Proxicast ProGrade 230V Coaxial Lightning Arrester – UHF SO-239 / SO-239
4.6Editor score
50 Ohm Impedance
UHF SO-239 Connectors
230V Gas Discharge Tube
In this guide
Protecting your communication equipment from electrical surges is vital for anyone using antennas. A quality antenna lightning arrestor diverts dangerous energy safely to ground before it reaches sensitive radios.
We analyzed ten highly rated products based on impedance matching, connector types, and surge capacity. This guide helps you choose the right protector for your specific setup and frequency needs.
Each pick shows key specs and real-world applications. Prices and availability change frequently, so verify details before purchasing to ensure compatibility with your existing coaxial cable system.
Top 3 Picks for Best Antenna Lightning Arrestor
Diamond Antenna SP1000 SP-Series Lightning Arrester High Voltage Protection Device for Mobile and Base Station Antennas Prevents Equipment Damage from Lightning Strikes
4.6Editor score
Less Than 0.3 dB Loss
6000 Amps Impulse Wave
Replaceable Surge Element
Diamond Antenna SP3000 Lightning Arrester – 200W, DC-3000MHz, N-Type Female/Female, Surge Protector for Ham Radio Antennas
4.8Editor score
200W Power Rating
DC to 3000 MHz Range
N-Type Female/Female
Top 10 Best Antenna Lightning Arrestor in 2026 Compared
This side-by-side comparison highlights critical differences in impedance, connector types, and frequency ranges across all ten selected lightning arrestors to aid your decision.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Proxicast ProGrade UHF SO-239
50 Ohm Impedance
UHF SO-239 Connectors
DC Pass-Through Capability
230V Gas Discharge Tube
4.6Editor score
Editor's Choice
Diamond Antenna SP1000 SP-Series
6000 Amps Discharge
Replaceable Surge Element
Low Insertion Loss
Mobile Base Station Use
4.6Editor score
Best Budget
Proxicast ProGrade N-Male/N-Female
DC to 6 GHz Range
N-Male N-Female Connectors
50 Ohm Impedance
Wide-Band Performance
4.4Editor score
N Type Lightning Arrestor 0-6 GHz
0 to 6 GHz Range
N-Male N-Female Connectors
50 Ohm Impedance
Replaceable 90V Tube
4.7Editor score
XRDS-RF UHF Lightning Arrestor
DC to 500 MHz Range
UHF Female Connectors
Low VSWR Under 1.2
Brass Nickle Plated
4.6Editor score
Coaxial Lightning Arrester UHF Female
UHF Female Connectors
Brass Nickel Plated Body
PTFE Insulator Material
Wide Range Compatibility
4.6Editor score
Workman A28 Lightning Arrestor
PL-259 Male/Female Ends
Ground Screw on Side
CB Ham Antenna Use
Coaxial Cable Protector
4.5Editor score
RAIGEN Lightning Arrestor N-Type
0 to 6 GHz Range
N-Male N-Female Connectors
90V Gas Discharge Tube
Outdoor Weatherproof Rated
4.8Editor score
Proxicast ProGrade F-Male/Female
75 Ohm Impedance
F-Male Female Connectors
TV Satellite Use
230V Gas Discharge Tube
4.5Editor score
Diamond Antenna SP3000
200W Power Rating
DC to 3000 MHz
N-Type Female/Female
1000 V Impulse Wave
4.8Editor score
1. Proxicast ProGrade – Best Overall Antenna Lightning Arrestor
Proxicast ProGrade 230V Coaxial Lightning Arrester – UHF SO-239 / SO-239
50 Ohm Impedance
UHF SO-239 Connectors
DC Pass-Through Support
Bi-Directional Protection
This Proxicast model stands out with a strong 4.6 rating for reliable VHF and UHF protection. It features 230V gas discharge tubes to safely shunt surges to ground.
Pros
- Low RF Insertion Loss
- High Quality Construction
- Outdoor Rated Durability
- Multi-Strike Capability
- Affordable Price Point
Cons
- Requires Separate Ground Cable
- UHF Connectors Limit High Frequency
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The bi-directional protection ensures your radio stays safe regardless of surge direction. Its low insertion loss maintains signal integrity for clear communication on two-way radios.
While it requires a separate ground cable and uses UHF connectors which may limit very high frequencies, these trade-offs are standard for this type of arrester and acceptable for most ham and CB setups.
Ideal for amateur radio operators and CB users needing durable protection, this unit offers excellent value. It is a top recommendation for those prioritizing reliability without overspending.
Robust Surge Protection
The 230V gas discharge tube handles multi-strike events effectively, ensuring long-term safety for your expensive communication gear.
Simple Installation
Standard UHF SO-239 connectors make it easy to integrate into existing coaxial feedlines without needing adapters.
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2. Diamond SP1000 – Best Premium Antenna Lightning Arrestor
Diamond Antenna SP1000 SP-Series Lightning Arrester High Voltage Protection Device for Mobile and Base Station Antennas Prevents Equipment Damage from Lightning Strikes
6000 Amps Discharge
Low Insertion Loss
Replaceable Surge Element
Weather Resistant Design
The Diamond SP1000 is engineered for professional base stations and mobile setups. Its 6000 Amps impulse wave capacity offers robust defense against powerful lightning strikes.
Pros
- Replaceable Element
- Extremely Low Loss
- High Impulse Capacity
- Durable Construction
- Proven Brand Reputation
Cons
- Higher Price Point
- Specific to SP-Series Compatibility
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With an insertion loss of less than 0.3 dB, signal quality remains high. The replaceable element extends the unit's life, making it a cost-effective long-term investment.
Its higher cost may deter budget buyers, but the durability and replaceable parts justify the expense for critical systems. Compatibility with SP-Series antennas is a specific focus area.
Recommended for serious operators and commercial installations, this arrester provides peace of mind. It is a premium choice for those who demand top-tier protection and longevity.
Replaceable Element
When the surge element wears out after multiple hits, you can replace it rather than buying a whole new unit.
Low Insertion Loss
Minimal signal attenuation ensures your transmission remains strong and clear, vital for long-distance communication.
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3. Proxicast N-Type – Best Budget Antenna Lightning Arrestor
Proxicast ProGrade 230V Coaxial Lightning Arrester – N-Male/N-Female
DC to 6 GHz Range
N-Male N-Female Connectors
50 Ohm Impedance
Wide-Band Performance
This Proxicast arrester supports frequencies up to 6 GHz, making it suitable for 4G/5G modems and WiFi routers. The N-type connectors are standard for many professional installs.
Pros
- Wide Bandwidth Up to 6 GHz
- N-Type Connectors Standard
- DC Pass-Through
- Low Cost Option
- Outdoor Mountable
Cons
- Slightly Lower Rating
- Basic Build Quality
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Its DC pass-through feature allows continuous power or data transmission while still blocking dangerous surges. The price point makes it accessible for multiple points of entry.
The 4.4 rating suggests it might be less rugged than premium options, but it performs well for general consumer tech. Grounding is required for full effectiveness.
Best for protecting cellular modems or WiFi access points, this unit offers versatility. It is a practical, affordable choice for modern network setups requiring surge protection.
Frequency Versatility
Supporting up to 6 GHz covers most cellular and WiFi bands, making it a versatile choice for mixed setups.
N-Type Connectors
N connectors are more robust and weather-resistant than F-type, ideal for outdoor installations on towers or roofs.
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4. Generic N-Type – High Frequency Antenna Lightning Arrestor
N Type Lightning Arrestor 0 to 6 GHz (N-Male/N-Female) 50ohm,Protects 3G, 4G, LTE,GPS, 2.4GHz /5GHz 900MHz, Ham Other Outside Antennas
0 to 6 GHz Range
N-Male N-Female Connectors
50 Ohm Impedance
Replaceable 90V Tube
Rated 4.7 stars, this arrester offers wideband performance from DC to 6 GHz. It protects a broad range of devices including GPS, LTE boosters, and Ham radios.
Pros
- Very High Rating
- Supports Many Bands
- Replaceable Tube
- Low Insertion Loss
- Ground Lug Available
Cons
- Requires Ground Cable
- Generic Brand Quality Varies
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The replaceable 90V gas discharge tube allows for maintenance after a surge. Low insertion loss ensures signal strength is maintained for critical applications.
While it performs well, the generic branding means quality control can vary. Proper grounding is essential. Its high rating suggests good reliability for the price.
Great for protecting diverse outdoor antennas and cellular equipment. It is a strong contender for users needing high-frequency protection without breaking the bank.
Broad Device Compatibility
Suitable for everything from GPS receivers to LTE boosters, offering one solution for multiple tech needs.
Maintains Signal Integrity
Low attenuation means your data and voice signals remain clear even with the arrester inline.
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5. XRDS-RF UHF – Low Frequency Antenna Lightning Arrestor
XRDS-RF UHF Lightning Arrestor PL-259 Lightning Surge Protector UHF Female to Female Coaxial Connector for CB Ham Two-Way Radio Base Antennas
DC to 500 MHz Range
UHF Female Connectors
VSWR Under 1.2
Brass Nickle Plated
This XRDS-RF unit focuses on frequencies up to 500 MHz, perfect for CB and Ham base stations. Its VSWR under 1.2 indicates excellent signal transmission.
Pros
- Low VSWR Performance
- Brass Nickle Plated Body
- PTFE Insulator Material
- Ideal for CB Ham
- Affordable Price
Cons
- Limited to Lower Frequencies
- Requires Grounding
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The brass nickel-plated construction and PTFE insulator ensure durability and corrosion resistance. It handles surges effectively while maintaining low loss.
It is strictly limited to lower frequencies, so it won't work for high-speed internet antennas. Grounding is essential for safety. Its build quality is solid for the price.
Recommended for traditional radio enthusiasts using CB or 2-way gear. It provides reliable protection where high-frequency performance is not a requirement.
Optimized for Radio Bands
Specifically designed for VHF and UHF radio bands, ensuring compatibility with common base antennas.
Quality Materials
PTFE insulator and brass construction offer superior resistance to environmental wear compared to cheaper plastic units.
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6. Generic UHF Female – Compact Antenna Lightning Arrestor
Coaxial Lightning Arrester,UHF Female-to-Female, SO-239
UHF Female Connectors
Brass Nickel Plated Body
PTFE Insulator Material
Wide Range Compatibility
This compact arrester features brass nickel-plated construction for durability. It uses standard UHF female connectors for easy inline installation on SO-239 systems.
Pros
- Compact Design
- Nickel Plated Body
- PTFE Insulation
- Low Insertion Loss
- Easy Installation
Cons
- Standard SO-239 Only
- Ground Wire Needed
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Its PTFE insulator protects the inner core effectively. The design emphasizes low insertion loss and high interference immunity for stable signals.
While compact, it is standard for most outdoor coaxial entries. Grounding is required. It offers good value for protecting basic communication equipment.
Best for general-purpose use on radio towers. It is a reliable choice for maintaining signal integrity while protecting against surges.
Compact & Durable
Small footprint allows for mounting in tight spaces, while brass plating resists rust and corrosion.
Low Interference
High interference immunity ensures your audio and data streams stay clear even during electrical storms.
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7. Workman A28 – Classic Antenna Lightning Arrestor
Lightning ARRESTOR for CB or Ham Base Antennas – Workman A28
PL-259 Male/Female Ends
Ground Screw on Side
CB Ham Antenna Use
Coaxial Cable Protector
The Workman A28 is a straightforward arrester designed for CB and Ham radios. It features PL-259 connectors and a convenient ground screw on the side.
Pros
- Simple Design
- Integrated Ground Screw
- Compatible with CB Ham
- Easy to Install
- Low Cost
Cons
- Basic Build Quality
- Limited Features
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It serves as a basic barrier against surges, protecting your radio from damage. The design is simple but functional for older systems.
While basic compared to modern units with gas tubes, it fulfills the essential grounding role. It is very affordable but lacks advanced features.
Suitable for budget-conscious users with traditional setups. It offers basic protection where advanced features are not necessary.
Classic Connector Design
Uses standard PL-259 connectors, making it easy to fit into older antenna systems without adapters.
Simple Grounding
The side ground screw provides a convenient connection point for your ground wire.
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8. RAIGEN N-Type – Versatile Antenna Lightning Arrestor
RAIGEN Lightning Arrestor for N-Type Male to N-Type Female Outdoor Antenna Surge Protector 50 Ohm RF Coaxial Protects LoRaWAN, LoRa, WiFi, IoT, Cell Booster, 3/4G LTE, WiFi 2.4/5GHz, CB, Ham, Solar
0 to 6 GHz Range
N-Male N-Female Connectors
90V Gas Discharge Tube
Outdoor Weatherproof Rated
Rated 4.8 stars, the RAIGEN arrester offers professional-grade protection from DC to 6 GHz. It supports IoT, LoRa, and cellular boosters alike.
Pros
- Highest Rating
- Broadband Compatibility
- Professional Grade Build
- Replaceable Tube
- Weatherproof
Cons
- Requires Ground Cable
- Specific Connectors
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Its weatherproof construction allows permanent outdoor mounting. The replaceable 90V tube ensures longevity after a lightning strike.
It requires a ground cable but provides comprehensive protection for complex setups. Its high rating reflects strong performance and build quality.
Ideal for IoT builders and smart agriculture systems. It is a top choice for protecting sophisticated network equipment outdoors.
Professional Grade
Built for permanent outdoor deployment, it withstands harsh weather while protecting sensitive electronics.
Replaceable Tube
After a surge event, simply replace the gas discharge tube to restore protection without replacing the whole unit.
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9. Proxicast F-Type – TV & Satellite Antenna Lightning Arrestor
Proxicast ProGrade 230V Coaxial Lightning Arrester – 75 Ohm F-Male/Female
75 Ohm Impedance
F-Male Female Connectors
TV Satellite Use
230V Gas Discharge Tube
Designed for 75 Ohm systems like TV and satellite, this unit uses standard F-type connectors. It protects your cable internet and antenna feeds effectively.
Pros
- Matches 75 Ohm Systems
- F-Type Connectors Standard
- Bi-Directional Protection
- Low Insertion Loss
- Easy Mounting
Cons
- Only for 75 Ohm
- Grounding Required
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Its 230V gas discharge tube handles surges while maintaining low RF insertion loss. It is bi-directional for comprehensive coverage.
Ensure your system is 75 Ohm before purchasing; it is not compatible with 50 Ohm radios. Grounding is critical for performance.
Best for home entertainment setups requiring surge protection. It is a specific solution for coaxial TV and internet lines.
75 Ohm Match
Perfectly matches standard RG6 coax used for cable TV and internet, preventing signal reflections.
Surge Shunt
Directs damaging lightning energy safely to ground, keeping your TV and modem safe.
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10. Diamond SP3000 – High Power Antenna Lightning Arrestor
Diamond Antenna SP3000 Lightning Arrester – 200W, DC-3000MHz, N-Type Female/Female, Surge Protector for Ham Radio Antennas
200W Power Rating
DC to 3000 MHz
N-Type Female/Female
1000 V Impulse Wave
The SP3000 handles up to 200W with a 3000 MHz range. It is built for high-power amateur radio setups requiring robust surge protection.
Pros
- High Power Handling
- Wide Frequency Range
- N-Type Durability
- Excellent Build Quality
- Impulse Protection
Cons
- Higher Cost
- Overkill for Low Power
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Its impulse wave discharge capacity of 1000 V provides strong defense. N-type connectors ensure secure and weatherproof connections.
It may be overkill for low-power CB setups, but essential for powerful ham stations. Its build quality and performance justify the cost.
Ideal for high-power radio stations and base setups. It offers professional-grade protection for serious communication equipment.
High Power Handling
Designed to withstand high transmitter power without signal loss or overheating during operation.
Robust N-Type
N-type connectors ensure a secure fit that resists weather and vibration, ideal for permanent outdoor setups.
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Buying Guide – How to Choose the Best Antenna Lightning Arrestor
Selecting the right lightning arrestor involves matching impedance, connectors, and frequency range to your existing equipment.
Impedance Matching
Impedance must match your system to prevent signal reflection. 50 Ohm is standard for radios, while 75 Ohm is for TV and internet. Mismatched units cause data loss.
Always check your device specs to buy the correct impedance variant.
Connector Types
Connector types determine how easily you can install the unit. Common types include PL-259, SO-239, N-Type, and F-Type. Ensure the male and female ends align with your cables.
Choose connectors that fit your existing cable ends to avoid needing extra adapters.
Frequency Range
Ensure the arrestor covers the frequencies you use. Some units work from DC to 6 GHz, others only up to 500 MHz. Mismatched ranges reduce performance.
Verify the frequency limit supports all your intended bands before buying.
Insertion Loss
Insertion loss measures signal attenuation. Lower is better, typically under 0.3 dB. High loss weakens your signal over long cable runs.
Look for low insertion loss to maintain strong signal integrity.
Surge Capacity
Surge capacity defines how much energy the unit can divert. Higher impulse wave ratings protect against stronger lightning. Gas discharge tubes handle multi-strikes better.
Select a unit with high surge capacity for critical systems.
Grounding Requirements
Proper grounding is essential for all arrestors. You must connect a ground wire to the lug for safety. Without grounding, the unit cannot divert surges.
Ensure you have a reliable earth ground ready before installation.
Build Quality
Weather-resistant materials like brass and nickel plating prevent corrosion. Outdoor units should have robust housing to withstand rain and temperature changes.
Choose durable materials for long-term outdoor performance.
Replaceable Elements
Some models allow replacing the gas discharge tube after a strike. This extends the unit's life and offers cost savings. Fixed elements require full replacement.
Prefer models with replaceable parts for long-term value.
How to Use and Care for Your Antenna Lightning Arrestor
Install the arrestor between the antenna and your equipment at the point where the cable enters the building. Ensure a good ground connection to the earth.
Use quality coaxial cables compatible with the connectors to avoid signal loss. Tighten all connections securely to maintain weather resistance.
Inspect the unit periodically for signs of corrosion or wear. Replace gas discharge tubes after a major surge event if applicable.
Frequently Asked Questions
Do I need an antenna lightning arrestor?
Yes, if you have an outdoor antenna, an arrestor protects your equipment from lightning strikes. It diverts surges to ground, preventing damage. It is a critical safety investment.
What is the difference between 50 and 75 Ohm arrestors?
50 Ohm units are for radios and cellular, while 75 Ohm units are for TV and internet. They are not interchangeable as mismatching causes signal loss.
How do I ground my lightning arrestor?
Connect the arrestor's ground lug to a copper ground wire. This wire should lead to a grounded rod or electrical ground. Proper grounding is mandatory for safety.
Can a lightning arrestor prevent all damage?
While they reduce risk significantly, no arrestor guarantees 100% safety in extreme storms. Close proximity to the protected equipment improves effectiveness.
Is installation difficult?
Installation is simple, involving threading connectors and attaching a ground wire. Basic tools are usually enough, but verify compatibility before starting.
Does it affect signal quality?
Quality arrestors have low insertion loss so signal impact is minimal. Look for units under 0.3 dB to ensure clear transmission without degradation.
Final Thoughts on Choosing the Best Antenna Lightning Arrestor
Choosing the right antenna lightning arrestor depends on matching impedance, connectors, and frequency range. We highlighted options like the Proxicast and Diamond models that offer reliable protection.
Prioritize proper grounding and quality materials to ensure durability. For high-power setups, select units with high surge capacity and robust connectors.
Prices and availability change, so always verify current details before buying. Protecting your investment is always worth the small cost of a quality arrester.