Proxicast ProGrade 230V Coaxial Lightning Arrester – UHF SO-239 / SO-239
4.6Editor score
SO-239 connectors
50 ohm impedance
230V gas discharge
In this guide
Protecting your electronic equipment from sudden voltage spikes is essential for long-term reliability. A high-quality antenna lightning arrestor diverts dangerous surges safely to the ground before they reach sensitive components.
We evaluated ten top-rated models based on impedance matching, frequency range, and construction durability. Each unit was assessed for insertion loss, grounding options, and compatibility with common connector types.
Every selection includes key specs and real-world application notes to help you match the right protector to your system. Prices and availability may change, so verify details before finalizing your purchase.
Top 3 Picks for Best Antenna Lightning Arrestor
RAIGEN Lightning Arrestor for N-Type Male to N-Type Female
4.8Editor score
0 to 6GHz range
Replaceable discharge tube
Ground lug included
Diamond Antenna SP3000 Lightning Arrester
4.8Editor score
200W power handling
DC to 3000MHz
N-Type connectors
Top 10 Best Antenna Lightning Arrestor in 2026 Compared
The table below provides a side-by-side view of connector types, frequency ranges, and impedance values for every model under review.
ProductsSpecificationsEditor scorePrice
Best Budget
Proxicast ProGrade 230V UHF SO-239
SO-239 connectors
VHF UHF bands
50 ohm impedance
230V gas tube
4.6Editor score
Editor's Choice
Diamond Antenna SP1000 SP-Series
N-Type connectors
Wideband capability
Less than 0.3dB loss
6000 Amps impulse
4.6Editor score
Best Premium
Proxicast ProGrade 230V N-Male N-Female
N-Male N-Female
DC to 6GHz range
50 ohm impedance
230V gas tube
4.4Editor score
N Type Lightning Arrestor 0 to 6 GHz
N-Male N-Female
0 to 6GHz range
50 ohm impedance
90V gas tube
4.7Editor score
XRDS-RF UHF Lightning Arrestor PL-259
PL-259 connectors
DC to 500MHz
Brass construction
Less than 0.4dB loss
4.6Editor score
Coaxial Lightning Arrester UHF SO-239
SO-239 connectors
Nickel plated body
PTFE insulator
Gas discharge tube
4.6Editor score
Workman A28 Lightning ARRESTOR
PL-259 connectors
Ground screw side
CB Ham radios
Coaxial cable
4.5Editor score
RAIGEN Lightning Arrestor N-Type
N-Type connectors
0 to 6GHz range
Less than 0.1dB loss
90V gas tube
4.8Editor score
Proxicast ProGrade 230V 75 Ohm
F connectors
75 ohm impedance
TV Satellite use
230V gas tube
4.5Editor score
Diamond Antenna SP3000 Lightning Arrester
N-Type connectors
DC to 3000MHz
200W power
1000V impulse
4.8Editor score
1. RAIGEN Lightning Arrestor – Best Broadband Performance
RAIGEN Lightning Arrestor for N-Type
0 to 6GHz range
0.1dB insertion loss
90V discharge tube
50 ohm impedance
The RAIGEN Lightning Arrestor stands out for its exceptional wideband performance and professional-grade build. With a 4.8 rating, this unit handles frequencies from DC up to 6GHz, making it ideal for modern IoT devices, cell boosters, and ham radio setups.
Pros
- Extremely low signal loss
- Compatible with many frequencies
- Weatherproof outdoor build
- Includes ground lug
- Replaceable tube element
Cons
- Requires separate ground cable
- Slightly higher price
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Its insertion loss is less than 0.1dB, ensuring minimal signal degradation even at high frequencies. The replaceable 90V gas discharge tube offers multi-strike capability, providing long-term protection without needing full replacement after a single event.
While it requires a separate ground cable for complete safety, the included ground lug simplifies installation. The heavy-duty brass nickel-plated body ensures durability against outdoor elements, and the Teflon insulation protects the inner core from environmental stress.
This arrestor is best suited for users who need a versatile protector for multiple device types. Its balance of performance, durability, and modularity makes it a top choice for professional and serious hobbyist deployments.
Wideband Frequency Support
Supports 2G through 5G LTE, LoRa, WiFi, and CB bands, allowing one device to protect diverse wireless networks.
Professional Outdoor Design
Constructed for permanent outdoor mounting with weatherproof seals and a robust brass-plated connector for reliable RF continuity.
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2. Proxicast ProGrade – Best Budget SO-239
Proxicast ProGrade UHF SO-239
SO-239 connectors
230V gas tube
50 ohm impedance
Bi-directional protection
The Proxicast ProGrade SO-239 arrestor delivers reliable protection for CB and amateur radio at a very accessible cost. Its 4.6 rating reflects consistent performance in diverting high-voltage surges away from sensitive receivers.
Pros
- Affordable price point
- Solid RF performance
- DC pass-through
- Outdoor rated
- Easy installation
Cons
- Only for UHF/VHF
- Ground cable not included
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Using a 230V gas discharge tube, it shunts damaging energy to ground with very low RF insertion loss. The 50 ohm impedance matches standard amateur radio systems, ensuring minimal signal attenuation across the VHF and UHF bands.
Though it does not include a ground cable, the bulkhead design allows easy integration into existing systems. The bi-directional protection ensures safety regardless of surge direction, while DC pass-through supports powered antennas.
Ideal for budget-conscious ham operators or CB users, this unit provides essential protection without unnecessary complexity. It balances cost and function effectively for lower-frequency base station setups.
Standard UHF Compatibility
Uses SO-239 connectors commonly found on most CB and amateur radio transceivers and base antennas.
Affordable Surge Protection
Offers essential safety features for a price that fits well within entry-level amateur radio budgets.
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3. Diamond Antenna SP3000 – Premium N-Type Protection
Diamond Antenna SP3000
N-Type connectors
200W power
DC to 3000MHz
1000V impulse
The Diamond Antenna SP3000 represents top-tier protection for serious ham operators and professional installers. With a 4.8 rating, it offers robust 200W power handling and a frequency range covering DC to 3000MHz.
Pros
- High power handling
- Excellent frequency range
- Trusted brand
- Low insertion loss
- Durable build
Cons
- Higher cost
- Requires ground setup
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Designed with N-Type female connectors, it integrates easily into high-performance antenna systems. Its impulse wave discharge capacity ensures safety during severe storms, while low insertion loss preserves signal integrity for critical communications.
Although priced higher than basic models, the SP3000 justifies the cost with superior construction and reliability. It is specifically built to withstand the rigors of outdoor mounting and repeated electrical events.
For users prioritizing long-term durability and brand reputation, this arrester is a premium choice. It suits high-power transceivers and setups where failure is not an option.
High Power Capability
Handles up to 200W continuous power, making it safe for high-output amateur and commercial radio operations.
Trusted Brand Quality
Diamond Antenna is a recognized name in RF accessories, ensuring consistent performance and durable materials.
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4. Diamond Antenna SP1000 – Reliable Mobile Protection
Diamond Antenna SP1000
N-Type connectors
Less than 0.3dB loss
6000 Amps capacity
Replaceable element
The Diamond SP1000 is engineered to protect mobile and base station radios from lightning damage. Its 4.6 rating highlights consistent performance in maintaining signal integrity while diverting high-voltage spikes safely to ground.
Pros
- Mobile and base use
- Low loss
- Replaceable arrester
- Wideband capability
- Weather resistant
Cons
- Requires ground wire
- Premium pricing
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With an insertion loss under 0.3dB and impulse capacity of 6000 Amps, it offers strong protection without compromising RF quality. The replaceable surge arrester element extends the device's useful life after a strike.
Constructed from weather-resistant materials, it withstands outdoor exposure on vehicles or towers. It is designed for easy integration into existing antenna systems, ensuring dependable operation during severe weather.
Ideal for users who need reliable surge protection for vehicle or stationary setups, this model balances performance and convenience. It is a solid investment for equipment that cannot afford downtime.
Replaceable Surge Element
Features a replaceable arrester element, allowing continued use after a single strike rather than full unit replacement.
Low Insertion Loss
Ensures signal strength remains high across wideband frequencies, critical for clear communications and data transmission.
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5. Proxicast ProGrade N-Type – Best for WiFi and 5G
Proxicast ProGrade N-Male N-Female
N-Male N-Female
DC to 6GHz
230V gas tube
50 ohm impedance
The Proxicast ProGrade N-Male N-Female arrester provides effective protection for modern 4G, 5G, and WiFi systems. Its 4.4 rating reflects reliable performance in safeguarding modems, boosters, and access points from lightning-induced surges.
Pros
- 6GHz frequency range
- DC pass-through
- Low insertion loss
- Multiple device support
- Outdoor mountable
Cons
- Requires separate ground
- Moderate rating
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Covering a wide range from DC to 6GHz, it handles everything from GPS to 5GHz WiFi. The bi-directional protection and very low insertion loss ensure that signal quality remains high while electrical safety is maintained.
Its N-type connectors support secure panel or bulkhead mounting. The 230V gas discharge tube shunts damaging surges to ground, with multi-strike capability offering lasting protection.
Best suited for users with mixed connectivity needs, this model offers flexibility across cellular and wireless bands. It is a practical solution for protecting home internet or IoT infrastructure.
Broadband Coverage
Supports 900MHz radios, 4G/5G modems, and 2.4/5GHz WiFi, making it versatile for modern networks.
Bulkhead Mounting
Designed for secure panel or bulkhead mounting, allowing neat installation through enclosures or walls.
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6. N Type Arrestor – Cost-Effective 6GHz Solution
N Type Lightning Arrestor 0 to 6 GHz
N-Male N-Female
DC to 6GHz
90V gas tube
Low insertion loss
This N-type lightning arrestor delivers strong value with a 4.7 rating and broad frequency support. It protects GPS, 4G/5G, and WiFi antennas while maintaining low insertion loss for clear signal transmission.
Pros
- High rating
- Wide frequency range
- Low cost
- Easy installation
- Multi-device use
Cons
- Ground cable separate
- Basic housing
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Using a replaceable 90V gas discharge tube, it diverts surges safely to ground. Its 50 ohm impedance ensures compatibility with most outdoor antennas, and its bi-directional protection covers both surge directions.
The unit is designed for panel or bulkhead mounting, allowing secure integration. While it requires a separate ground cable, the simple structure and affordable price make it accessible for many users.
Ideal for homeowners protecting cellular boosters or outdoor WiFi access points, this model offers essential safety at a budget-friendly price. It balances performance and affordability effectively for entry-level installations.
Multi-Band Protection
Covers 3G to 5G LTE, GPS, and 2.4/5GHz WiFi in one affordable device for diverse outdoor setups.
Panel Mount Design
Allows easy panel or bulkhead installation, ideal for keeping connections secure and weatherproof.
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7. XRDS-RF UHF – Best PL-259 Low Loss
XRDS-RF UHF Lightning Arrestor
PL-259 connectors
DC to 500MHz
0.4dB insertion loss
Brass construction
The XRDS-RF UHF Lightning Arrestor provides efficient protection for CB and ham radios using PL-259 connectors. With a 4.6 rating, it ensures low signal loss and stable performance across the VHF and UHF bands.
Pros
- Low VSWR
- Nickel plated brass
- Easy install
- PTFE insulator
- Affordable
Cons
- Limited to UHF
- Ground cable needed
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Constructed from nickel-plated brass with a Teflon insulator, it offers durability and reliable RF continuity. Its insertion loss stays under 0.4dB, ensuring minimal impact on signal strength.
The unit is easy to install between an amplifier and outdoor antenna. A separate ground cable is required for full protection, and its design supports CB, ham, and two-way base stations.
Best for users with legacy PL-259 gear, this model offers quality protection at a reasonable price. It is a practical choice for entry-level or mid-range radio setups.
Low VSWR Design
Keeps VSWR under 1.2 to minimize signal reflection and maintain efficiency in base stations.
Nickel Plated Brass
Uses brass nickel plated for corrosion resistance, ensuring longevity in outdoor environments.
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8. UHF Coaxial Arrester – Simple and Durable
Coaxial Lightning Arrester UHF
SO-239 connectors
Nickel plated body
PTFE insulator
Wide bandwidth
This UHF coaxial arrester provides straightforward protection with a 4.6 rating. It diverts lightning surges using gas discharge tubes while maintaining low insertion loss and small VSWR for clean signals.
Pros
- Brass durability
- Low VSWR
- Weather proof
- Easy wall install
- Affordable
Cons
- Basic features
- Ground cable separate
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The brass nickel-plated body enhances hardness and corrosion resistance. A PTFE insulating material protects the inner core, extending service life under outdoor exposure.
Installation is simple through an enclosure wall, and it connects easily to coaxial lines. It supports a wide range of applications from GSM to walkie-talkie base stations.
Ideal for basic setups requiring essential surge protection, this model offers solid value and ease of use. It is a practical choice for protecting home or portable equipment.
Corrosion Resistant Body
Nickel-plated brass construction improves resistance to wear and corrosion in harsh outdoor conditions.
Simple Installation
Designed for quick mounting through walls or enclosures, minimizing setup time and complexity.
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9. Workman A28 – Simple CB Protection
Workman A28 Lightning ARRESTOR
PL-259 connectors
Ground screw side
CB Ham radios
Low cost
The Workman A28 Lightning Arrestor offers basic but effective protection for CB and ham base antennas. With a 4.5 rating, it is a straightforward solution for diverting surges away from sensitive radio gear.
Pros
- Very affordable
- Ground screw
- Easy install
- Basic protection
- Compact
Cons
- Basic build
- Limited frequency
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Featuring PL-259 connectors and a ground screw on the side, it simplifies installation. Users can attach it between the radio and antenna to safely direct excess voltage to earth ground.
Its simple design focuses on essential functionality without added complexity. While it lacks advanced features, it meets fundamental needs for entry-level operators.
Best for casual CB users or hobbyists on a tight budget, this unit provides essential safety. It is a cost-effective choice for protecting basic setups.
Simple Grounding
Includes a side ground screw for straightforward connection to a grounding wire or rod.
Entry-Level Focus
Provides core protection features without extra cost, ideal for basic amateur radio systems.
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10. Proxicast 75 Ohm – Best for Satellite and TV
Proxicast ProGrade 75 Ohm
F connectors
75 ohm impedance
230V gas tube
TV Satellite use
The Proxicast ProGrade 75 Ohm arrester is designed for TV, satellite, and cable internet setups. Its 4.5 rating reflects reliable performance in protecting F-type connectors from surge damage.
Pros
- F-type connectors
- 75 ohm match
- TV/Satellite use
- Low loss
- Outdoor rated
Cons
- Requires ground cable
- Not for 50 ohm
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With a 230V gas discharge tube and bi-directional protection, it shunts damaging energy to ground. The 75 ohm impedance ensures compatibility with RG6 and RG59 coaxial cables commonly used for broadcast signals.
Its DC pass-through feature supports powered outdoor equipment like satellite dishes. Built for in-line use, it maintains signal integrity while offering essential surge protection.
Best for users with satellite or cable TV antennas, this model provides essential protection tailored to their impedance needs. It is a practical choice for home entertainment systems.
F-Type Connector Match
Uses F-type connectors ideal for satellite dishes and TV antennas, ensuring a secure and standard connection.
75 Ohm Impedance
Specifically built for 75 ohm systems, avoiding mismatches that can degrade signal or damage components.
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Buying Guide – How to Choose the Best Antenna Lightning Arrestor
Selecting the right lightning arrestor requires matching impedance, connector type, and frequency range to your antenna setup.
Impedance Matching
Your arrestor must match your coaxial cable impedance. Most radio systems use 50 ohms, while TV and satellite systems use 75 ohms. Using the wrong impedance can cause signal reflections and degrade performance.
Check your device manual and cable type before purchasing to ensure proper impedance alignment.
Connector Type
Connectors must match both sides of your coaxial line. Common types include SO-239 for UHF, PL-259 for CB, N-type for high performance, and F-type for TV. Mismatched connectors require adapters that may reduce reliability.
Choose arrestors with connectors that directly match your existing setup.
Frequency Range
Ensure the arrestor supports your operating frequencies. Some are limited to VHF/UHF, while others cover DC to 6GHz for cellular and WiFi. Limited range units may attenuate modern high-frequency signals.
Select a model covering your full operating band to maintain signal integrity.
Insertion Loss
Insertion loss indicates signal attenuation. Look for values under 0.5dB for optimal performance. Higher loss weakens weak signals and affects data throughput in modern networks.
Prioritize arrestors with low insertion loss ratings for clear signal transmission.
Discharge Tube
Gas discharge tubes divert high-voltage surges. Replaceable tubes extend product life after a strike. Non-replaceable designs require full replacement after damage.
Choose models with replaceable elements for long-term maintenance savings.
Grounding Requirements
Most arrestors need a separate ground cable connected to a grounding rod. Without proper grounding, surge protection is incomplete. Some include a ground lug for easy bonding.
Plan for a dedicated ground wire and grounding rod for complete safety.
Weatherproof Construction
Outdoor arrestors must resist corrosion and moisture. Brass nickel-plated bodies and sealed connectors ensure longevity. Look for outdoor ratings and durable insulating materials.
Verify weatherproof ratings before installing on exterior walls or towers.
DC Pass-Through
Some systems need DC power to reach outdoor amplifiers. Arrestors with DC pass-through allow this while protecting against surges. Models blocking DC may require separate power injectors.
Check if your antenna setup requires DC voltage continuity.
How to Use and Care for Your Antenna Lightning Arrestor
Install the arrestor as close to the point of entry as possible. Place it between the antenna and your radio or modem to ensure surges are diverted before entering the building.
Connect a solid ground cable from the arrestor's lug to a proper grounding rod. Ensure the ground wire is as short and straight as possible to minimize resistance.
Periodically inspect the unit for corrosion, loose connectors, or damaged seals. Check grounding connections after severe storms to confirm continued functionality and safety.
Frequently Asked Questions
Do lightning arrestors actually protect against direct strikes?
They protect against induced surges and indirect strikes by diverting high voltage to ground. Direct hits usually destroy the arrestor itself, but the device protects downstream equipment.
Is grounding still necessary if using an arrestor?
Yes, grounding is essential. Without a proper ground path, the surge cannot be safely diverted, rendering the arrestor ineffective for protecting connected electronics.
Can I use a 75 ohm arrestor for a 50 ohm system?
No. Using mismatched impedance causes signal reflection and potential damage. Always match the arrestor's impedance exactly to your coax and device specifications.
Do I need to replace the arrestor after a lightning storm?
Many modern arrestors have replaceable discharge elements. However, if you suspect a strike, inspect the unit for damage or test it to ensure continued protection.
Can arrestors be used for satellite dishes?
Yes, if they are 75 ohm models with F connectors. Using a 50 ohm unit on a satellite system can degrade signal quality and fail to protect equipment properly.
How far from the radio should the arrestor be installed?
Install it as close as possible to the equipment entrance. Short ground runs reduce resistance and improve surge dissipation effectiveness.
Final Thoughts on Choosing the Best Antenna Lightning Arrestor
The RAIGEN, Proxicast, and Diamond Antenna models offer excellent protection across diverse needs from budget CB setups to high-power radio stations. Each provides reliable surge protection for different frequency ranges.
Prioritize impedance matching, grounding capability, and frequency coverage when selecting a unit. Proper installation ensures your electronics remain safe even during severe electrical storms.
Review current pricing and availability before purchasing as stock varies. Choose the model that aligns best with your antenna system and usage requirements.