Outdoor Antenna Lightning Arrester YNX-LA

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When using an outdoor antenna for your Helium hotspot, please consider installing surge protection devices on the antenna or the RF path. The electrical field of a nearby lightning strike can destroy all connected equipment (also inside the building). We bring to you the YNX Outdoor Antenna Lightning Arrester, one of the important accessories for your outdoor antenna setup!

The Surge Protector is a lightning arrester of coaxial construction. It is capable of discharging the induced current by the nearby lightning strike, saving your Helium hotspot and potentially other appliances that are connected to the hotspot too.

Note: Make sure you have another grounding wire (recommended 10 gauge copper) connected to the lightning arrester to the earth. Without the grounding wire properly connected to the earth, the lightning arrester is USELESS.

Check out the explanations from Helium Street on the lightning arrester:

Note: There are 3 different setup scenarios are suggested for the lightning arrestor. You can refer to this file for the installation guides which suit best for your condition.


  • Robust construction for outdoor usage and includes ground terminal.
  • Designed with a stress on high safety, this device has a built-in gas-charging surge arrestor element that discharges and grounds the surge at the moment the surge voltage exceeds a specified level.
  • This device makes the actions of surge discharge and restoration as repeatedly as necessary. No replacement is practically needed.
  • Should the surge arrestor element be damaged, it can easily be replaced with a new element.
  • The coaxial construction of this device assures excellent high-frequency characteristics, wide bandwidth, low loss, and VSWR.
  • 1/4 wavelength short circuit principle for good lightning protection effect. Simple structure, strong and easy installation.



  • Material
    • Inner: Brass/Au plated
    • Outer: Brass/Cu-Sn-Zn plated
    • Insulator: PTFE
    • Sealing: Silicon rubber
    • Others: Brass/Ni plated
  • Frequency Range: 0-6000MHz
  • Initial Discharge Voltage: 75/90/150/230V
  • Impedance: 50Ω
  • Connector type: N-head (J-K)
  • VSWR: ≤ 1.25
  • Peak Power: 200W
  • Insertion loss: ≤ 0.3dB
  • Peak Discharge Voltage: 1000V
  • Peak Discharge Current: 10KA/20KA
  • Lightning Protection Method: Gas Discharge
  • Interface: N Male to N Female
  • Grade of Protection: IP65
  • Weight: 120g
  • Working Temperature: -35~+85 (℃)

Note: Please allow slight error due to manual measurement. Thanks for your kind understanding.

Packing List
  • 1 x YNX Outdoor Antenna Lightning Arrester


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Tags: Coaxial Surge Protector, Antenna, Lightning Protection, Helium, The Things Network, Gateway, Hotspot, LoRa, IoT