Grounding & Lightning Protection

PolyPhaser Coaxial Lightning Protectors

PolyPhaser Coaxial Lightning Protectors are designed for general, single-transmitter use in the 1.5 to 700 MHz frequency range. PolyPhaser protectors are available in two mounting styles: "Bulkhead Mount" protectors have a longer connector and hardware to mount it through the grounding panel. "Flange Mount" protectors anchor to a grounding panel with both connectors parallel to a flat surface. PolyPhaser Coaxial Lightning Protectors use a DC blocked specially configured gas tube design that has no DC continuity between the two center pins. PolyPhaser's multi-strike products are designed to pass RF frequencies and block all DC. These protectors appear as a DC open between surge and protected ports and offer industry-standard protection. PolyPhaser protectors are suitable for all types of antennas, even "floating" antennas that are not DC grounded. With PolyPhaser DC Blocked protectors, any slow voltage build up from wind driven rain, snow or dust, will not get to the equipment. As the protector reaches threshold for turn-on in a dc blocked circuit, it will go into a momentary soft turn-on as the gas barely ionizes and bleeds the static charge to ground. This does not create noise since it will not get to the arc mode and lasts only a short time. PolyPhaser protection devices have been chosen and specified by communications systems engineers and technicians for 24/7 service in broadcasting, commercial, military and government installations. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Trusted by Amateur Radio operators for over 40 years, PolyPhaser Coaxial Lightning Protectors are ready for your antenna system installations. They are available here, at DX Engineering.

4.98 out of 5 stars ( 62 )

$99.99

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$161.99

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!

4.84 out of 5 stars ( 116 )

$69.99

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$79.99

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 ( 22 )

$79.99

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$99.99

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 ( 76 )

$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.

4.86 out of 5 stars ( 36 )

$59.99

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

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.

3.78 out of 5 stars ( 9 )

$189.99

DX Engineering GBWM-W Copper Ground Bus Wall Mounts

DX Engineering GBWM-W Copper Ground Bus Wall Mounts are very rugged and can be used a station ground bus or as a single point ground for surge protectors. They are wide enough to mount up to four Flange Mount Coaxial Surge Arrestors, PolyPhaser or Alpha Delta. Heavy 13 gauge (.0937 in.) tempered copper prevents twisting or flexing from the weight of long coax cable runs. GBWM-W ground busses come with ground lugs, ring terminals and hardware. GBWM-W features: * Four ground point holes for 1/4 in. hardware and 1/4 in. ring terminals * Wider than the original GBWM model by 1.563 in. to accommodate larger arrestors * Can hold up to four Alpha Delta TT/ATT3G50 coax surge protectors * Can hold up to four PolyPhaser flange-mounted surge protectors * May be used indoors or outdoors * Uses the stud/nut that comes with TT/ATT3G50 units to mount them to bus bar * Supplied copper lugs handle ground wires from 14 to 4 AWG to attach to Single Point Grounds (SPG), station grounds or ground rods * Crimp ring terminals are provided for additional ground-wire connections * Wall mounting screws required are common types, like number 10 pan head or common black drywall screws (user-supplied) Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Every ham knows that providing effective station grounding is very important. DX Engineering GBWM-W Copper Ground Bus Wall Mounts provide the kind of single-point ground your equipment and coaxial runs need!

5.0 out of 5 stars ( 34 )

$70.99

ERICO Copper Grounding Bars

ERICO Copper Grounding Bars provide proper bonding; essential to create an equipotential plane between service grounds and shack equipment. This equipotential plane provides a near-zero voltage differential and serves to protect people and equipment during transient and electrical-fault events. These ERICO grounding bars have a series of 0.281 in. diameter holes that accommodate mounting many items, including Alpha Delta, PolyPhaser, and other surge-protection devices. They include stand-off mounts that deliver extreme isolation from the mounting surface. When used in tandem with ERICO ground rods and ERICO CADWELD ONE SHOT Wire to Ground Rod Clamps, there is no better grounding system available… period! These ground bars have a 1-1/16 in. standoff of their stainless mounting brackets plus a 1-1/2 in. insulator. This places the inside of the ground bar more than 2-1/2 inches from the mounting surface. There's plenty of room to work after mounting the bar. These bars may be mounted horizontally or vertically and the mounting holes in the copper bar are 8-7/8 in. on center. These grounding bars provide a convenient, reliable grounding location. Their quarter-inch thick solid-copper bar represents the ultimate in ground connections. ERICO grounding bars include insulators, stainless steel brackets, stainless steel mounting bolts, and are UL Listed. For premier grounding at your station, rely on ERICO Copper Grounding Bars from DX Engineering.

4.82 out of 5 stars ( 28 )

$105.99

DX Engineering Copper Strap Bonding Clamps

DX Engineering Copper Strap Bonding Clamps are used for easy, mechanical attachment of grounding conductors or straps to each other or to ground rods. For your high performance grounding installations, we offer several copper clamp styles. The most popular, copper strap to copper-clad ground rod clamps fit nominal 5/8 through 3/4 in. rod sizes. DX Engineering's strap-to-strap styles bond two copper straps together--perfect for extending an existing run or adding drops to your equipment--and their strap-to-wire style clamps provide a convenient way to bond heavy-gauge copper wire (6 AWG to 1 AWG) to flat copper grounding straps. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. All copper bonding clamps include 18-8 stainless steel hardware. Make a bond for better lightning protection with DX Engineering Copper Strap Bonding Clamps!

4.93 out of 5 stars ( 14 )

$48.99

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$79.99

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

4.67 out of 5 stars ( 18 )

$190.00

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!

4.67 out of 5 stars ( 21 )

$31.99

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$41.99

DX Engineering Tinned Copper Braid Assemblies

DX Engineering Tinned Copper Braid Assemblies are typically used for the proper grounding of individual pieces of electrical or electronic equipment to a common grounding bus, such as a copper strap or a thicker bus bar. DX Engineering tinned copper braid assemblies are used for industrial, commercial, and broadcasting applications inside of electrical racks, for the connection of sub-assemblies to a metal chassis or grounding point, and for any special application where a high-quality tinned copper braid assembly is required. Our assemblies are made with top-quality tinned copper braid of various widths and lengths, and most are terminated with machine-crimped and hand-soldered terminals. Some assemblies feature heat shrink tubing over the connections for strain relief and longevity. Be confident with your equipment and system grounding with the best--DX Engineering Tinned Copper Braid Assemblies.

4.95 out of 5 stars ( 91 )

$14.25

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$31.99

DX Engineering Small Utility Enclosure Kits

DX Engineering Small Utility Enclosure Kits are weather-resistant, high-impact thermoplastic enclosures, perfect for outdoor mounting of lightning protectors or other equipment. Their design ensures protection against rain and direct water spray. These DXE-UE-1P enclosures are a smaller option compared to the DXE-UE-2P enclosure. The thermoplastic housing and wire entrance materials are fire retardant, UV stabilized, and resistant to degradation from environmental contaminants, chemical fertilizers, and insecticide sprays. Additionally, the housing can be painted with latex or oil-based paints. Provide proper protection for your weather-sensitive connections. Use DX Engineering Small Utility Enclosure Kits to supply the environmental safeguard you need!

Not Yet Reviewed

$59.95

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

Alpha Delta Surge Protector Replacement Arc-Plug® Cartridges

After hundreds of protective firings of the Arc-Plug® cartridges or after a catastrophic surge, the Arc-Plug® cartridges may fail, requiring replacement. Alpha Delta Surge Protector Replacement Arc-Plug® Cartridges are designed to get you back up and running in no time. Failure will be apparent due to the fact that they fail in a shorted or "fail-safe" mode, so as not to leave the equipment unprotected. Simply unscrew the failed Arc-Plug® cartridge by gripping the knurled surface and turning counter-clockwise. Make sure that the new Arc-Plug® Cartridge O-ring is fully seated into the body of the surge protector and you're back on the air! Protect your gear with renewable surge protection. Order Alpha Delta Surge Protector Replacement Arc-Plug® Cartridges and your Alpha Delta surge protectors from DX Engineering!

5.0 out of 5 stars ( 29 )

$15.99

Georgia Copper Flexible Copper Grounding Straps

Georgia Copper Flexible Copper Straps are solid and bendable metal straps that are used to build low-inductance, high performance grounding systems. The use of these copper straps provides the best grounding systems because they have greater surface area and lower inductance per foot than the equivalent cross-section of wire. Hams find all sorts of uses for copper straps, for superior antenna feedpoint connections as well as creating a bus for grounding. Equipment racks may be bonded to ground using copper straps. Don't rely on the rack frame to provide bonding. Tie all of the power supplies, tuners, racked amplifiers, and other equipment together with low-resistance copper. Especially useful for any application outdoors and for use directly in or near soils, flexible solid copper straps will maintain a proper, low-impedance connection long after small-gauge wires and tinned copper braids have weathered and disintegrated. Copper straps are specified by communications system designers and are used extensively for above-ground and underground connections to radiators, tower and ground rods for commercial equipment rooms, sheds, and tower installations. Professional communications engineers know the value of systems that employ copper straps. They are available in various widths and at a thickness to suite your application. If you are using wire or braid at feedpoint connections or to provide grounding, equipment bonding or other critical connections for your Amateur Radio station, consider upgrading to long-lasting and solid Georgia Copper Flexible Copper Straps from DX Engineering!

4.95 out of 5 stars ( 22 )

$44.99

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$1,600.99

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)

4.61 out of 5 stars ( 18 )

$115.00

DX Engineering Tinned Copper Braid

DX Engineering tinned copper braid is available in five widths and is perfect for grounding applications. It's sold by the foot to accommodate almost any project. Contact your DX Engineering sales representative to discuss your needs if long, continuous lengths are required.

4.95 out of 5 stars ( 39 )

$0.85

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$2.25

DX Engineering 75 ohm Coaxial Lightning Surge Protectors

DX Engineering 75 ohm Coaxial Lightning Surge Protectors feature a unique design that is impedance-matched to 75 ohms and are virtually transparent to all analog or digital bi-directional signals from DC to 1.0 GHz. Manufactured by Tii Network Technologies for DX Engineering, their patented proprietary coaxial gas tube surge protectors are equipped with an integral failshort mechanism for a power-cross condition, which shunts both the coaxial cables' center conductor and sheath for a common path to ground. The dc breakdown voltage of the protector provides superior protection against transient surges, and yet is compatible with network-powered applications. They may also be used in 75-ohm receive systems up to 1.0 GHz. The protection element is designed to reset after each over-voltage event and the metallic housing of the coaxial lightning surge protectors provides necessary EMI shielding. When properly connected, DX Engineering Coaxial Lightning Surge Protectors are environmentally sealed (15 psi) to prevent the ingress of moisture and humidity encountered in broadband pedestals, vaults and stand-alone receive antenna applications. Full 360 degree Type F connectors provide superior RF performance and tighter connections.

5.0 out of 5 stars ( 8 )

$29.99

Rocket Machine Worx Window Wing Coax Feed-Through Mount Kits

Rocket Machine Worx Window Wing Coax Feed-Through Mount Kits adapt the MiniPatch or MicroPatch coaxial connector panels with standard residential window frames, enabling temporary RF cable pass-through without structural modification. The system utilizes precision-cut marine-grade HDPE wings that slide over stainless steel threaded mounting studs, providing a rigid and weather-resistant mounting surface. Laser-cut closed cell foam gaskets ensure environmental sealing between the panel sections and window frame, while stainless steel hardware and included anti-seize compound support long-term mechanical integrity and ease of disassembly. MiniPatch and MicroPatch are sold separately.

5.0 out of 5 stars ( 1 )

$109.99

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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$76.35

DX Engineering Coaxial Connection Weatherproofing Kits

DX Engineering Coaxial Connection Weatherproofing Kits provide two types of 3/4 inch tape, sealing and vinyl, that provide the right combination of reliable protection for your coaxial connections. This method provides an inexpensive water moisture and UV barrier that is fully capable for a long term installation, but is also easily and cleanly removed for maintenance. Taping, and subsequent removal and re-taping is accomplished quickly and easily with these tape kits. Each weatherproofing kit each contains two tapes; one roll of 3M Temflex™ 2155 Rubber Splicing Tape TES-2155, a conformable, self-fusing sealing tape as the water barrier, and one roll from three different grades of 3M Vinyl Electrical Tape for a UV barrier. Choose from Scotch Supper 88 Premium, Scotch Super 33 Plus or economy 3M Tartan 1710. Each kit will weatherproof six to ten double connections, depending upon the number of overlapping layers used. Select the kit below with the vinyl tape grade desired. Choose the economy kit for temporary weather protection and one of the professional grade tape kits for the long-term installation. The other type connector weather sealing that is a tar like substance is excellent for permanent commercial installations that are not intended to require removal. Instead, these tape kits also prevent water or condensation from entering your coaxial cable. They are perfect for the amateur, antenna experimenter or professional. Don't let water ruin your temporary or permanent coaxial connections. Moisture ingress could lead to damaged coax and corroded connections and cause high SWR conditions or shorts that could damage your equipment. Order DX Engineering Coaxial Connection Weatherproofing Kits to get those cable connectors sealed and plan for easy weatherproofing removal for future maintenance.

4.89 out of 5 stars ( 18 )

$13.98

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$20.98

Rocket Machine Worx CableRing Cable Feedthrough Kits

Rocket Machine Worx CableRing Cable Feedthrough Kits are expertly designed and crafted to solve the common issues of getting coax cables into the shack. With their professional-grade construction and ease of use, CableRing is the ultimate solution for professional cable management. This innovative passthrough is compatible with standard 2-inch PVC pipe (not included) and provides a precision press fit into the pipe, ensuring your cables are neatly routed through any surface, whether it's a floor, wall, or even a spaceship bulkhead. Simply use round insulation combined with steel wool to keep out critters and maintain a clean installation.

Not Yet Reviewed

$156.00