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Lightning Protector (50 Ohm): UHF Male (PL-259) to UHF Female (SO-239)

AFCLC03UMUFBO4 - Lightning Protector (50 Ohm): UHF Male (PL-259) to UHF Female (SO-239)

Lightning Protector (50 Ohm): UHF Male (PL-259) to UHF Female (SO-239)

  • Regular price $75.00 USD Sale price$39.99 USD
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  • *These fields required. [2] May exclude very large size items because we offer free shipping so our actual cost may be too high due to the size/ weight of item to be able to match the price. [3] Request must be made before order placement. Not valid after order placed. Other restrictions may apply. Please contact us for details.

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Product Description

HAM and CB Radio Gas Tube Lightning Surge Protector UHF Male PL-259 to UHF Female SO-239 bulkhead connectors for coaxial cables uses a gas discharge tube to shunt electrical surges which it transients to ground. Protect your sensitive communications equipment with this premium quality UHF Male PL259 to UHF Female SO239 Gas Tube Lightning Protector that is ideal for most HAM radio and CB radio applications. It works over all frequencies in the range of 0-3 GHz.

Operating over the DC-3 GHz frequency range, this is our premium signal booster custom class 4 inventory item with UPC 697691011370. The design features a replaceable high power gas discharge tube capsule that protects communications equipment from lightning and ESD surges.

It features a replaceable 230V gas discharge tube. 350V and 600V replacement gas tubes are also available for high power HAM radio transmitters.


  • Gas Tube Element can be replaced.
  • DC-3 GHz Broad Bandwidth.
  • Capable of handling High Surge Power.
  • Bulkhead Connector for Feedthrough or Thru-Hole Mounting.
  • DC Passing option for Powering Amplifiers Remotely.
  • Low VSWR and Loss.


  • CB Radio Lightning Protector.
  • GMRS and FRS Repeaters.
  • 2-Way Radio.
  • Outdoor Antenna Feedlines and Tower Antenna Installations.
  • Amateur Scanners and Ham Radio.


Frequency Range DC-3 GHz
VSWR < 1.2:1
Insertion Loss < 0.4 dB
Impedance 50 Ohms
Gas Tube DC Breakdown Voltage 230V+/-20% (90V, 350V and 600V replacement gas tubes also available)
Gas Tube Impulse Breakdown Voltage 1000V 20%
Gas Tube Insulation Resistance 2000 MegOhm min
Rated Surge Current 20 KA max
Connectors UHF-Male (PL-259) to UHF-Female (SO-239) Bulkhead
Dimensions 2.7 x 1.3 x 1.0 Inches (67 x 33 x 25 mm)
Max. Panel Thickness (Bulkhead Connector) 0.31 Inches (7.9 mm)


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Note: For any signal booster to help, outside signal strength must be at least -110 dB or there must be a clear line of sight to a cell tower that is within twenty miles. Before ordering, please check outside signal level in decibels or ensure that you can make and hold a phone call at any good spot outside where you can mount an exterior antenna. Square footage stated in signal booster listings is based on good signal outside. If it is any weaker, the boosted sq. ft. area will be considerably lower, accordingly.

Kevin K. of Anderson, California gave the following review:

Website is easy to use with plain straight forward info but could have had more on testing signal strength to make sure you get a strong enough booster.

Therefore, please note that stated sq. ft. coverage is based on good signal outside. For best results: If outside signal is weak, we suggest choosing the next higher sq. ft. coverage kit. If outside signal is very weak, we suggest choosing the kit with even more higher sq. ft. range bracket. Basically, higher the sq. ft. bracket, the more powerful the signal amplifier with greater Gain as well as higher uplink and downlink output power.

If outside signal is too weak (weaker than -110 dB), submit request for cell coverage solution assessment. Upon receipt of questionnaire, we will perform residential or business site survey. This will help us determine the system that is needed to improve cell coverage. Then, we will create system design using that system such as femtocell, active or hybrid distributed antenna system (DAS), or other carrier feed signal enhancing method available that will work at your signal-challenged location. Finally, we will schedule for installation after equipment and installation service quote has been approved by you, or your company.

For non installation-included kits: Most home / office / building cell signal booster kits only include bracket to mount exterior antenna on outside wall, edge of roof, or existing pipe up to 2 inches in diameter. Mounting pole not included with most kits, unless stated specifically that it is included for free. Therefore, a mounting post must be purchased separately if you will require it to mount exterior antenna.

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