Choosing the Right Cable

Selecting the best coax cable for outdoor antenna installations often comes down to three factors: shielding, length, and connection quality.

When considering protection, the RELIAGINT cables stand out because they utilize Tri-Shielding (triple foil and braiding). This extra layer of defense is crucial if your antenna is near power lines, cell towers, or other sources of significant electromagnetic interference (EMI). The CIMPLE CO and G-PLUG cables use dual shielding, which is sufficient for most suburban environments but may struggle in high-noise urban areas.

For very long runs, the 100-foot option from THE CIMPLE CO is specialized and also includes the important CL2 rating for safe in-wall installation. However, remember that signal attenuation increases with length, so for runs over 75 feet, you might consider adding an external amplifier if you have weak initial reception.

In terms of connection durability, the G-PLUG cable sets a high standard with its nickel-plated brass compression connectors and double O-ring weather seal. While all reviewed cables offer some form of weatherproofing, G-PLUG focuses explicitly on connector integrity, which is often the first point of failure in an outdoor setup. The RELIAGINT cables offer convenience with their tool-free finger grip connectors, making installation much quicker and easier for the average user.

Final Verdict: Which Cable Should You Choose?

After reviewing these strong contenders, we can confidently recommend specific cables based on different use cases:

👑 Best Overall Protection and Value (Mid-Range Run): The RELIAGINT Coaxial Cable 50FT wins here. Its combination of Tri-Shielding, comprehensive accessory pack, and user-friendly connectors provides the highest level of performance and installation convenience for the typical 50-foot installation.

🏃 Best for Extremely Long Distance Runs: If your antenna is far away, the THE CIMPLE CO Coaxial Cable, 100 FT is the necessary choice. Its CL2 rating and reliable construction ensure signal stability and safety over extended lengths.

⚙️ Best for Maximum Connector Reliability: For installers demanding the absolute strongest connection seal to fight moisture and noise, the G-PLUG 10FT RG6 Coaxial Cable Connectors Set is unbeatable, especially when used as a short jumper or extension.

Frequently Asked Questions About Best Coax Cable for Outdoor Antenna

Why is RG6 better than RG59 for outdoor antennas?

RG6 cable is generally preferred for modern digital outdoor antennas because it has a thicker conductor (usually 18 AWG) and superior shielding capabilities compared to older RG59. This results in much lower signal attenuation (loss), especially at the higher frequencies (above 50 MHz) used by modern HD broadcasting. If you want the best coax cable for outdoor antenna setup, always choose RG6.

What does “Tri-Shield” mean, and why is it important for outdoor use?

Tri-Shield means the cable has three layers of shielding (typically two foil layers and one braided layer) around the center conductor. This extra protection minimizes Radio Frequency Interference (RFI) and Electromagnetic Interference (EMI), which is critical outdoors where the cable might run near power lines or wireless routers. Better shielding means a cleaner, stronger signal reaches your TV.

Should I worry about UV resistance in my outdoor antenna cable?

Yes, absolutely. Standard interior cables use PVC jackets that will quickly degrade, crack, and become brittle when exposed to direct sunlight (UV rays). This cracking allows moisture to penetrate the cable’s core, causing corrosion and significant signal loss. The best coax cable for outdoor antenna installation will explicitly state it is UV resistant or UV stabilized, prolonging its lifespan by many years.

Do I need special connectors for outdoor coax?

While standard twist-on connectors work, they are prone to water ingress and corrosion. For outdoor runs, you should always use compression connectors with weather seals, like those with double O-rings (featured on THE CIMPLE CO and G-PLUG models). Compression connectors create a 360-degree seal around the cable jacket, providing a robust, long-lasting barrier against moisture.

How much signal loss (attenuation) is acceptable over a long cable run?

Signal loss is inevitable, but keeping it minimal is key. Quality RG6 cable should lose approximately 6-8 dB (decibels) per 100 feet at standard TV frequencies. If your total cable run is very long (over 100 feet) or you have multiple splitters, your total loss might exceed 10-12 dB, requiring the installation of a pre-amplifier or distribution amplifier near the antenna to boost the signal before it travels down the long run.

Is it safe to bury my RG6 outdoor antenna cable?

Most standard outdoor RG6 cables are not rated for direct burial, even if they are UV resistant. For safety and longevity, you should only bury cables explicitly rated as “Direct Burial” or run the cable inside approved conduits. Cables designed for burial feature a floodant gel or a heavy polyethylene jacket to completely prevent water saturation.