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28 Results Found For "in-line"
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 Phillystran Steel Tail Kits
DX Engineering Phillystran Steel Tail Kits provide the appropriate transition from non-metallic to metallic guying cable at the ground end of tower guying systems. Steel Tail Kits are available for Phillystran HPTG-4000I, -6700I and 11200I Guy Lines. What is the function of the steel tail? Here is the recommendation by Phillystran, the manufacturer of HPTG-I High Performance Tower Guy non-metallic guy lines: A steel tail is a length of EHS (Extra High Strength) steel guy line connecting the HPTG-I assemblies to the turnbuckle or guy anchor. The steel tail protects the HPTG-I assemblies from damage due to brush fires, lawn maintenance equipment or vandals. The steel tail length should be sufficient to get the bottom end of the HPTG-I assembly above arm's reach, or above brush tops (if located in a marsh or tall brush area). The HPTG-I should never pass through tree limbs or be allowed to rub against poles or trees. The steel tail allows for easier guy length calculations and serves as a guy tension monitoring point, as well as a safer area to attach guy grips during guy line installation and tensioning. Eliminating the hassle of buying a length of steel cable and obtaining a special tool to cut it, DX Engineering Phillystran Steel Tail Kits provide everything needed to isolate your tower's non-metallic guy cable from harm. Three different size kits are available for different tower guying requirements provided by Phillystran guy cables 4000I, 6700I and 11200I. Here are the items included in these innovative Steel Tail kits: - 12 ft. EHS steel guy line, Galvanized, in three kit sizes, 3/16 in., 1/4 in. or 5/16 in. - Porcelain Guy Line Strain Insulator, 502 or 504 depending upon kit size - Galvanized Steel Preform Dead End Big-Grips for EHS steel guy line, two per line - Heavy Duty Thimble, galvanized steel, appropriately sized for each kit - Cable Ties, UV protected Black, four, to secure installed Big-Grip ends Note: Phillystran guy line and Preform Dead End Big-Grips for Phillystran are not provided in this kit and must be ordered separately. DX Engineering Phillystran Steel Tail Kits provide Porcelain Guy Line Strain Insulators for the top end of the Steel Tail so that the galvanized steel Big-Grips for the Phillystran and for the EHS Steel Guy Lines do not touching and make RF noise. For three different size Phillystran guy line, HPTG-4000I, -6700I and -11200I, these kits are available exclusively from DX Engineering in 3-packs for each level of tower guying.
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$79.99
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$88.99
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!
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$85.99
DX Engineering Key Line Combiner
DX Engineering Key Line Combiner – DXE-3RIGKEYLINE is another handy gadget that can take the ground-on-transmit amplifier keying lines from up to three transceivers or other devices and connect them to one amplifier or accessory. All four connectors are female RCA phono. After we came out with the DXE-KEYLINE-3 for one radio to key an amp and two other accessories, then the requests for this DXE-3RIGKEYLINE combiner came in. It really isn't surprising that many hams have multiple transceivers but only one amplifier. So, while a coax switch handles the RF, now the DXE-3RIG-KEYLINE handles the PTT keying from three radios to one amplifier. We also have a two-input, two-output combiner-splitter DXE-KEYLINE-DUAL, if that fills your needs. Each keying input of this device is guarded with a separate 45V 2A Schottky diode, providing ground-on-transmit isolation between each rig keying line. Therefore, this combiner will keep the load or voltage of any one device from affecting the others. This device is passive, meaning that it requires no power to function. It is not a transistor buffer and it has no relays. The DX Engineering Transceiver Key Line Combiner DXE-3RIGKEYLINE allows two or three ground-on-transmit keying lines inputs to key this unit's single output. It's another handy device that can be used in lots of ham shacks and it's a great gift item for the Amateur Radio operator who has everything… except one of these gems!
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$77.99
DX Engineering Transceiver Key Line Splitter
DX Engineering Transceiver Key Line Splitter – a handy gadget designed to be connected to the 'Ground-On-Transmit' amplifier keying line of a transceiver. This single-input, triple-output passive DC only unit provides multiple PTT keying lines, two for other accessories in addition to one for the amplifier. All four connectors are female RCA phono. Many special Amateur Radio devices, from receive accessories to simple phasing units and even automatic antenna switches, need to use the same T/R keying line as your amplifier. But they don't have a keying line pass-through for the amplifier. The Transceiver Key Line Splitter is that handy item that is needed in almost every shack! It's a great gift item for the ham who has everything! Developed by Ed, K8IV, you can think of it as an "IV" line for your radio's amp keying output, allowing more than just an amplifier to switch when your transceiver goes to transmit. Each keying output of this device is guarded with a separate 45V 2A Schottky diode, providing ground-on-transmit isolation between each accessory keying line. Therefore, this splitter will keep the load or voltage of any one device from affecting the others. But, the KEYLINE-3 input depends upon the voltage and current rating of your transceiver's transistor or relay keying circuit for an amplifier, so check your manual for the total that it will safely handle. Most accessory keying lines send 13.8 Vdc at only a few milliamps, so this combination typically works without issue. The KEYLINE-3 is passive, meaning that it requires no power to function. It is not a transistor buffer and it has no relays. We really want to call it the "Key Line 3.14" - (key line pi). You know… three outputs from one input with a total of four phono female connectors. But we can't call it a "pie" because someone might think they are buying some kind of non-raspberry micro-PC or something! No, it's just a splitter. So, here's the DX Engineering Transceiver Key Line Splitter with ground-on transmit for each port. Get your slice today!
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$79.99
DX Engineering Key Line Combiner-Splitter
DX Engineering Key Line Combiner-Splitter – DXE-KEYLINE-DUAL is yet another handy gadget that can take two ground-on-transmit amplifier keying lines from up to two transceivers or other devices and connect them to two amplifiers or accessories. All four connectors are female RCA phono. After we came out with the DXE-KEYLINE-3 for one radio to key an amp and two other accessories, then the requests for the DXE-3RIGKEYLINE Combiner and this DXE-KEYLINE-DUAL two-rig to two amp combiner-splitter came in. It really isn't surprising; some hams have two radios and two amplifiers or an amp and an accessory that both need to be keyed. While a couple of coax switches can handle the RF, now the DXE-KEYLINE-DUAL handles the PTT keying from two radios going to two amplifiers or to one amp and one accessory. Each keying input and output of this device is guarded with a separate 45V 2A Schottky diode, providing ground-on-transmit isolation between each keying input and output line. Therefore, this combiner-splitter will keep the load or voltage of any one device from affecting the others. This device is passive, meaning that it requires no power to function. It is not a transistor buffer and it has no relays. The DX Engineering Transceiver Key Line Combiner-Splitter DXE-KEYLINE-DUAL allows two ground-on-transmit keying lines inputs to key this unit's two outputs. It's another handy device that can be used in lots of ham shacks and it's a great gift item for the Amateur Radio operator who has everything… except one of these gems!
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$79.99
DX Engineering HF QRP Bandpass Filters
DX Engineering HF QRP Bandpass Filters are designed to tightly confine both transmitted and receive signals to one specific Amateur band, these filters significantly reduce out of band noise, resulting in a noticeably lower noise floor and improved weak signal reception. In multi operator contest or portable operations, they deliver the essential isolation needed to eliminate image and harmonic interference, ensuring clean mono band performance even in close quarters environments. Each filter features a sharp roll off just outside the band edges, providing exceptional rejection of adjacent band signals and maintaining maximum operating efficiency for QRP applications. Offered for the 80, 40, 20, 15, and 10-meter amateur bands, they install easily in line with the coax feedline using the BNC connectors provided on each end. With power ratings of 20 watts SSB and 5 watts digital, they are ideal for QRP enthusiasts participating in multi operator events such as Field Day, POTA, and SOTA.
Not Yet Reviewed
$69.99
DX Engineering Yagi Antenna Hairpin Matching Systems
DX Engineering Yagi Antenna Hairpin Matching Systems are a convenient way to match the feed-point of a low-impedance Yagi design to 50 ohms. Then a 1:1 balun fed with 50-ohm coaxial cable may be used for optimal beam antenna performance and cancellation of RFI-causing common mode current. The DX Engineering Yagi Antenna Hairpin Matching Systems are balanced and easy to tune. They feature an upgraded electrical and mechanical design and are easily installed and tuned in as little as 10 minutes. They have enough capacity for almost any HF through 6 meter high performance Yagi design. Depending on your Yagi design, they include all of the hardware items that you need to match your Yagi antenna to a 50 ohm feed line -- without the need for drilling holes. If your Yagi does not have a split driven element (insulated from the boom), you will need to add the proper-size DX Engineering Insulated Boom-to-Element Bracket and DX Engineering Boom-to-Element Bracket Hardware Kit. Depending on the driven element diameter, you may also need DX Engineering Element Adapters. Different models cover most Yagi boom sizes and they are easily installed on the boom and fastened to the Yagi's split driven element with clamps. These same clamps may also be used for the balanced connections to the balun that handles the unbalanced coaxial cable. Hairpin Matching System Background: Many directly-fed Yagi antenna designs for HF and 50 MHz that are optimized for the best gain and front-to-back performance have feed-point impedances of approximately 20 to 25 Ohms, at resonance. Obviously, this will not allow a direct connection to a 50-ohm feedline without a serious mismatch (2:1 or more). There are various ways to match the driven element to the feed-line successfully; Gamma Match, T-Match, and the Hairpin (aka Beta Match) are favorites. The Gamma match is an outdated, unbalanced system that typically distorts the antenna radiation pattern. The T-match is basically two Gamma Match systems on either side of the boom, which may correct the imbalance, but is a mechanical nightmare and is difficult to tune correctly. In a superior-balanced Yagi feed system, the driven element must be insulated from the boom and it must be split at the boom so that the driven element halves are also insulated from each other, like a dipole. A balanced Yagi can make use of a balun for balanced distribution of RF currents and a proper, predictable radiation pattern. While the hairpin has been popular with radio operators for years, DX Engineering Yagi Antenna Hairpin Matching Systems improve on the classic design by using rods that are parallel to the boom. You can quickly match your Yagi antenna by repositioning the boom clamp and shorting bar along the boom and hairpin rods, so the antenna is easier to adjust for minimum SWR than conventional wire-loop hairpins. DX Engineering Yagi Antenna Hairpin Matching Systems also add rigidity, offer better protection against ice and wind, and add a professional appearance. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Improve your Yagi feed-point matching with DX Engineering Yagi Antenna Hairpin Matching Systems and accessories!
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$71.99
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$87.99
DX Engineering Radial Wire Metal Anchor Pins
DX Engineering radial wire metal anchor pins are perfect for fastening radials below the grass line to eliminate the risk of damaging your radials during lawn maintenance. They are manufactured from 11-gauge steel and are 6 in. long to help keep the cables buried properly.
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$59.99
DX Engineering Super Duty Saddle Clamps
DX Engineering set new standards over ten years ago with the introduction of the industry's best clamps for mounting antennas and element tubing. DX Engineering Super Duty Saddle Clamps are available to fit 2.00, 2.50 or 3.00 inch OD tubing with ultimate gripping power. Commercial and industrial engineers and installation technicians all over the world have discovered a diverse range of applications for DX Engineering Super Duty Saddle Clamps. Super Duty Saddle Clamps are designed to be used where maximum torque handling is required on aluminum, steel or stainless steel tubing. Conceived for use by builders of large and heavy Yagi antennas and Log Periodic arrays, these clamps are made in sizes that securely fit the outside diameter of tubing for mounting to a flat plate or surface. Their wider gripping surface equals superior clamping power! Perfect for antenna construction and mounting, or wherever standard U-bolt saddle clamps and other torque-control products have proven inadequate, Super Duty Saddle Clamps provide maximum grip on booms, masts and element tubing. Unlike stamped or machined-type clamps, Super Duty clamps are cast from a rugged aluminum that grips tubing with a special textured surface and are sized for an incredibly secure fit that resists torque, wind and weather. Super Duty Saddle Clamps include two cast aluminum saddles (two halves) and a stainless steel reinforcement plate for high strength and superior corrosion resistance. Due to the wide diversity of clamping applications where Super Duty clamps are beneficial, mounting hardware is NOT included. However, a complete line of Armor-Coated and Stainless Steel Hex Bolt Hardware Sets are available for top performance in most mounting applications. Click "More Detail" to see additional information. Super Duty clamp mounting applications on a 1/4 in. plate require a bolt set, as indicated in the chart linked in the Documentation tab on the part detail page. Our tradition of innovation continues with the addition of narrower solid saddle clamps, our DX Engineering Heavy Duty Saddle Clamps, available to fit tubing with Outside Diameter (OD) inch-sizes of 0.75, 1.00, 1.25, 1.50, 1.75, and 2.00. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Plan your next project with the best clamps available... period. DX Engineering Super Duty Saddle Clamps are ready to provide superior performance for your antenna, mast or other tubing mounting application.
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$53.99
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$61.99
DX Engineering Mast Top Mounting Plate
DX Engineering Mast Top Mounting Plate DXE-MTMP is a multi-purpose 16 x 5.1 inch (406.4 x 129.5mm) aluminum plate, 0.25 inch (6.35mm) thick, with a long edge flange bend 1.5 inch (38mm) deep for reinforcement. It is drilled for specific DX Engineering Stainless Steel V-Bolt Saddle Clamps and U-Bolt Saddle Clamps. A total of four clamps are required, which are sold separately for flexibility. This versatile, rugged plate and the optional clamps combine to add a strong extension mast above and in line with the original larger mast. This plate makes it easy to add a mast top antenna, electronic device or a strut tube for a boom support truss above a directional antenna. The DXE-MTMP mounts a smaller, short piece of tubing with a 1.000 to 1.500 inch (25.4 to 38.1mm) OD (outside diameter) above a larger mast or mounting tubing or pipe of either 1.00 to 2.00 inch (25.4 to 50.8mm) OR 2.375 to 3.000 inch (60.3 to 76.2mm) OD. This is the mounting plate now supplied with the DX Engineering XB-5 Hex Beam HF Antenna, DXE-XB-5-MMK. The DXE-MTMP can be used to remount an existing Hex Beam, and it is sold here separately for alternative clamp choices. As shown in the images, the DXE-MTMP reinforced plate has two pairs of upper holes with 6 in. (152.4mm) vertical spacing to use either of these DX Engineering Saddle Clamps: Two DXE-SSVC-150P for an upper steel mast mounting a range of 1.00 to 1.50 in. (25.4 to 38.1mm) OD, OR Two DXE-SAD-150A for aluminum or steel tubing that is exactly 1.500 in. (38.1mm) OD. Two lower pairs of holes also have 6 in. (152.4mm) vertical spacing. Use either of these V-Bolt Saddle Clamps: Two DXE-SSVC-2P for a 1.00 to 2.00 in. (25.4 to 50.8mm) OD steel mast, OR Two DXE-CAVS-2P for 1.00 to 2.00 in. (25.4 to 50.8mm) OD aluminum mast, OR Two DXE-SSVC-3P for a 2.375 to 3.000 in. (60.3 to 76.2mm) OD steel mast. Each mast requires about 8 in. (~200mm) of clamping length. Internal reinforcement of aluminum tubing or double wall thickness is encouraged. NOTICE: A total of FOUR DX Engineering Saddle Clamps are required, two for each steel or aluminum mast tubing or pipe. Other brand general hardware u-bolts will not fit this plate. Holes are drilled for the specified DX Engineering Saddle Clamps only. The user is responsible for appropriate and safe mechanical installation. No data is available for loading strength or suitability of use.
Not Yet Reviewed
$50.99
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!
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$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.
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$65.99
DX Engineering LPFC-BNC Low Power Feedline Chokes
DX Engineering LPFC-BNC Low Power Feedline Chokes are intended to be placed in line with coaxial cable fed antennas and equipment used for portable operations, including POTA and SOTA activations. The DXE-LPFC-BNC coax wound toroid achieves an amazing common mode impedance (CMI) curve, with an RF choking capability that far exceeds the CMI of 'a-few-beads-on-coax' product that is offered by other suppliers. Actually, these "Low Power" Feedline Chokes can be used in any station that runs less than 250 watts SSB, 100 watts CW or Digital. ________________________________________ DX Engineering Low Power Feedline Chokes features and benefits: - A unique, lightweight form, with clear heat shrink over the choke* - Light enough to hang inline at the feedpoint of any portable HF antenna. - BNC female connectors for easy connection to portable antennas and gear. - Much higher CMI that other portable, low power chokes, especially across the 40 through 6 meter bands. - Frequency range of 1.8 through 54MHz. - RF Power Handling up to 250 watts PEP SSB, 100 watts CW and Digital (at SWR <2:1). - Recommended for general use to isolate either end of a coaxial cable. * Not intended for permanent outdoor use unless mounted inside a weatherproof enclosure. ________________________________________ These chokes are ideal for use at any HF transceiver or receiver antenna connection, portable, mobile or base. In most cases, DXE-LPFC-BNC prevents RFI, stops stray RF and noise on the feedline from getting into the receiver that would cover up weak signals, and improves efficiency of the antenna system. For any station, including POTA and SOTA, mobile and base, DX Engineering Low Power Feedline Chokes keep the RF controlled.
Not Yet Reviewed
$59.99
DX Engineering ISO-PLUS Ethernet RF Filters
DX Engineering ISO-PLUS Ethernet RF Filters are very effective EMI Suppressors that are quickly and easily connected inline on Cat5e or Cat6 network cables. Their patented* design provides common mode RF interference and EMI noise filtering of radio frequencies from well below 1 MHz to 100 MHz and beyond. DX Engineering ISO-PLUS Ethernet RF Filters have no effect on throughput; Ethernet data signal levels and speed remain unchanged. *US Patent No. 11,211,679 B2 Electromagnetic interference (EMI), also known as RF interference (RFI), can be imposed onto your received radio and data signals from many electronic devices normally found around a residence, a radio room or a business network. Areas of major concern are the Gigabit Ethernet Cat5(e) and Cat6 cables used for network (LAN) connections between personal computers, printers, multi-port switches, cable modems, routers and radio transceivers, and between many other devices. DX Engineering ISO-PLUS RF filters, installed on both ends of Ethernet cables, work two ways. First, they can mitigate RF interference caused to the Ethernet connected device. Second, they can reduce interference to radio receivers and other Ethernet devices that is caused by RFI or EMI generated by an Ethernet connected device. ISO-PLUS filters are sold in pairs and are normally installed at each end of an Ethernet cable; one filter at the RJ-45 Ethernet plug of the first device and the other filter at the RJ-45 Ethernet plug of the second device. Each ISO-Plus comes with one six inch shielded RJ-45 patch cable (color may vary). They are designed to be installed in pairs; offered in a 2 filter package DXE-ISO-PLUS-2 or a 10 filter package DXE-ISO-PLUS-10. Click "More Details" below for additional information. DX Engineering ISO-PLUS Ethernet RF Filters are an important tool to improve productivity and radio reception of weak signals. "If you can't hear them, you can't work them." Order ISO-PLUS Ethernet RF Filters exclusively from DXEngineering.com
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$81.99
DX Engineering Transceiver Amplifier Keying Cables
DX Engineering Transceiver Amplifier Keying Cables connect the "ground on transmit" or contact closure provided by the radio that is required to make an HF amplifier switch from "receive mode" to "transmit and amplify mode" when using PTT (push-to-talk), VOX or break-in CW keying. DX Engineering Transceiver Amplifier Keying Cables are made for specific transceiver models that have special DIN or mini-DIN connector accessory ports which provide the transceiver's only connections for linear amplifier keying. One type of amplifier keying cable has one RCA phono plug for the amplifier relay jack, which is all that is needed. When the transceiver PTT (push-to-talk) is keyed, the RCA plug center pin is connected to the shield (and chassis ground in most cases) to key the amp relay or its solid state keying circuit. Instead of a direct connection to the amp relay, the RCA plug may be connected to the keying input of an accessory device (DXE-KEYLINE-3, DXE-RTR-2 or DXE-NCC-2), amplifier keying interface (DXE-SV-KR or legacy Ameritron ARB-704 or KD9SV Products SV-KR) or other amp keying line interrupt device, such as a meter or an array controller. Each has a keying input and a keying output for the amplifier relay or another accessory. Another type of amplifier keying cable has two RCA phono plugs, one RED plug for the amplifier relay jack and one WHITE plug for ALC (Automatic Level Control) voltage from the amplifier. The legacy ALC connection does not need to be used with present era solid state transceivers and most modern amplifiers. ALC was required for use on transmitters with tube finals. Some modern amplifiers do not have an ALC output connector. If the amplifier does not have ALC it is okay to leave the WHITE plug disconnected. Order your DX Engineering Transceiver Amplifier Keying Cables to connect to your transceiver accessory port for keying amplifiers, sequencers, receive-transmit interfaces, buffer relays, and other accessories. NOTE: To enable the function of this keying cable, some late model Kenwood transceivers require menu activation of the amplifier keying circuit.
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$51.99
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$59.99
DX Engineering Receive Feedline Voltage Injectors
DX Engineering Feedline Voltage Injectors, DXE-FVI-1, are high-quality bias-tee devices that place direct current onto a receive antenna system's coaxial cable while preventing DC from reaching the Radio port. These FVI-1 voltage injectors are used to power active accessory devices, such remote relays, switching systems, and preamplifiers. These are the original equipment FVI-1 units provided with single DX Engineering Active Receive Vertical antenna models. Voltage is applied via the 2.1mm power connector to the receive antenna feedline F connector. The RCA phono jack connects to the receiver input with that DC voltage blocked, while passing RF from 100 kHz to 30 MHz. Various RCA phono plug adapters for different RF cable connectors are available in Suggested Parts. Two DXE-FVI-1 feedline voltage injectors may be connected at opposite ends of a feedline to provide DC voltage on the transmission line for your own custom application, keeping the input and output RF devices isolated from the voltage. The included 120V AC 60 Hz wall transformer power supply may be connected to the 2.1mm power connector may to place approximately +12 volts DC on the coaxial cable center conductor, with the coaxial cable shield used as the negative ground return. A different station power supply, 1-16 VDC, may be used with an in-line, 1 Ampere, fast-blow fuse for various devices. DX Engineering feedline voltage injectors are ready for your "DC power on the coax" needs! Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. When you need to inject a DC voltage onto a 75 ohm coaxial cable used for receiving, remember the DX Engineering Feedline Voltage Injector!
Not Yet Reviewed
$99.99
DX Engineering OSL Calibration Sets
DX Engineering OSL Calibration Sets provide the high quality standards required to take advantage of the Open-Short-Load Calibration capability on specific RigExpert Analyzer models, AA-55ZOOM and higher. The advantage of this ability is to adjust for the coax cable being used, so the analyzer will display the "true" characteristics of the antenna under test, as if the analyzer were connected directly to the antenna feedpoint. The inherent analyzer calibration has its "reference plane" set to the analyzer connector. However, the advanced RigExpert analyzer models allow "recalibration" to be toggled on, to use these Open-Short-Load calibration standards to reset the reference plane. Calibrating with these standards at the far end of any 50-ohm coaxial cable assembly subtracts the electrical parameters of that coaxial cable and its specific length, a process referred to as "nulling" the cable. This allows the analyzer's measurement reference plane to be moved to the far end of that transmission line for accurate measurement of any antenna in its proper operating location. DX Engineering OSL Calibration Set standards are built into high quality silver-plated chassis mount SO-239 (UHF female) connectors. They are self-explanatory in their appearance. The Open standard has no connection from center to shield, the Short standard has a short circuit tab soldered from center to shield and the Load standard has a shroud over a potted, extremely accurate, 50-ohm load resistor. They include a beaded tie to keep them together in your analyzer tool kit. The procedure for using the Open-Short-Load standards is described in the applicable RigExpert manual Annex titled Calibration. To reset the reference plane of the analyzer to the end of a coaxial cable, in order to accurately measure an antenna, perform an Open-Short-Load calibration on the specific coaxial cable assembly to be used. 1. Select Calibrate in the Main Menu (or press F+2 keys) 2. Follow the on-screen three step instructions, sequentially connecting the Open, Short and Load standards to the opposite end of the coaxial cable to be used. 3. To apply calibration to any sweep, toggle on or off that specific cable null calibration by pressing F+2 and the "CAL" icon will appear at the bottom corner of the analyzer screen.
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$65.99
DX Engineering Multi-Band Dipole Antennas
DX Engineering Multi-Band Dipole Antennas are designs that are rugged, yet lightweight. Using a tuner, they are usable to 30 MHz and come complete with the wire elements, ladder feedline, center T support, and end mount brackets. These antennas are built using the highest quality components. They use 14 AWG stranded-copper, PVC jacketed elements for flexibility and strength and 100 ft. of 18 AWG 300-ohm 0.88 Velocity Factor ladder lines that are UV-resistant. Stainless steel hardware is included. Often, a 4:1 balun is suggested for multi-band dipoles; however, the best balun to use for this application is a 1:1 ratio. The 1:1 baluns provide better balance, have lower loss, and are more tolerant to load impedance and balance variations than other baluns. A tuner balun is not included in the dipole antenna kits and is available separately. The dipole center T support has pre-drilled holes for the attachment of the wire elements, feedline, and support or messenger lines. The center support top hole is used for the attachment of a "messenger line" that can be strung above the antenna wire and is used to provide support for the antenna wire and feedline. The use of the messenger line, which is strongly recommended but not included, will reduce the stress on the element wires and keep the antenna from stretching over time, which will change its resonant frequency. This line can be thin Synthetic Textile rope available from DX Engineering, which has a high breaking strength. Ideally, it should attach to the same structure used for the dipole, only above it, forming at least a 30 degree angle between the dipole and the messenger line. For further information and to decide the amount of rope you will need, please read the included instructions and check your wire antenna area of construction. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. When you lack the room for more than one antenna or need a multiband antenna for band agility, consider one of these DX Engineering Multi-Band Dipole Antennas as an elegant and economical solution!
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$93.99
DX Engineering Pretuned Quarter-Wave Phased Array Cables
DX Engineering Pretuned Quarter-Wave Phased Array Cables are ready to go into your phased array for 80 or 40 meters. These RG-11U coaxial cable assemblies are electronically tuned during production to 3650 kHz and 7100 kHz, the two most popular phased array frequencies. Pretuned Quarter-Wave Phased Array Cables ensure optimum pattern control and gain from your phased antenna array. They are available individually, in pairs and in four-packs, all terminated with soldered silver-plated PL-259s. These cable assemblies are exactly as required for many 80 and 40 meters phased arrays including Comtek Hybrid Four Square Arrays, DX Engineering TFS4 Four Square Arrays, as well as DX Engineering Dual Vertical Arrays. DX Engineering Pretuned Quarter-Wave Phased Array Cables are made from the highest quality waterproof PE jacketed, direct-burial RG-11/U 75-ohm low-loss foam coaxial cable. They are called "phasing feed-lines" because they are one quarter wavelength long electrically, which differs from the free-space dimension by the velocity factor of the cable. This RG-11U coaxial cable is manufactured to DX Engineering specifications, with a nominal velocity factor of 0.82. That means they're the right physical length to allow for easy burial and routing from the center-mounted array phasing unit to the base of each vertical element. Maximum performance is achieve with properly installed phased arrays, including ground-mounted base-fed full-size quarter-wave elements with free-space array dimensions and complete, interconnected ground radial wire systems. The electrical dimensions of phased array transmission cables are critical to system performance. Each of our cable assemblies is hand crafted and electronically tuned at DX Engineering. Eliminate the trouble and concern of trying to tune your own cables and order a set of DX Engineering Pretuned Quarter-Wave Phased Array Cables. NOTE: Custom tuned phased cables for all other frequencies in each Amateur band are also available. See DX Engineering Phased Array Quarter Wave Tuned Cables.
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$79.99
DX Engineering EZ-BUILD® UWA8X Center-T and End Insulator Kits
DX Engineering EZ-BUILD® UWA8X Center-T and End Insulator Kits are designed for building coax fed wire antennas that will be used in medium to low-power operations. These new universal wire antenna building kits include a completely unique coaxial cable connector and feedline strain relief system. All EZ-BUILD® kits also include our lightweight, high strength, UV-protected center-T and end insulators. They feature an exclusive serpentine wire grip for insulated DX Engineering antenna wire and our high strength, high power 300 ohm ladder line. Threading the wire or window line through the center and end insulator openings in a serpentine manner creates a grip that is so strong, the wire ends do not need to be looped, wrapped, or soldered. EZ-BUILD® kits allow for fast and easy field adjustments! The DX Engineering EZ-BUILD® Center-T includes a centered, top, 3/8 in. hole for the attachment of an antenna support rope, and the End Insulators accept up to 5/16 in. antenna support rope. Our EZ-BUILD® kits simplify the construction of your wire antenna, with wire crimp terminals, stainless steel hardware, and a pre-assembled coax pigtail with connector and adapter that accepts your feedline PL-259 (UHF male) connector. The feedline is secured with the exclusive DX Engineering Coax Strain Relief which features an aluminum bracket, neoprene-cushioned P-clamps, and stainless steel hardware. This method supports the feedline without subjecting the connectors to the strain of the coaxial cable's weight or movement. DX Engineering EZ-BUILD® UWA8X Center-T and End Insulator Kits let you create any type of wire antennas, including single-band, multi-band, multi-frequency, folded dipole, doublet and inverted-V, off-center fed, Windom, Zepp, long wires, rhombic, V-beam, or loop antennas. This UWA8X-KIT will handle low and medium power levels and tolerate low SWR levels. The UWA213-KIT is the model to use for the construction of a coax fed wire antenna that will be operated at moderate power and high duty cycle modes of operation, such as AM, RTTY, or FM. Use the EZ-BUILD® UWA-KIT for building a wire antenna with any DX Engineering Balun or 300 Ohm Ladder Line. DX Engineering EZ-BUILD® UWA8X Center-T and End Insulator Kits include: -- One center-T insulator featuring an exclusive no-loop, no-solder wire, multiple wire, or 300 ohm ladder line serpentine grip design, which allow for the rapid field adjustment of wire lengths; the center-T includes a centered top hole for attaching support ropes -- Two end insulators featuring the no-loop, no-solder, serpentine grip design -- Two stainless steel wire connection bolts, nuts, and washers -- Four crimp ring terminals for antenna and ladder line wire connections -- One pre-soldered, weather-sealed and tested coaxial connector and adapter assembly -- One aluminum cable strain relief bracket and mounting hardware -- Two strain relief P-clamps with neoprene cushions sized to grip RG-8X without crushing the coaxial cable -- Additional stainless steel hardware for mounting DX Engineering baluns Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering baluns, antenna wire, 300 ohm ladder line, and support rope are sold separately.
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$83.99
DX Engineering EZ-BUILD® UWA213 Center-T and End Insulator Kits
DX Engineering EZ-BUILD® UWA213 Center-T and End Insulator Kits are designed for building coax fed wire antennas that will be used in high power operations. These new universal wire antenna kits include a completely unique coaxial cable connector and feedline strain relief system. All EZ-BUILD® kits also include our lightweight, high strength, UV-protected center-T and end insulators. They feature an exclusive serpentine wire grip for insulated DX Engineering antenna wire and our high strength, high power 300 ohm ladder (window) line. Threading the wire or window line through the center and end insulator openings in a serpentine manner creates a grip that is so strong, the wire ends do not need to be looped, wrapped, or soldered. EZ-BUILD® kits allow for fast and easy field adjustments of antenna wire length without soldering! The DX Engineering EZ-BUILD® Center-T includes a centered top 3/8 in. hole for the attachment of an antenna support rope, and the End Insulators accept up to 5/16 in. antenna support rope. Our EZ-BUILD® kits simplify the construction of your wire antenna, with wire crimp terminals, stainless steel hardware, and a pre-assembled coax pigtail with connector and adapter that accepts your feedline PL-259 (UHF male) connector. The feedline is secured with the exclusive DX Engineering Coax Strain Relief which features an aluminum bracket, neoprene-cushioned P-clamps, and stainless steel hardware. This method supports the feedline without subjecting the connectors to the strain of the coaxial cable's weight or movement. DX Engineering EZ-BUILD® UWA213 Center-T and End Insulator Kits let you create any type of wire antennas, including single-band, multi-band, multi-frequency, folded dipole, doublet and inverted-V, off-center fed, Windom, Zepp, long wires, rhombic, V Beam, or loop antennas. This UWA213-KIT is the model to use for the construction of an RG-213 or RG-8U coax fed wire antenna that will be operated at high power and high duty cycle modes of operation, such as AM, RTTY, or FM. The UWA8X-KIT will handle low and medium power levels and tolerate low SWR levels. Use the EZ-BUILD® UWA-KIT for building a wire antenna with any DX Engineering Balun or 300 Ohm Ladder Line. DX Engineering EZ-BUILD™ UWA213 Center-T and End Insulator Kits include: -- One center-T insulator featuring an exclusive no-loop, no-solder wire, multiple wire, or 300 ohm ladder line serpentine grip design, which allow for the rapid field adjustment of wire lengths; the center-T includes a centered top hole for attaching support ropes -- Two end insulators featuring the no-loop, no-solder, serpentine grip design -- Two stainless steel wire connection bolts, nuts, and washers. -- Four crimp ring terminals for antenna and ladder line wire connections -- One pre-soldered, weather-sealed and tested coaxial connector and adapter assembly -- One aluminum cable strain relief bracket and mounting hardware -- Two strain relief P-clamps with neoprene cushions sized to grip RG-213 or RG-8U without crushing the coaxial cable -- Additional stainless steel hardware for mounting DX Engineering baluns Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering baluns, antenna wire, 300 ohm ladder line, and support rope are all sold separately.
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$85.99
DX Engineering HF Portable TW Antennas and Accessories
Preserving and building upon the legacy of this premier portable HF antenna line, DX Engineering is now the manufacturer and seller of TW Antennas! DX Engineering's acquisition of the products and designs of these unique HF portable and stealthy antennas brings easy access and simplified ordering to this line formerly known as Transworld. DX Engineering HF Portable TW Antennas and Accessories feature complete portable antenna packages and all of the individual components to build a custom stealthy system. Will you use these compact HF antennas as portables, fixed antennas, or both? Choose your own path to stealthy operations and to join in the fun of portable HF! Naturally stealthy, these compact HF vertical-dipole TW antennas feature a black finish that is excellent on fixed antennas in HOAs or where "CC & R" antenna restrictions preclude the installation of towers and easily visible HF antennas. Simply unfold the DXE-TW-BAS-BLK Top and Bottom Sections, add your Band Box Center Post section, and place the antenna on the optional 41 in. long permanent mounting post, DXE-TW-PMP, and operate! Note: Although a permanently-installed mounting pier (DXE-TW-PMP) is available, DX Engineering TW Antenna band boxes are not waterproof. Do not leave your TW Antenna exposed to the elements. For portable use, the lightweight foldable Quadrastand, DXE-TW-AQ, lets you set up your DX Engineering HF Portable TW Antenna wherever you happen to be. Quadrastand's gray fiberglass legs will give decades of rugged, dependable service. And since they're fiberglass, there's no chance of corrosion from contact with earth or sand. Think about equipping for your special operating event plans like Scouts Jamboree On-The-Air (JOTA), Field Day or even SOTA (Summits On-The-Air) for backpacking and general camping with HF! A great Carry Case, DXE-TW-DXBAG, is available to make traveling with these antennas in your car or RV a snap. DX Engineering HF Portable TW Antennas and Accessories are available as mono-band or multi-band systems. Covering all five bands from 20 through 10 meters, DXE-TW-2010 Multi-Band Remote Switching Center Sections include a control console and cable and can be band-switched remotely in the shack and automatically by some transceivers. DXE-TW-2010L Multi-Band antennas can be band-switched manually. Plus, it's easy to change to the 80, 40 and 30 meter operations with DXE-TW-8080, DXE-TW-4040 or the DXE-TW-3030. Swap out each Band Box Center Post to change to operations on these different bands in a very simple manner. Typical installation for TW Antennas is a compact 8.25 ft. tall and only 5 ft. wide. Make your choice; portable, fixed or both, then equip yourself with the best compact vertical-dipole antennas available. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering HF Portable TW Antennas and Accessories are here to help you enjoy working stealthy HF at home or… anywhere! NOTE: Some older versions of the TW Antennas are not compatible with current production parts. The original manufacturer of TW Antennas had changed the design more than once and newer parts will not fit some older models. Call DX Engineering to verify if your old TW Antenna will be compatible with currently produced parts and assemblies.
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$91.99
DX Engineering Transceiver to Amplifier Interface Cables
DX Engineering Transceiver to Amplifier Interface Cables support automatic band changing using band data, TTL or serial data, and are used to connect specific amplifier models to many modern transceivers. These cables have specially wired connectors to provide transceiver frequency information or general band data to the amplifier for automatic band changing. Most do not have a PTT amplifier keying line. Cables must be selected by amplifier model and transceiver brand and model: DXE-OMAUTO-RS232 connects OM Power Automatic Tuning Amplifiers to transceivers with RS-232C CAT or COM ports, including Yaesu, TenTec, Elecraft and Kenwood (FlexRadio requires additional serial USB adapter). DXE-2000 series cables are only for the Acom 2000A models DXE-ACOMSS series cables are only for Acom Solid State 2020S, 1200S, 700S, 500S and legacy 600S (replacing original DXE-600 series cables). DXE-ACOMSS-101, DXE-ACOMSS-YSU10 and DXE-ACOMSS-YSU8 cables carry PTT keying as well as Band Data, but they do not support Acom 04AT, 06AT or 20AT Tuner automatic operations, which require DXE-ACOMSS-YSU. Most interface cables carry only CI-V, CAT or COM frequency data, but not transceiver PTT to amplifier keying signal (ground on transmit). Automatic band-changing amplifiers that are interfaced with frequency data cables require a separate keying line. These have either a special connector to a male RCA, or are a standard male RCA phono patch cable, to handle PTT keying from the transceiver.
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