Grounding & Lightning Protection

DX Engineering Control Line Terminal Boards

DX Engineering Control Line Terminal Boards are designed to provide a flexible and simplified approach to control line surge protection. The DXE-CLTB is a small, 3 inch square printed circuit board (PCB) with four ten-wire compression screw terminal blocks that handle from 14 to 26 AWG conductors and up to 10A. The two outer terminal blocks are for input and output of the control wires and the two 45 degree angled ten-wire compression screw terminal blocks are for connecting the required number of individual electronic surge protection components. This provides for the choice of components to install between the control line and ground for shunt protection. Metal Oxide Varistor (MOV), Gas Discharge Tube (GDT), EMP Suppressor TVS Diodes, RF Bypass Capacitors and other wire lead components are easily connected between each control line conductor and ground with the DXE-CLTB. This open-board, no-chassis concept allows easy mounting on a single point grounding panel, to support simplified inspection and exchange of control line electronic surge protection components that should be done on a regular basis. For effective protection wherever electronic devices are used as a shunt to ground, a low impedance ground is crucial. The DXE-CLTB Control Line Terminal Board has four corner ground plane screw holes. It includes a hardware kit of four self-tapping screws, spacers and external tooth washers, for mounting the PCB on a metal grounding panel inside an enclosure. The DXE-CLTB-M Control Line Terminal Board also includes a 10-pack of MOVs. The following components are available separately for a variety protection projects: DXE-MOV-82VDC-10 Metal Oxide Varistor, Surge Protector, max. 82VDC/50VAC Pack of 10 DXE-GDT-4KV-5 Gas Discharge Tube, Surge Arrestor, 4kV, Pack of 5 DXE-TVS-1500-10 ESD Suppressor, TVS Diode, Bidirectional, 17VDC max., Pack of 10 DXE-CAP-PT1UF-10 Capacitor, Ceramic, 0.1uf, 1kV DC, RF Bypass, Pack of 10

Not Yet Reviewed

$62.99

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$69.99

DX Engineering Rotator Control Line Protectors

DX Engineering Rotator Control Line Protectors are custom made surge protectors designed for use on rotator cables - up to 8 conductors. We routinely protect power and antenna cables, why ignore rotator control cables? These protectors are also ideal for control lines of remote antenna switches and any low voltage control system where voltages are normally below 60V DC or AC. External terminals allow convenient connection while the surge devices remain securely protected inside the metal enclosure. DXE-IS-RCT features include: * Weatherproof metal enclosure with cover, mounting stud and terminal gaskets to deter water from entering the enclosure. * Terminal strips to connect up to eight rotator control wires * 1/4 in. x 20 mounting stud allowing multiple mounting configurations * Each line connection has an individual shunt MOV for maximum surge protection * Voltage spikes exceeding 82 Vdc (in either polarity) will be shunted to ground * RoHS compliant construction DXE-IS-RCT protectors are recommended to be installed on a tower leg or ground rod using an optional DXE-J-1 or DXE-J-2 Grounding Clamp or a DXE-UCGC Copper Ground Rod Clamp. The location you choose for your DXE-IS-RCT should provide a good, low-impedance ground connection. The surface to which a grounding clamp is connected should be thoroughly cleaned to a bright-colored surface and then treated with a conductive anti-oxidant coating. This procedure will minimize weather-related complications and improve conductivity for your DXE-IS-RCT. DXE-CCK Copper Cleaning Kits provide cleaning pads and copper paste which is ideal for this application. If a tower or mast is being used and is properly grounded, your DXE-IS-RCT may be connected to the base of that structure just above the grounding point. For best results, follow the installation instructions carefully. As with all electronic equipment, observe proper safety considerations. For example: Do not install your DXE-IS-RCT if there is a storm anywhere in your area. Do not adjust or touch the grounding system equipment when there is a storm anywhere in your area. Make sure all power is removed before making any adjustments or working on any ground system or grounding components. DXE-IS-RCT Specs: Surge Energy: 6500 A or 38 J (Max energy 8/20) Response Time: 10 ns typical, 25 ns max. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. For the best protection of your rotator systems, order and install your DX Engineering Rotator Control Line Protectors and keep the voltage surges off of your control lines.

3.9 out of 5 stars ( 10 )

$189.99

PolyPhaser IX DC Surge Protectors

PolyPhaser IX-1T Data Phone Line DC Surge Protectors are designed to be lightning protectors for 2-wire telephone landline trunks or DC control circuits. They are fully weatherized, modular high-speed digital data DC line protectors and incorporate one T-board for use in high-speed network and DC voltage applications. Their unique design allows them to be used in a variety of voice and data applications. PolyPhaser IX DC Surge Protectors offer fast response times and lower differential voltages and harmonic energies than gas tube protectors. -- Data Rate: Up to 25 Mbps -- Operating Voltage: 48 Vdc -- Turn-On Voltage: +/- 210 volts typical -- Max Holding Current: 400 mA @ +20 degrees C -- Operating Temperature: -40 to +65 degrees C

Not Yet Reviewed

$149.99

DX Engineering Ladder Line Surge Protector

Built by popular demand, the DX Engineering Ladder Line Surge Protector is ready to be placed in line with your balanced feedline antenna system! For many years, hams have asked us for a surge protector for use with their 300 ohm and 450 ohm ladder line fed antennas. Decades ago automotive spark plugs or arc gaps were used for shunting lightning pulses from balanced feeders to ground. But, you never really knew if they were going to work, if they really were continuing to work or if they were affecting the tuning. Here is the modern approach to providing surge protection for ladder line fed antennas. Made with components similar to those used in coaxial protectors, the DXE-LLSP uses much larger capacitors, resistors and gas discharge tubes on each leg of the ladder line to offer excellent surge protection capabilities at high SWR. These components are rated to handle 5 kW, so this protector will easily handle well over legal limit RF power at the high standing wave ratios expected on balanced line. Plus, the Ladder Line Surge Protector bleeds off the static charge that is collected on your antenna from wind driven sand, rain and snow! The DXE-LLSP Ladder Line Surge Protector is built to sustain multiple minor surges. As with any surge protector, there is no guarantee that a direct hit from lightning will be stopped. A replacement parts kit is also available to refurbish your pulse damaged protector: DXE-LLSP-RP Features of the DX Engineering Ladder Line Surge Protector: • Standard size NEMA enclosure; 4 x 4 x 2 in. nominal box dimensions; mounting tab holes on centers: 4.625 x 2.125 in. • Works with 450 ohm or 300 ohm Ladder Line and 600 ohm open-wire feeder • Internal Gas Discharge Tubes, Capacitors and Resistors • Can withstand multiple minor surges and shunts them to ground • Bleeds off static charge collected from wind driven snow, rain and sand • Weep holes allow any buildup of internal moisture to drain out • Handles well over legal limit at high SWR as expected on balanced line NOTE: The DXE-LLSP is an RF only device that does not carry DC voltage. Therefore it cannot be tested with a multimeter. It must be tested with an analyzer and a 300 ohm resistor, or by connecting an antenna feedline. If there is infinite SWR or no receive, the components have been damaged by lightning pulse energy and need to be replaced with the DXE-LLSP-RP Ladder Line Surge Protector Replacement Parts Kit. Order the DX Engineering Ladder Line Surge Protector for your balanced feedline antenna system today!

4.84 out of 5 stars ( 19 )

$85.99

DX Engineering Ladder Line Surge Protector Replacement Parts Kit

DX Engineering Ladder Line Surge Protector Replacement Parts Kit, DXE-LLSP-RP, is a kit to use if your DXE-LLSP should ever be damaged. In some locations with lots of lightning, or wind driven static charge buildup, a spare protector or this replacement parts kit is a smart investment. In a few locations you may never need one of these kits. But, here are the parts to rebuild the DXE-LLSP should the need ever arise. These are exactly the same components used in the DXE-LLSP. Along with a replacement PC board, the capacitors, resistors and gas discharge tubes provided are larger than those used in coaxial units. These components are rated to handle 5 kW, so the DXE-LLSP easily handles well over legal limit RF power at the high standing wave ratios expected on balanced line. Plus, the Ladder Line Surge Protector bleeds off the static charge that is collected on your antenna from wind driven sand, rain and snow! To refurbish your Ladder Line Surge Protector, order this kit of parts: DXE-LLSP-RP, DX Engineering Ladder Line Surge Protector Replacement Parts.

5.0 out of 5 stars ( 1 )

$29.99

Paradan Radio Antenna Disconnect Actuators for Ladder Lines

Paradan Radio Antenna Disconnect Actuators for Ladder Lines reduce the chance of station damage from lightning surges. The Antenna Disconnect Actuator automatically disconnects the antenna from your tuner and radio and grounds the antenna. It helps prevent static discharge, surges, and the effect of nearby lightning strike pulse events from damaging your tuner, radio and associated equipment. This Antenna Disconnect Actuator is excellent for protecting remote stations from lightning surge. This Antenna Disconnect Actuator operates on 10 to 18 Vdc, which may be supplied by a transceiver equipped with a DC output. Or, connect it to your power supply that you turn off when not operating. When the power is turned OFF, the antenna's two binding posts are shorted together and grounded, and shack side binding posts are disconnected. When powered ON, the Actuator reconnects the antenna for normal operating. Just insert each wire from the twin lead ladder-line into the binding post hole and secure by tightening the red and black post nuts. It comes with a Ring Terminal, four Barrel Connectors, and a Powerpole® connector pair. (® registered trademark of Anderson) Specifications of the Paradan Radio Antenna Disconnect Actuator for Ladder Lines: • Power Handling: greater than 1.5 kW • Insertion Loss: < 0.05 dB @< 29 MHz, 0.4 dB @ 54 MHz, 1 dB @ 144 MHz • Relay Operating Voltage: 10-18 Vdc • Relay Operating Current: 60 mA when turned ON to connect antenna. 120 mA for the DUAL unit • LED: Illuminates green when relays connect the antenna for operating • Relays: Two relays w/15 Amp contacts each, protected for reverse spikes. Four relays in DUAL • Case: Isolated from the binding posts, but then connects to both Antenna side binding posts when NOT energized. • Ladder Line Connectors: 5-way binding posts. Accepts up to 10 AWG wire • Relay Control Wire: 6 Ft, two-conductor 18 AWG with RCA phono plug (suitable for some transceivers) • Control Input: Diode protected against reverse polarity; RF filtered • Active Lightning Protection: Gas Discharge Tube on Antenna input, active when ON • Case Ground Stud: 1/4-20 with washers, lock washer and nut • Case: Die-cast aluminum, black paint, white print, water resistant • Dimensions (WHD): 4.8 x 2.6 x 1.6 in., Mounting tabs w/4 holes @ 5.25 in. and 1.5 in. centers

5.0 out of 5 stars ( 2 )

$130.00

DX Engineering Grounding Clamps

DX Engineering Grounding Clamps are used to connect wire grounding conductors of AWG 2 through 10 to a ground rod, tower leg or grounded pipe. These clamps are manufactured from cast bronze, a highly conductive copper alloy, and include high quality 1/4-20 stainless steel screws for maximum longevity and durability. These clamps also accept the stud from our IS-RCT control line protectors, to provide the proper protection of rotator control lines at the base of a grounded tower. Please note that pipe is measured by ID, not OD. For example, 1-1/4 pipe is much larger than 1-1/3 in. OD. DX Engineering Grounding Clamps are available in two sizes, to fit your grounding project. These are great general purpose grounding clamps to have on hand for future projects, so add a few to your order today!

4.63 out of 5 stars ( 8 )

$16.99

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$45.99

ERICO Ground Rods

Many hams are misinformed about the importance of proper grounding. It's paramount for safety and station efficiency to have an excellent grounding system. In any grounding system, the ground electrode provides the physical connection to the Earth and is the essential instrument used to dissipate current. ERICO Ground Rods provide the superior Earth connections you need! ERICO has decades of experience and offers a complete line of ground rods to meet Amateur Radio and industry needs. ERICO Ground Rods have these great features: * 99.9 percent pure electrolytic copper coating * Manufactured of high strength 1018 cold drawn steel * Specifically manufactured to work with other ERICO/CADWELD products, like ONE SHOT * Molecular bond to nickel-sealed high strength steel core * Copper coating will not crack when bent or tear when driven * Rods have a high carbon steel core and tip that provide superior strength when driving * Resist corrosion better than galvanized rods allowing for approximately 30-year service life in most soils * Minimum tensile strength of 80,000 psi and straightness tolerance of .010 in. per linear foot * State of the art manufacturing process helps ensure uniform plating thickness * ERICO name, length, diameter and part number is roll-stamped within 12 in. (304.8 mm) of chamfered end * UL logo and control number where applicable stamped on each rod for easy inspection after installation * Minimum copper coating of 10 mils on Rods Listed To Meet UL 467 * Exceed the requirements of ANSI®/UL® 467, CSA, and ANSI/NEMA GR-1 ERICO Ground Rods are a vital part of your station and antenna grounding systems. These superior ground rods will guarantee an efficient Earth ground and enhance your station's safety and efficiency. Order your ERICO Ground Rods from DX Engineering!

4.96 out of 5 stars ( 27 )

$17.29

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$88.99

Alpha Delta UHF Connector Coaxial Cable Surge Protectors

Alpha Delta UHF Connector Coaxial Cable Surge Protectors have SO-239 connectors and are rated for 200 or 2,000 watts at frequencies up to 500 MHz. They are not DC-blocked, so they will pass control voltages in applications requiring the coaxial cable to carry both RF and DC voltage. They may be easily mounted for the most effective grounding with a 1/4-20 bolt or stud (depending on model) in a single hole or as a bulkhead-mount through the grounding panel. In a study under the auspices of the U.S. Dept. of Energy, utilizing the satellite FORTE launched in 1997 carrying VHF lightning discharge sensors, it was determined that there can be damaging lightning energy emissions throughout the 30 through 300 MHz VHF spectrum. Before FORTE, it was thought that most lightning energy emissions were primarily in the VLF range. Therefore, the damage threat can be anywhere from VLF through VHF. Through the careful design of the Alpha Delta Arc-Plug® gas tube module and precision, constant impedance through-line allowing proper firing characteristics, these devices are designed to provide effective protection throughout this entire spectrum. Other surge protector designs may only utilize simple VLF filters with no gas tube backup. Additional features include: * Excellent broadband performance from DC through 500 MHz, compared to the narrow-band DC-blocked or stub designs. * Innovative impedance compensated through-line cavity design allows control voltages to pass through the device, instead of the "wire-around" requirement of DC-blocked designs. This design allows "in-circuit" cable sweeps. * Innovative, fast-acting gas tube replaceable Arc-Plug® module can be removed and replaced in the field in about one minute with no tools required, and without having to remove the protector from the circuit. The "O" ring sealed knurled knob does the trick! * The Arc-Plug® modules and connectors are "O" ring sealed for complete weatherproofing. * Effective performance. Due to the carefully designed reactance-compensated, through-line cavity and Arc-Plug® module placement, customer and government test approvals show this design is as good as, or better than, DC-blocked designs. Lightning surges do lots of damage annually. Protect your equipment from surges with Alpha Delta UHF Connector Coaxial Cable Surge Protectors from DX Engineering!

4.82 out of 5 stars ( 121 )

$69.99

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$79.99

DX Engineering Electronic Protection Components

DX Engineering Electronic Protection Components may be used in a variety of electronics and radio applications. These are wire lead components that can be used on circuit boards or in multi-purpose connection devices. Choose from the components listed for detailed specifications: DXE-MOV-82VDC-10 Metal Oxide Varistor, Surge Protector, max. 82VDC/50VAC Pack of 10 DXE-GDT-4KV-5 Gas Discharge Tube, Surge Arrestor, 4kV, Pack of 5 DXE-TVS-1500-10 ESD Suppressor, TVS Diode, Bidirectional, 17VDC max., Pack of 10 DXE-CAP-PT1UF-10 Capacitor, Ceramic, 0.1uf, 1kV DC, RF Bypass, Pack of 10 ---------------------------------------------------------------------------------------------------------------------------------- This series of protection components are well suited for the DXE-CLTB Control Line Terminal Board that provides a flexible and simplified approach to control line surge protection. The DXE-CLTB is a small, 3 inch square printed circuit board (PCB) with four ten-wire compression screw terminal blocks that handle from 14 to 26 AWG conductors and up to 10A. The two outer terminal blocks are for input and output of the control wires and the two 45 degree angled ten-wire compression screw terminal blocks are for connecting electronic surge protection components. This provides for the choice of components to install between the control line and ground to provide shunt protection. Metal Oxide Varistor (MOV), Gas Discharge Tube (GDT), EMP Suppressor TVS Diodes, RF Bypass Capacitors and other wire lead components are easily connected between the control lines and ground. For effective protection wherever shunt devices are used, a low impedance ground is critical. The DXE-CLTB Control Line Terminal Board has four corner grounding screw holes for mounting on metal standoffs to a metal grounding panel inside an enclosure. DXE-CLTB-M Control Line Terminal Board includes a 10-pack of MOVs.

5.0 out of 5 stars ( 1 )

$11.99

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$20.99

DX Engineering Utility Enclosure Kits

DX Engineering Utility Enclosure Kits are ideal for the outdoor mounting of many types of lightning protectors or other equipment. This enclosure and grounding plate kit accommodates coaxial protectors with a flange mount or bracket so connectors are parallel with the grounding plate. (Bulkhead protectors that mount the connector through a grounding panel cannot be used.) DX Engineering DXE-UE-2P Utility Enclosure kits are manufactured from weather-resistant, high-impact thermoplastic material that protects the inside components against rain and directed water spray. The housing and wire entrance grommet materials used in the enclosure are fire-retardant and UV-stabilized and resist degradation from weathering, environmental contaminants, chemical fertilizers, and insecticide sprays. The exterior of the housing may be painted with latex or oil base paints if needed to help blend into the location. Because these kits have many potential applications, no holes have been drilled in the enclosure. However, mounting holes have been pre-drilled in the aluminum mounting plate. Four of the six sheet metal screws are included to secure the mounting plate to the enclosure; the other two sheet metal screws are for mounting the copper strap clamp to the mounting plate. Watertight feedthrough couplers mount to the top of the enclosure; drilling or cutting with a hole saw is required. Eleven port openings exist in the bottom--two are large for conduit coaxial entry/exit, and nine are smaller for coaxial cable, rotor cable, Telco lines, and more. All openings are sealed by a weathertight foam insert. NOTE: The DXE-UE-2P accommodates coaxial protectors that have a Flange Mount bracket, or those that work with an accessory bracket, to mount the connectors parallel with the grounding plate. Bulkhead Mount protectors that place a connector through the grounding plate cannot be used. These kits include: * 13 in. W x 14 in. H x 4 in. D enclosure (11-1/2 in. W x 11 in. H x 3-1/8 in. D) * 6 stainless steel hex washer head slotted sheet metal #8 x 1/2 in. screws * 8 in. W x 11.0 in. H x 1/8 in. D pre-drilled 6061-T6 aluminum mounting plate * Four weathertight coaxial cable feedthrough couplers, ideal for most RG8U or RG-213 sized coaxial cable * One 2 in. x 1/2 in. x 1/8 in. thick copper strap clamp with two drilled holes Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Provide proper protection for your weather-sensitive connections. Use DX Engineering Utility Enclosure Kits to supply the environmental safeguard you need!

4.67 out of 5 stars ( 79 )

$92.99

DX Engineering UCGC-Z Universal Copper Grounding Clamps

DX Engineering Universal Copper Grounding Clamps, model DXE-UCGC-Z, are custom designed to provide a ground rod mounting solution for various types of lightning protectors commonly used for Amateur Radio. The "Z" design makes it easy to install and remove coaxial cable connectors. This ground rod clamp for surge protector mounting is ideal for permanent installations as well as for temporary installations, such as Field Day. The DXE-UCGC-Z Copper Grounding Clamp Features: - Mounts up to six protectors onto one ground rod - Fits common standard 5/8 in. through 3/4 in. diameter ground rods - Made from 1/16 in. thick Copper Alloy 110 for maximum conductivity -"Z" bends in the copper for easier installation and removal of coax connectors on protectors - Easy to assemble two-piece construction. Each plate is approximately 3-1/4 in. wide x 4-3/16 in. tall - Stainless Steel hardware is included: Four 1/4 in.-20 x 3/4 in. long hex head bolts, eight 1/4 in. flat washers, four 1/4 in.-20 Nyloc hex nuts - Using this copper clamp is faster and easier than building up the joint for an exothermic weld The DXE-UCGC-Z can easily mount up to six lightning protectors. The photo shows two DX Engineering and two PolyPhaser lightning protectors installed on a DXE-UCGC-Z mounted to a 5/8 in. diameter ground rod. Other lightning protection products can also be mounted, such as the DXE-IS-RCT Control Line Protector and Alpha Delta Lightning Protectors. Additionally, a solid copper strap from the station grounding bus bar may also be sandwiched between the copper plates of this clamp and the ground rod (not shown). An anti-seize compound such as JTL-12555 Jet Lube SS-30 Pure Copper Anti-Seize must be used on the threads to prevent galling or seizing of stainless steel hardware. All connections must be generously coated with a conductive joint compound to prevent moisture penetration and enhance conductivity. Properly weatherproofing coaxial cables and lightning protectors is important to ensure the longevity of the connection and maintain optimal performance. Prior to attaching the lightning protectors, install the coaxial cables to the lightning protectors and weather seal the PL-259 connectors using TES-2155 Temflex Rubber Sealing Tape with an overwrap of TES-06132 3M Super 33+ Vinyl Tape or 3M Scotch Super 88 Premium Vinyl Tape (TES-06143). These easily removable connector sealing tapes are now available in kits. The lightning protector bodies are not weatherproof and it is suggested to use a DX Engineering Weatherproofing Kits to permanently cover the body of the protectors. Some users have also suggested covering the entire assembly with a plastic food container or plastic trash bin As with all electronic equipment, take proper safety considerations. For example: Do not install if there is a storm anywhere in your area. Do not adjust or touch the grounding system equipment when there is a storm anywhere in your area. Make sure all power is removed before making any adjustments or working on any ground system or grounding components. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Complete your coaxial cable grounding installation with DX Engineering UCGC-Z Universal Copper Grounding Clamps.

4.78 out of 5 stars ( 40 )

$65.99

Alpha Delta N Connector Coaxial Cable Surge Protectors

Alpha Delta N Connector Coaxial Surge Protectors are rated for 200 or 2,000 watts at frequencies up to 3 GHz. They are not DC-blocked, so they will pass control voltages in applications requiring the coaxial cable to carry both RF and DC voltage. They can be easily mounted for the most effective grounding with their 1/4-20 in. stud in a single hole or as a bulkhead through the grounding panel. In a study under the auspices of the U.S. Dept. of Energy, utilizing the satellite FORTE launched in 1997 carrying VHF lightning discharge sensors, it was determined that there can be damaging lightning energy emissions throughout the 30 through 300 MHz VHF spectrum. Before FORTE, it was thought that most lightning energy emissions were primarily in the VLF range. Therefore, the damage threat can be anywhere from VLF through VHF. Through the careful design of the Alpha Delta Arc-Plug® gas tube module and precision, constant impedance through-line allowing proper firing characteristics, these devices are designed to provide effective protection throughout this entire spectrum. Other surge protector designs may only utilize simple VLF filters with no gas tube backup. Additional features include: * Excellent broadband performance from DC through 3 GHz, compared to the narrow-band DC-blocked or stub designs. Typical dB loss: 0.1@ 1 GHz; 0.2@ 2 GHz; and 0.5@ 3 GHz. * Innovative impedance-compensated, through-line cavity design allows control voltages to pass through the devices, instead of the "wire-around" requirement of DC-blocked designs. This design allows "in-circuit" cable sweeps. * Innovative, fast-acting gas tube replaceable Arc-Plug® module can be removed and replaced in the field in about one minute with no tools required, and without having to remove the protector from the circuit. The "O" ring sealed knurled knob does the trick! * The Arc-Plug® module and connectors are "O" ring sealed for complete weatherproofing. * Effective performance. Due to the carefully designed reactance-compensated, through-line cavity and Arc-Plug® module placement, customer and government test approvals show this design is as good as, or better than, DC-blocked designs.

5.0 out of 5 stars ( 24 )

$79.99

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$99.99

Diamond Antenna SP-Series Lightning Arresters

Lightning is every radio operator's nemesis; professional or amateur. During the lightning season every spring and summer, these Diamond Antenna SP-Series Lightning Arresters save many pieces of ham equipment around the world! These arresters are available with several coaxial connection schemes and with multiple RF power ratings. They're designed to pass DC current, so you can install these arresters in-line with external devices requiring coaxial DC power-feed. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. To protect your precious radio equipment, you need quality lightning protection. Then, when the thunder-boomers approach, you can sit back, relax, and let these Diamond Antenna SP-Series Lightning Arresters take the hit for you!

4.68 out of 5 stars ( 22 )

$31.99

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$41.99

Paradan Radio Antenna Disconnect Actuators

Paradan Radio Antenna Disconnect Actuators are installed in the coaxial cable that feeds the antenna. When power from your transceiver or station power supply is turned off, they automatically disconnect the antenna from your station and ground the antenna feedline. This reduces the chance of station damage from lightning while you're away. The ADA also has a gas discharge tube to protect the radio from lightning pulse damage while operating. Eliminating the wear and tear on transceiver and station connectors from repeated physical disconnection and reconnection, the Paradan Antenna Disconnection Actuator takes care of grounding antenna feedline automatically. It safely prevents static-discharge, surges, and lightning pulse effects from damaging your radio and associated equipment without having to remember to unplug the system and wear out the connectors. This is especially helpful for stations that are located on upper floors of the home where grounding is an issue. The water-resistant enclosure of the ADA may be installed in the shack at the output of the transceiver, amplifier or tuner—or outdoors in line with the antenna coaxial cable. Connect the DC cable into +12 Vdc source, either from the transceiver or power supply that is turned off when not operating. When power is on, the ADA is powered, and the antenna feedline is automatically connected. When DC is off, the antenna's coax center and shield are shorted together and grounded. The case is grounded to the antenna's coax connector but is isolated from the radio's coaxial connector. The Paradan Antenna Disconnect Actuator LED illuminates green when its two 15 ampere contacts RF relays connect the antenna. The relays have diode protected coils to eliminate reverse spikes, and they handle 1,500 watts of RF from 1.8 to 50 MHz; they also have two SO-239 (UHF female) connectors. Specifications for the Paradan Radio Antenna Disconnect Actuator, PDN-P-ADA-1: * Operating Power: 10-18 Vdc at 60 mA when turned ON to connect antenna * Insertion Loss: <0.05 dB at 30 MHz, <0.1 dB at 54 MHz * Power Handling: 1.5 kW * Control Wire: Two-conductor 18 AWG with RCA phono plug RED to center pin, BLACK to plug shell, may be lengthened or re-terminated as needed * Control Input: Diode protected against reverse polarity; RF filtered * Active Lightning Protection: Gas Discharge Tube on antenna coax input * Case Ground: 0.25 in. stud with washers, lock washer and nut * Case: Diecast aluminum, black powdercoat, white print, water-resistant * Size: 4.8 x 2.6 x 1.6 in., mounting flanges with four-hole on-center spacing of 5.25 in. by 1.50 in. * Weight: 0.81 lbs. (360g)

4.63 out of 5 stars ( 19 )

$115.99

Alpha Delta F Connector Coaxial Cable Surge Protectors

Alpha Delta F Connector Coaxial Surge Protectors are rated for 200 or 2,000 watts at frequencies up to 3 GHz. They are not DC-blocked, so they will pass control and power voltages in applications requiring the coaxial cable to carry both RF and DC voltage. They can be easily mounted for the most effective grounding with their 1/4-20 in. stud in a single hole, or as a bulkhead through the grounding panel. In a study under the auspices of the U.S. Dept. of Energy, utilizing the satellite FORTE launched in 1997 carrying VHF lightning discharge sensors, it was determined that there can be damaging lightning energy emissions throughout the 30 through 300 MHz VHF spectrum. Before FORTE, it was thought that most lightning energy emissions were primarily in the VLF range. Therefore, the damage threat can be anywhere from VLF through VHF. Through the careful design of the Alpha Delta Arc-Plug® gas tube module and precision, constant impedance through-line allowing proper firing characteristics, these devices are designed to provide effective protection throughout this entire spectrum. Other surge protector designs may only utilize simple VLF filters with no gas tube backup. Additional features include: * Excellent broadband performance from DC through 3 GHz, compared to the narrow-band DC-blocked or stub designs. Typical dB loss: 0.1@ 1 GHz; 0.2@ 2 GHz; and 0.5@ 3 GHz. * Innovative impedance-compensated, through-line cavity design allows control voltages to pass through the devices, instead of the "wire-around" requirement of DC-blocked designs. This design allows "in-circuit" cable sweeps. * Innovative, fast-acting gas tube replaceable Arc-Plug® module can be removed and replaced in the field in about one minute with no tools required, and without having to remove the protector from the circuit. The "O" ring sealed knurled knob does the trick! * The Arc-Plug® module and connectors are "O" ring sealed for complete weatherproofing. * Effective performance. Due to the carefully designed reactance-compensated, through-line cavity and Arc-Plug® module placement, customer and government test approvals show that this design is as good as, or better than, DC-blocked designs. Lightning surges do lots of damage annually. Protect your equipment from surges with Alpha Delta F Connector Coaxial Surge Protectors from DX Engineering!

5.0 out of 5 stars ( 3 )

$79.99

Alpha Delta Coaxial Switch Replacement Arc-Plugs®

Alpha Delta Coaxial Switch Replacement Arc-Plugs® are designed to reduce the hazards of lightning-induced or other high-voltage induced surges. When hit with a surge, they will short to ground, protecting your equipment, and will remain shorted and must be removed or replaced in order to continue operation. As with all lightning protection; these surge plugs will not prevent fire or damage caused by a direct lightning strike to an antenna, power lines, or other structure. Alpha Delta D4 Coaxial Switch Replacement Arc-Plugs® are direct replacements for Alpha Delta Coaxial Switch model Delta-2 and Delta-4 series switches. As when used in Alpha Delta Coaxial Switches, D4 Replacement Arc-Plugs® are rated at 1,500 watts CW and SSB PEP, ICAS, at an SWR under 2:1. Lightning surges do lots of damage annually. Don't let your sensitive Amateur Radio gear go unprotected. Order Alpha Delta Coaxial Switch Replacement Arc-Plugs® from DX Engineering!

4.92 out of 5 stars ( 13 )

$21.99

DX Engineering Coax Shield Grounding Kits

DX Engineering Coax Shield Grounding Kits provide an effective ground path away from you and your radio equipment! These coax shield kits provide a low inductance path for proper ground contact of your coax shield to the tower, top and bottom. DX Engineering Coax Shield Grounding Kits are used inline with coax terminated with UHF Male/PL-259. These strong, stainless steel brackets fit tower leg diameters from 1.0 to 1.5 in. (DXE-CSGK-150) and 1.0 in. up to 2.0 in. (DXE-CGSK-200). Each include a pair of our special DX Engineering Silver Plated UHF Flanged Double Female Bulkhead Connector Kits which provide a secure low impedance and low inductance ground. All required stainless steel hardware is included in each DXE-UHF-FDFB-KIT. For coaxial cables terminated with or Type-N Male connectors, see DXE-CGB-150 and DXE-CGB-200 Coax Grounding Brackets for use with DXE-1023-2 Type-N silver plated double female bulkhead coaxial connector pair with PTFE dielectric. Lightning protection and grounding are critical. Make a plan and complete your grounding path with low-inductance DX Engineering Coax Shield Grounding Kits for superior lightning and surge protection.

5.0 out of 5 stars ( 4 )

$58.55

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$59.55

DX Engineering Weatherproofing Kits

DX Engineering Weatherproofing Kits weatherize your outdoor connections and prevent moisture entry and corrosion with vapor wrap and high quality electrical tape. When your non-weather resistant equipment needs to be mounted outdoors, these weatherproofing kits provide needed protection. Use these kits to protect lightning protectors, coaxial connections, antenna joints, steel hardware, junction boxes and just about anything you can wrap with tape by using these kits. The non-conductive malleable vapor wrap sealant is water-impermeable and withstands temperatures from minus 65 degrees F to plus 180 degrees F without cracking. Choose from Standard, Upgraded or Ultimate kits with different grades of vinyl tape. The WK-PRO Kit has more vapor wrap material and five rolls of tape for large projects. See each kit's detailed description. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Reliable waterproofing is important to protect equipment and cable connections from damage caused by moisture penetration. Protect your equipment, handle extreme temperatures, and remain unaffected by water and UV sun rays with DX Engineering Weatherproofing Kits.

4.74 out of 5 stars ( 19 )

$15.99

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$23.99

Paradan Radio Dual Antenna Disconnectors

Paradan Radio Dual Antenna Disconnectors reduce the chance of station damage from lightning pulses. The Dual Antenna Disconnector automatically disconnects and isolates any radio equipped with two antenna ports—and it grounds both antenna SO-239 coaxial connectors. The two radio SO-239 connectors may also be used for two separate transceivers or receivers. The Dual Antenna Disconnector is excellent for protecting remote stations from lightning pulse damage. The Dual Antenna Disconnector prevents static-discharge, surges, and lightning-pulse effects from damaging your radio and associated equipment. When the transceiver is turned OFF, both antenna coax center conductors and shields are shorted together and grounded—and both coax center conductors and coax shields are disconnected from the radio. When the transceiver is powered ON, the Disconnector re-connects both coaxial cables for normal operating. Power for the Disconnector can be supplied by either the transceiver's auxiliary DC power output or by the station power supply that is turned off when not operating. For stations where the power supply is always left on, the Radio ON Sensor unit tells the Disconnector to reconnect coaxial cable when the radio is turned on. For correct operation the Dual Antenna Disconnector requires a good earth ground. The unit is supplied with a ground wire ring terminal, four wire splice connectors, and a Powerpole® connector pair. Paradan Radio Dual Antenna Disconnector Specifications: * Power Handling: Over 1.5 kW on each circuit * Insertion Loss: Less than 0.05 dB below 29 MHz; 0.4 dB at 54 MHz; 1 dB at 144 MHz * Relay Operating Voltage: 10-18 V dc * Current: 120 mA at 13.8 V, when turned ON to connect antennas * LED: Illuminates green when relays connect the antennas for operating * Relays: Four relays with 15 amp contacts each, protected for reverse spikes * Case: Grounded to Antenna connectors and isolated from Radio coaxial connectors * Control Wire: 6 ft., two-conductor AWG 18 with RCA phono plug * Control Input: Diode protected against reverse polarity; RF filtered * Active Lightning Protection: Gas Discharge Tube on both Antenna inputs * Case Ground Stud: 1/4 in. (1/4-20) with washers, lock washer and nut * Case: Diecast aluminum, black paint, white print, water resistant * Size: 6 in. x 3.8 in. x 2.2 in., mounting tabs with 4 holes spaced at 5.25 in. and 2.50 in. on-center * Weight: 1 lb. 10 oz. ® Registered trademark of Anderson Power Products

4.68 out of 5 stars ( 19 )

$190.99