RF Surge Protectors

RF surge protectors are critical components for protecting antennas, radios, and telecommunications equipment from lightning-induced surges and transient overvoltage events. Communication systems connected by coaxial cable are especially vulnerable, as lightning strikes, near-miss events, and static charge buildup can travel along the cable path and damage connected devices. Installing an inline RF surge protector helps divert damaging energy to ground before it reaches sensitive equipment.
This category includes coaxial RF surge protectors designed to allow the desired radio frequency signals to pass with minimal loss while suppressing dangerous DC and surge energy. Common designs incorporate gas discharge tubes (GDTs) housed between coaxial connectors, providing a controlled path to ground during surge events. Options are available for low-loss applications, DC block configurations, and systems requiring protection from electromagnetic pulse (EMP) or high-altitude EMP-related electrical disturbances.
RF surge protectors are typically installed at the antenna entry point, base of the antenna mast, or where coaxial cables enter a building or enclosure. While proper grounding of antennas and towers is the first step in lightning protection, surge protection devices provide an added layer of defense by interrupting and redirecting surge energy traveling along the coaxial line. Together, grounding and RF surge protection help reduce equipment damage, fire risk, and system downtime in radio, broadcast, and wireless communication installations.
FAQs
Q: Do coaxial RF surge protectors protect against indirect lightning strikes?
Yes. Coaxial RF surge protectors are designed to protect antenna systems and connected equipment from indirect lightning strikes, static discharge, and transient surges that travel along coaxial cables.
Q: How do coaxial RF surge protectors work?
Most coaxial RF surge protectors use a gas discharge tube that shorts the line during a surge event, diverting excess energy safely to ground while protecting downstream equipment.
Q: Do RF surge protectors affect signal performance?
RF surge protectors are designed to allow the intended frequency range to pass through with minimal insertion loss, preserving signal integrity while providing surge protection.
Q: Do coaxial RF surge protectors support multiple surge events?
Yes. Many coaxial RF surge protectors are designed for multi-strike capability, allowing them to return to normal operation after a surge and continue protecting against future events.
Q: Does suppressing DC surges help protect sensitive equipment?
Yes. Suppressing DC surge energy helps prevent damaging voltage spikes from reaching sensitive components, improving system stability and equipment longevity.
Why Buy RF Surge Protectors from RSP Supply
RSP Supply offers a wide selection of RF surge protectors designed for reliable coaxial lightning and surge protection in antenna, radio, and telecommunications systems. Our product range supports dependable signal transmission while helping safeguard critical communication equipment from electrical surge damage.