This article covers RFiotasy 同軸Nタイプライトニングアレスター 0~6 GHz (N-メス.

Overview

The RFiotasy Coaxial N-Type Lightning Arrester is a surge protector designed to be placed between an outdoor antenna and your radio equipment. It covers a wide frequency range from DC to 6 GHz, making it suitable for 2.4/5 GHz Wi-Fi, 4G/LTE, GPS, 900 MHz, and ham radio systems. The connector is N-Female on both ends in a bulkhead configuration, allowing panel or wall mounting. With a 50-ohm impedance, it minimizes signal loss while diverting lightning-induced surges to ground. Its key feature is a replaceable 90V gas discharge tube. When a surge hits, the tube fires and shunts the energy to ground, protecting connected radios, routers, or amplifiers. The arrester is bidirectional, so orientation doesn't matter. It also passes DC, meaning it works with remote amplifiers or LNAs that need power over the coax.

Connectivity & Compatibility

The arrester uses N-Female connectors on both ports. You connect it in series between your antenna feed line and your equipment. It works only with 50-ohm systems; 75-ohm TV antenna setups are not compatible. Frequency coverage is DC to 6 GHz, so it supports 2.4/5 GHz Wi-Fi, 4G LTE, GPS L1/L2, 900 MHz ISM, and ham bands like 430/144 MHz. It does not support frequencies above 6 GHz (e.g., some Wi-Fi 6E 6 GHz band). Mounting is via the bulkhead flange with an included rubber O-ring for weather sealing. You must connect the ground lug to a proper earth ground for effective protection. The housing is brass with nickel plating, durable for outdoor use.

Product Info

The RFiotasy lightning arrester is sold by RFiotasy (rf-sodo) on . Pricing is around ¥4,300, very affordable for a coaxial surge protector. Warranty is not explicitly stated; standard return policy applies. The package includes only the arrester itself — you'll need to supply cables and ground wire separately. Market positioning is entry to mid-range. Compared to professional-grade units like PolyPhaser, it's much cheaper but still offers DC–6 GHz, 50 ohms, and a replaceable 90V gas tube — sufficient for personal and small-scale installations.

Best Use Cases

Outdoor Wi-Fi antenna users: If you have an external Wi-Fi antenna on your roof or balcony, this arrester protects your router or access point from lightning surges. It's a low-cost way to add essential protection. 4G/LTE external antenna users: Those using external antennas with mobile routers in weak-signal areas should install this where the cable enters the building. It significantly reduces the risk of equipment damage from nearby lightning strikes. * Ham radio operators: Works well on 430/144 MHz bands. The replaceable gas discharge tube means long-term serviceability. It is not suitable for systems above 6 GHz or 75-ohm TV antenna setups.

Things to Consider

This arrester protects against induced surges and nearby strikes, not a direct lightning hit. Proper grounding is absolutely critical — without a good earth connection, protection is severely reduced. The N-Female connectors mean you may need adapter cables if your equipment uses N-Male or other connector types. The unit is not fully waterproof; for outdoor use, wrap connections with self-amalgamating tape. ## FAQ
Q: Can I use this indoors? A: Yes, but it's most effective when installed between the outdoor antenna and the point where the cable enters the building. Q: What cable connector do I need? A: Both sides require N-Male connectors on your cables. The arrester has N-Female ports. Q: Is the gas discharge tube replaceable? A: Yes, it uses a standard 90V gas tube that can be replaced if it wears out or fails after multiple strikes.

Product Disclosure (Amazon)

  • Manufacturer: rf-sodo
  • Brand: RFIOTASY
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B07JYKPZNZ
  • Note: This article covers a manufacturer-made product based on Amazon listing details.