RF Surge Protectors

Lightening and power surges are the biggest threat to communication equipment like radio and TV antennas. Without the proper protection, a single lightening strike can travel through the coaxial cable, damage connected devices and possibly cause a fire or electric shock to surrounding people. Static charge build up and near miss lightening strikes can also create power surges and damage equipment. Installing an in-line surge protector in the path from the antenna to the signal booster disconnects the circuit in the event of a power surge.

RF surge protectors (lightning surge arrestors, lightning surge protectors or surge suppressors) are designed to protect radio and antenna installations from a power surge caused by lightning while still allowing the desired frequency to pass through the cable. Some RF surge protectors also provide protection from electromagnetic pulse or high-altitude electromagnetic pulse related electrical changes.

RF surge protectors are composed of a gas discharge tube (GDT) housed between coaxial terminals and connectors. This allows them to be mounted at the coaxial entry point of a radio site or at the base of an antenna. Grounding is provided by using a screw terminal. When a power surge occurs, the GDT shorts the line, diverting the surge through the GDT to ground.

Grounding vs. Surge Protection Grounding is the first step in lightening protection. Antennas should be ground bonded to the tower they are on and the tower should be bonded to a ground rod buried at the base of the tower. When a lightening strike occurs, the surge will travel into the ground. The lightening will also follow the coax cable into the connected devices. Surge protection devices can be installed in-line of the coax to break the connection when a sudden surge travels across them protecting the  connected devices and equipment.

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$123.75
Attachment plug with surge protection for coaxial signal interfaces. Connection: N connector, female/female
$210.00
Attachment plug with surge voltage coarse and fine protection, for coaxial signal interfaces with floating shield, signal voltage 5 V. Connection: BNC socket/plug
$42.50
Attachment plug with surge protection for antenna inputs with F connector
$221.25
Attachment plug with surge protection, for coaxial signal interfaces with floating shield. Connection: BNC socket/plug
$123.75
Attachment plug with replaceable surge protection for coaxial signal interfaces. Connection: N connector socket/socket
$148.75
Attachment plug with Lambda/4 technology as surge protection for coaxial signal interfaces. Connection: N connectors socket-socket
$161.25
Attachment plug with Lambda/4 technology as surge protection for coaxial signal interfaces. Connection: N connectors plug/socket
$393.75
Attachment plug with Lambda/4 technology as surge protection for coaxial signal interfaces. Connection: Male/female SMA connectors.
$281.25
Surge protection for antenna distributors in satellite systems. IN and OUT via F connectors, 5 channels for signals from SAT systems and terrestrial antennas, ground connection on the outside of the housing.
$123.75
Attachment plug with surge protection for coaxial signal interfaces. Connection: N connector, male/female
$210.00
Attachment plug with surge voltage coarse and fine protection, for coaxial signal interfaces with floating shield, signal voltage 5 V. Connection: BNC socket/plug
$210.00
Attachment plug with surge voltage coarse and fine protection, for coaxial signal interfaces with floating shield, signal voltage 24 V. Connection: BNC socket/plug
$171.25
Attachment plug with replaceable surge protection for coaxial signal interfaces. Connection: N connector socket/socket
$171.25
Attachment plug with replaceable surge protection for coaxial signal interfaces. Connection: N connector plug/socket
$161.25
Attachment plug with Lambda/4 technology as surge protection for coaxial signal interfaces. Connection: N connectors socket-socket
$161.25
Attachment plug with Lambda/4 technology as surge protection for coaxial signal interfaces. Connection: N connectors plug/socket
$198.75
Attachment plug with surge protection, for coaxial signal interfaces with floating shield. Connection: N connector socket/plug
$148.75
Attachment plug with Lambda/4 technology as surge protection for coaxial signal interfaces. Connection: N connectors plug/socket
$198.75
Attachment plug with surge protection, for coaxial signal interfaces with floating shield. Connection: N connector socket-socket
$123.75
Attachment plug with replaceable surge protection for coaxial signal interfaces. Connection: N connector plug/socket
$161.25
Attachment plug with Lambda/4 technology as surge protection for coaxial signal interfaces. Connection: N connectors socket-socket
$152.87
Polyphaser Satellite System Protector 300 MHz to 2.5 GHz DC Pass Lightning Protection. 50 Watt 24 VDC Pass Voltage. Max Surge of 3kA, VSWR ≤1.4:1 125 MHz to 1 GHz, Insertion Loss ≤ 0.1 dB, Turn On Voltage 24-33 Vdc.
$155.53
Polyphaser DGXZ+15TFTF-A Hybrid Multistage Coax Protector 800 MHz-2.5 GHz. DC Pass Multi-Transmitters Lightning Protection TNCF-TNCF(Surge side/Protected Side) Bulkhead Mount or Flange Mount.
$158.63
Polyphaser DGXZ+06NFNF-A Hybrid Multistage Coax Protector 800 MHz-2.5 GHz. DC Pass Multi-Transmitters Lightning Protection NF-NF(Surge side/Protected Side) Bulkhead Mount or Flange Mount.
$86.80
Polyphaser IS-B50LN-C2-MA Gas Tube Coax Protector 125 MHz-1 GHz DC Block Single Transmitter Coax Lightning Protection NM-NF(Surge side/Protected Side) Bulkhead Mount.
$127.85
Polyphaser IS-NEMP-C2 Coaxial Nuclear EMP Protector 125 MHz-1 GHz DC Block Gas Tube. NF-NF(Surge side/Protected Side) Bulkhead Mount.
$78.72
Polyphaser IS-50NX-C0 Gas Tube Coax Protector 1.5 MHz-750 MHz DC Block Single Transmitter Gas Tube. NF-NF(Surge side/Protected Side) Flange Mount.
$180.22
Polyphaser BGXZ-60NFNF-ALT Hybrid Multistage Coax Protector 40 MHz-400 MHz DC Pass Multi-Transmitters Lightning Protection NF-NF(Surge side/Protected Side) Bulkhead Mount or Flange Mount.
$78.72
Polyphaser IS-50NX-C2-ME Gas Tube Coax Protector 125-1000 MHz DC Block Gas Tube Single Transmitter. NF-NM(Surge side/Protected Side) Flange Mount.
$96.24
Polyphaser IS-B50HN-C2 Gas Tube Coax Protector 125 MHz-1000 MHz Single Transmitter DC Block Gas Tube. NF-NF(Surge side/Protected Side) Bulkhead Mount.
$138.13
Polyphaser DSXL-NS Superior Coil Inductor Coax Protector 700 MHz-2.7 GHz DC Block Multi-Transmitters High Pass Filter Protector Lightning Protection NF-SMA Female(Surge side/Protected Side)
$127.61
Polyphaser AL-LSXM-RT-ME SX Radio Frequency Superior Coil Inductor Coax Protector 2 GHz-6 GHz DC Block Multi-Transmitters RTNC Female-RTNC Male(Surge side/Protected Side)
$68.62
Polyphaser AL-LSXM-MA SX Radio Frequency Superior Coil Inductor Coax Protector 2 GHz-6 GHz DC Block Multi-Transmitters NM-NF(Surge side/Protected Side)
$68.62
Polyphaser AL-LSXM SX Radio Frequency Superior Coil Inductor Coax Protector 2 GHz-6 GHz. DC Block Loop Multi-Transmitters Micro Filter Lightning Protection NF-NF(Surge side/Protected Side) Bulkhead Mount.
$246.80
Polyphaser DSXL-T-MA Superior Coil Inductor Coax Protector 700 MHz-2.5 GHz DC Block Multi-Transmitters High Pass Filter Protector Lightning Protection TNC Male-TNC Female(Surge side/Protected Side)
$78.72
Polyphaser IS-50NX-C2 Gas Tube Coax Protector 125 MHz-1 GHz DC Block Single Transmitter Coax Lightning Protection NF-NF(Surge side/Protected Side) Flange Mount.
$55.56
Polyphaser GT-NFM-AL DC Pass Gastube Protector DC-7000 MHz with 90 Watt 80 VDC Pass Voltage. Weatherized Max Surge of 20kA, VSWR ≤1.1:1 to 3 GHz, Insertion Loss ≤ 0.1 dB to 4 GHz.
$55.56
Polyphaser GT-NFF-AL DC Pass Gastube Protector DC-7000 MHz with 80 VDC Pass Voltage. 90 Watt @ 30 MHz to 9 Watts @ 3 GHz. Weatherized Max Surge of 20kA, VSWR ≤1.1:1 to 3 GHz, Insertion Loss ≤ 0.1 dB to 4 GHz. Turn On Voltage of 150 Vdc.