How to Connect a UHF Gas Discharge Coaxial Surge Protector
Gas discharge surge protectors are popular among ham radio enthusiasts, protecting the equipment attached to the transmission tower. These small devices incorporate a small gas tube inside a metal chassis that fires when a severe over-voltage condition occurs. The act of the gas firing creates a short circuit between the antenna and equipment, sending the small amount of residual voltage to the ground rod. These convenient units are sacrificial, in most cases requiring replacement after firing.
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Instructions
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1
Rotate the coaxial cable from the back of the connected equipment counter clockwise, until it is removed from the gear.
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2
Screw the coaxial feed line into the "In" end of the surge protector. Screw the short piece of coaxial cable into the "Out" leg of the protector.
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3
Screw the other end of the short coax into the "RF In" or "Ant" coaxial threaded input on the electronics.
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Tips & Warnings
Always place the surge protector as close to the end of the coaxial feed line as possible.
Three gigahertz models have replaceable gas tubes.
Make sure to choose the right connector on the protector. Varieties include RF, BNC, TNC, and others.
Use the surge protector in conjunction with a proper earth ground. The surge protector does not replace the ground.
References
Resources
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