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62 Results Found For "in-line"
DX Engineering Rotator Control Line Connectors
Available here, individually, are the "remarkable and elegant" 4-pin interlocking weather-sealed rotator control line connectors that have metal bodies to provide RF shielding, as supplied with the DXE-RT4500HD. These DX Engineering Rotator Control Line Connectors are top-of-the-line cable-mount solder connectors that are intended to be used outdoors, for a lifetime of reliable control line termination. Their positive latching, moisture-sealing, quick disconnect features make them ideal to build an extension, pigtail or test cable for your DXE-RT4500HD or controller. They are a perfect match for DX Engineering DXE-CW1812OR Heavy-Duty Spec Rotator Cable, with 5 conductors: 2 x 12 AWG and 2 x 18 AWG plus 1 x 18 AWG shield. Each gender are used to build your own rotator cable assembly extension. Just as with standard power extension cords, use female for the power source end and male for the mating end of the extension, so there is never an exposed pin with voltage present. In this case, use the DXE-LP-20-F female connector on any cable, controller pigtail or the rotator end of an extension that can have a voltage present. Use the DXE-LP-20-M male connector on the controller end of the mating extension cable. DXE-LP-20-F 4-pin female to make a controller pigtail or for the end of a cable assembly that mates with the male rotator pigtail. This connector is supplied with DXE-RT4500HD Heavy Duty Rotators DXE-LP-20-M 4-pin male as supplied on the permanently mounted DXE-RT4500HD Heavy Duty Rotator. Used for the controller end of an extension cable to mate with a controller pigtail. These are the best connectors, to make the best weather-sealed 4-conductor cable assembly, for the best rotator on the market, all from DX Engineering.
Not Yet Reviewed
$20.99
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 RTR-2 Modular Receive-Transmit Interfaces
DX Engineering RTR-2 Modular Receive-Transmit Interfaces provide the easiest and safest method for connecting a dedicated receive antenna to an HF transceiver that does not have a separate receive antenna input. Placed inline with the transceiver's antenna connector, the RTR-2 does the job of a 200 watt T/R relay using the amplifier keying line for failsafe protection, so your transmitted energy cannot go to the receive antenna. Three internal Plug-in Module option slots provide added features and protection: * DXE-RPA-2-PM Receive Preamplifier Plug-in Module * DXE-TRI-PM Transmit Receive Interrupter Plug-In Module * DXE-IT-PM 75 to 50 ohm Impedance Transformer Plug-in Module DX Engineering RTR-2 Modular Receive-Transmit Interfaces allow the standard transceiver owner to enjoy the advantages of separate receive antennas. For the unswitched receive antenna (RX ANT) port on expensive transceivers, the RTR-2 interface also adds inexpensive failsafe protection. The receive antenna line can be opened or grounded with the optional DXE-TRI-PM Interrupter plug-in module. The RTR-2 is a very useful device for many applications, including: * Connection of external receiving antennas to transceivers lacking external antenna ports * T-R antenna switch for older equipment using separate transmitters and receivers * Interfacing antennas to older phasing or noise cancelling systems * Addition of a switchable receive preamplifier to any transceiver or transmitter and receiver combination * Excellent failsafe receiver protection for close-spaced transmit and receive antennas, without performance degradation of diode circuits of other devices. RTR-2 units feature a unique, failsafe connection method that prevents the hot switching and timing errors that are common on other transmit/receive relays. RTR-2 interfaces switch fast enough for partial break-in CW operation. There are many simple applications for the new RTR-2 and now internal modules can add dramatically improved reception of those really weak signals on the crowded HF bands! DX Engineering RTR-2 Modular Receive-Transmit Interfaces enable operators to enjoy improved reception with any low noise receiving antenna system. This shielded enclosure relay system provides a safe method of connecting a receive antenna, such as a Beverage, Active Receive system, or other receiving accessories to your radio. Major features that make the DX Engineering RTR-2 Receive Antenna Interfaces your best choice for a receive T/R system device: * New Status Indicating Color-changing LEDs * Three internal slots for new DX Engineering modules * New Key Line Out connector for Amplifier * New internal jumper for placing DC on the Receive Antenna feedline for Active or Loop receive antennas * Attractive and heavy stainless steel enclosure * 200 watts RF switching capability * Supports CW partial break-in * Main transmit antenna connector is SO-239 (UHF female) * Radio RF connector is SO-239 (UHF female) * Receive antenna input is 75 ohm F connector * Receive outputs are standard 75 ohm Type F connectors * Inputs are 50 ohm BNC or 75 ohm F (Optional transformer module available) * Safe switching--transmit antenna is always connected to transceiver on power-off * Hot switching lockout--disables receive antenna during transmit mode (Optional DXE-TRI-PM can be set to short the RX ANT line) * Versatile--allows inclusion of Optional RF preamplifiers and other plug-in modules * Simple 13.8 Vdc input for all operations An indispensable accessory for the DX enthusiast and useful for any Amateur's shack, DX Engineering RTR-2 Modular Receive-Transmit Interfaces can help you expand and improve your station's antenna connections and the protection of your equipment.
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$375.99
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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$22.99
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$59.99
DX Engineering Clifton Laboratories Z10046 High-Gain Preamplifiers
DX Engineering Clifton Laboratories High-Gain Preamplifiers are adapted, assembled versions of the circuit project kits developed by Jack Smith, K8ZOA (SK). This is our version, the DXE-Z10046B-PM High-Output Preamplifier with 23dB gain, which is virtually identical to its predecessor in specs and performance. This versatile module preamp can plug directly into the DXE-NCC-2 and DXE-RTR-2 units. Also, you can easily create a separate high-performance in-line receive-only preamplifier with the DXE-Z10046B-PM module installed in our DXE-DMC-2 Dual Module Chassis. The legacy built by Jack Smith, K8ZOA (SK) with Clifton Laboratories lives on with select products by DX Engineering.
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$109.99
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 Portable VHF/UHF Antenna Mounts
Designed for rapid deployment in portable operations, the DXE-MOBILEPORT-U is the ideal solution for mounting VHF/UHF or GMRS vertical antennas in the field. Whether you're camping, participating in Field Day, supporting EmComm activities, or setting up a temporary station, this mounting plate simplifies antenna setup in challenging environments. The center hole is sized to fit over collapsible masts like the DXE Nomad fiberglass mast, providing a stable and secure base. Four outer holes serve dual purposes: they can anchor guy lines for mast stabilization and support soldered wires to create a ground plane—if your antenna requires one. However, for best performance and simplicity, a no-ground-plane-required antenna is recommended. Compact, lightweight, and versatile, the DX Engineering MOBILEPORT-U Portable VHF/UHF Antenna Mounts are a must-have for any portable antenna deployment kit. Important Note: This mounting plate is intended for use with fiberglass masts only. Carbon fiber masts are not recommended, as they may interfere with RF signals and cause SWR issues due to their conductive properties.
Not Yet Reviewed
$29.99
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 Boom Support Truss Riser Kits
DX Engineering Boom Support Truss Riser Kits include these parts to put this heavy-duty truss riser onto the 3 in. boom of a long beam or Yagi antenna. Qty 1 - Large Plate, 10 x 8 x 0.25 in. Aluminum, for Boom to Riser clamping Qty 1 - Small Plate, 8 x 3.5 x 0.25 Aluminum, for top of riser truss line connections Qty 1 - Riser Tube, Aluminum 2.00 x 0.120 x 48 in., with vinyl cap Qty 2 - 3 in. Saddle Clamps Qty 4 - 2 in. Saddle Clamps Qty 2 - Boom Eye Hooks Qty 2 - Truss connection Quick Links Boom support truss line (typically Phillystran), thimbles and clamps are sold separately. See suggested parts. This kit will also work on a 2 in. boom with two (2) additional DXE-SAD-200B Saddle Clamps.
Not Yet Reviewed
$259.99
DX Engineering CC-8A Deluxe Control Consoles
DX Engineering CC-8A Deluxe Control Consoles are flexible, 8-position controllers used to control the DX Engineering RR8 series Antenna Switches, 8 Circle Arrays, or any product that uses a 13.8V DC, 1-of-8 or BCD control format. They feature an attractive metal housing that is powder-coated and features an ON/OFF switch, ergonomic selector knob, and eight front-panel LEDs, with adjustable brightness, to indicate the switch position. Their rear-panel external plug allows the control cable to be easily unplugged during weather events or if the shack needs to be rearranged. We also suggest unplugging the control console leads when severe weather is expected. The use of a lightning protector on the control lines (DXE-IS-RCT) is prudent as well. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering CC-8A Deluxe Control Consoles are RoHS-compliant and the components, including the solder used, are all lead-free. Only use lead-free solder and lead-free soldering tools if internal servicing is required.
( 3 )
$309.99
DX Engineering Maxi-Core® 20 Baluns and Feedline Chokes
The present-day DX Engineering was launched in the year 2000. To celebrate our 20th Anniversary in the year 2020 we have developed a new line of Baluns and Feedline Chokes. Introducing DX Engineering "Maxi-Core® 20" Baluns and Feedline Chokes. They reduce or eliminate currents on the outside of your feedline allowing you to hear and to be heard much better. They keep more RFI/BCI out of your antenna and receiver and transfer more of your transmitted signal to the antenna for higher efficiency, the best antenna pattern and maximum performance. Signaling a new era of RF performance across the 1.8 to 54 MHz frequency range, DX Engineering Maxi-Core® 20 Baluns and Feedline Chokes handle full-legal-power-plus and provide higher common mode impedance (CMI) across a greater frequency range than competing models and even previous DX Engineering and Comtek models. Years of R&D coupled with major advancements in test equipment and techniques combined with custom ferrite materials have allowed our engineering team to design the DX Engineering Maxi-Core® 20 Baluns and Feedline Chokes. Maxi-Core® 20 Baluns and Chokes have high CMI across the AM Broadcast band and the HF/6M spectrum, which is essential to provide sufficient suppression of unwanted transmitted and received RFI/BCI current on the feedline shield exterior. Hear and be heard with DXE Maxi-Core® 20 Baluns and Feedline Chokes. Choose superior performance from these models: * DXE-MC20-1-1 Maxi-Core® 20 - 1:1 Current Choke Balun - For all HF-6m balanced antennas with a 50 ohm feedpoint, including resonant dipoles, loops, Yagis, beams, etc. * DXE-MC20-FC Maxi-Core® 20 - 1:1 Feedline Choke – This high CMI line isolator is perfect for use in line on 50 ohm coaxial feedlines, at the antenna, tower or shack end of the feedline. * DXE-MC20-1-1T Maxi-Core® 20 - 1:1 Current Choke Balun – This 1:1 "T" model is for force feeding antennas with a tuner. Use it at the end of ladder line of any impedance or mounted on a coax fed non-resonant antenna. This model tolerates operation at high SWR on non-resonant multi-band antennas. * DXE-MC20-C4-1 Maxi-Core® 20 - 4:1 Current Choke Balun is for use on antennas with a 200 ohm feedpoint and at the end of any impedance ladder line, especially on antenna systems with higher impedance. This model tolerates operation at high SWR on non-resonant multi-band antennas. * DXE-MC20-V4-1 Maxi-Core® 20 - 4:1 Voltage Balun is a 200 ohm to 50 ohm transformer for use on random long-wire and OCF antenna applications. This true voltage balun is intentionally designed with low CMI for antennas that need a transformer without RF choking for easier antenna tuner operation and it tolerates elevated SWR. Maxi-Core® 20 Baluns and Feedline Chokes are built into a convenient weather resistant NEMA enclosure that is mounted easily with optional brackets. They feature 1/4-20 stainless steel hardware and a high quality silver-plated PTFE dielectric SO-239 (UHF female) input connector. The SO-239 connector limits power handling to 5 kW at low SWR and reduced power at elevated SWR. These baluns and the feedline choke exhibit very low insertion loss and inherently low SWR. Optional mounting brackets are available for use on wire antennas or for verticals, Yagi and beam antennas. See the Suggested Parts tab after clicking "More Detail" on the model of interest. Combination packages that include balun or choke and mounting bracket are also available.
( 141 )
$141.99
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$169.99
DX Engineering NCC-2 Receive Antenna Phasing Systems
Imagine adjusting the controls to knock out strong interfering stations or noise—and then being able to copy and log that weak DX station. By successfully combining the right antennas with the advanced phasing capabilities of the NCC-2, this is the operating thrill that every radio enthusiast can enjoy, again and again! DX Engineering NCC-2 Receive Antenna Phasing Systems are variable phasing controllers that combine the 300 kHz- 30MHz received signals from one transmit antenna and one receive antenna, or from two dedicated receive antennas. Combining signals from two stationary antennas physically spaced 1/10 to 1/2 wavelength apart creates an array pattern with signal peaks and dips called nulls. Adjusting the NCC-2 Phase and Balance controls have the effect of electronically rotating or steering that pattern. Steering the null direction to significantly weaken a local or distant interfering signal or noise is known as "Noise Cancelling." This "Noise Cancelling Controller" (NCC-2) can dramatically enhance the reception of weak signals from non-null directions. This "reverse-beam" capability on radio frequencies AM Broadcast through HF can provide amazing benefits for many types of AM DX and SWL receiving and ham radio operating. Work new DX, hear the weak station in casual regional conversations, snag the rare multiplier in contests and hear beyond the noise and interference in dire circumstances. DX Engineering NCC-2 Phasing Systems now feature the built-in RTR Receive-Transmit Interface relay system that expands the exciting benefits of antenna phasing for interference reduction in two ways: * First, the NCC-2 can combine signals from the HF transmit antenna and a separate receive antenna to effectively notch-out strong stations or noise. Almost any Amateur can now enjoy the benefits of antenna phasing and noise-nulling, even those with space limitations for separating the receiving and transmitting antennas. * Second, the user of any standard HF transceiver that lacks a separate receive antenna input can have enhanced reception of noise and signal nulling with the DXE-NCC-2 and two antennas. Rear panel SO-239, F and BNC connectors make the NCC-2 extremely versatile and easy to connect to almost any receiver or HF transceiver up to 200 watts. Redesigned with plug-in modular circuit board sockets, the NCC-2 includes one switched and powered internal slot and two passive internal slots per channel to accommodate these new options: * DXE-RPA-2-PM Receive Preamplifier Plug-In Modules (powered): one per channel for low-signal passive antennas with poor ground conditions * DXE-RG5000HD-PM Receiver Guard 5000HD Plug-In Module (passive): Front-end protection for the NCC-2 and the receiver * DXE-IT-PM 75 to 50 ohm Impedance Transformer Plug-In Module (passive): to match 75 ohm RX ANT feedlines to NCC-2 50 ohm internal impedance * NCC-2 Receive Filter Sets (passive, non-switchable): High Pass, Band Pass and Low Pass Filters for 160, 80, 40 meters typically in stock, with other band filters available individually by special order. DX Engineering NCC-2 Receive Antenna Phasing Systems offer these new additional benefits: * Multi-Color Status Indicating LEDs for Power, RTR Mode and Preamp Power CH A and CH B * New Radio Key Line Input with RX Enable Output-RTR Failsafe to prevent RF damage to NCC-2 and RX equipment * New ACC Key Line Output RCA female 'ground on transmit' pass-through for Amplifier or Accessory * New screw-on 2.1mm DC connector to prevent accidental power cable pull-out * Operates on +13.8VDC @ 2A input to power the NCC-2 and internally jumper set Bias Tee on each RX ANT ports for coax fed Active Verticals and other accessories. Offering new and experienced radio enthusiasts the next level of reception enhancements, DX Engineering model NCC-2 Receive Antenna Phasing Systems in use around the world!
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$955.99
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 RR8B-HP Remote Antenna Switches
DX Engineering RR8B-HP Remote Antenna Switches are RF switches designed to have excellent performance on HF through 6 meters. Using 16 custom, sealed, moisture-resistant relays, these Remote Switches provide the best port-to-port isolation available with reliable, long-term performance. RR8B-HP switches may be used as conventional one-of-eight antenna switches or configured to simultaneously select multiple output ports, thereby allowing their use in complex antenna phasing and stacking systems. DX Engineering RR8B-HP switches use a removable screw-terminal control cable plug that greatly simplifies installation by eliminating the need for disassembly or soldering to wire the control lines. These remote relay boxes are custom-made on a revised stainless steel chassis with integral mounting-bracket flange and include a special RF-shielded high-impact thermoplastic cover. There is also a custom conductive gasket to complete the seal between the cover and stainless steel housing base. A DX Engineering V-Bolt Saddle Clamp is included to mount the RR8B-HP on any tower leg or pipe sized from 1 to 2 in. O.D. Features of the RR8B-HP Remote Antenna Switches include: * Fully RF shielded with stainless steel mounting bracket and hardware * Best port-to-port isolation available: Over 70 dB isolation below 30 MHz, Over 55 dB isolation below 60 MHz * Loss: Less than 0.1 dB below 60 MHz * High-RF tolerant, Amphenol UHF female, SO-239 connectors * Shorted or open selection of unused antenna ports * Sealed 20 ampere, RF-rated relays * Safe 12V DC relay operation * Lightning protection on control lines * External quick-connect plug for control lines * Reliable operation in extreme-weather conditions Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. For reliable operation of multiple antennas through the operation of remote switching, order DX Engineering RR8B-HP Remote Antenna Switches to do the job!
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$549.99
DX Engineering AVA-3 Active Matching Units
DX Engineering AVA-3 Active Matching Units are state-of-the-art broadband receive RF operational amplifiers that achieve unparalleled weak signal reception across the radio frequency range from 40 kHz* to 30 MHz. They work as a high impedance buffer between a short antenna element of 6 to 24 feet and an economical 75 ohm feedline. The AVA-3 and a short element are intended to be mounted on a ground rod at ground level in a clear area away from all metal, towers and other antennas. The gain adjustable AVA-3 is the sole upgrade and drop-in replacement for all discontinued receive array element amplifiers including Hi-Z Antennas AMP, PLUS6-AMP, AMP-V2 and AMP-PLUS-V2 as well as DXE-AVA-2 and AVA-1. The DXE-AVA-3 Active Matching Unit is the heart of the new line of DX Engineering Receive Short Element Active Vertical Antennas, DXE-RSEAV-1. Compared to large antennas, this amplified short element method dramatically improves signal-to-noise performance for excellent VLF, LF and HF weak signal reception. Click or tap the title of the listed item for an overview - a complete description, Specifications, Required and Suggested Parts. Links to instruction manuals and charts appear in Documentation. The AVA-3 Active Matching Unit provides these features and benefits: • Ultimate frequency coverage of 40 kHz* to 30 MHz for VLF through HF (including the 2200m and 630m Amateur bands) • High Third Order Intercept (TOI) Performance +39dBm for superior strong signal handling equal to top transceivers • Consistent unit to unit gain for greatly improved array performance • Virtually Flat Gain (+/-0.4 dBm) across the entire frequency range • Internally settable gain (default -6, 0, or +6 dBm) for different ambient noise locations and element sizes • Direct DC via second F connector – internal settable choice for separate DC and RF coaxial cables for best performance, or standard Bias Tee DC on the RF coax • Each DXE-AVA-3 Active Matching Unit operates on 12 -15 VDC at 25mA • Element is grounded when power is removed • 75 ohm F connectors support field serviceable RG-6 Quad Shield suitable up to 1,000 feet for VLF through HF *Frequency coverage below 200 kHz requires Direct DC on a separate DC only coaxial cable. Please Note: To achieve the expected reception pattern, multi-element phased arrays depend upon identical gain and phase response from each element. Every individual element amplifier, its grounding, and even its feedline characteristics and length, must be identical to the others in the array. Therefore, when unrepairable failures occur, it is essential to replace and upgrade all the element amplifiers in the array with fully compatible DXE-AVA-3 units.
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$139.99
DX Engineering RR8B-SD Remote Antenna Switches
DX Engineering RR8B-SD Remote Antenna Switches are the highest power handling antenna switches in the DX Engineering RR8 Series. Think of them as Super Duty. They are designed to switch up to 8 coaxial lines in high-power RF systems. RR8B-SD switches use enclosed RF-rated relays with exceptional RF voltage and current capability to provide reliable, long-term performance. DX Engineering RR8B-SD switches may be used as conventional one-of-eight antenna switches or configured to simultaneously select multiple output ports, allowing for use in complex antenna phasing and stacking systems. RR8B-SD switches use removable screw-terminal control cable plugs that greatly simplify installation by eliminating the need for disassembly or soldering to wire the control lines. These remote relay boxes are custom-made on a revised stainless steel chassis with integral mounting bracket flange, and include a special RF-shielded high-impact thermoplastic cover. There is also a custom conductive gasket to complete the seal between the cover and stainless steel housing base. A DX Engineering V-Bolt Saddle Clamp is included to mount the RR8B-HP on any tower leg or pipe sized from 1 to 2 in. outside diameter. RR8B-SD Remote Antenna Switches feature: * Fully shielded, high impact thermoplastic enclosure, stainless steel mounting bracket, and hardware * Excellent port isolation; greater than 60 dB at 30 MHz, worst case * Power Rating: Greater than 10 kW in normal amateur operation on all modes when using antennas with less than 2:1 SWR on 30 MHz and below. Greater than 5 kW above 30 MHz * High-RF tolerant, Amphenol UHF female, SO-239 connectors * Lightning protection on control lines * Shorted or open selection of unused antenna ports * Custom sealed 30 ampere high-voltage RF relays * Solderless removable plug for easy installation of control line with no disassembly * Safe 12V DC relay operation * Reliable operation in all weather extremes Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. For multi-band multi-antenna QRO operation, there is no better remote switch than DX Engineering RR8B-SD Remote Antenna Switches!
( 4 )
$599.99
DX Engineering Direct Coax Feed Add-On Kits
DX Engineering Direct Coax Feed Add-On Kits are designed for the Hustler BTV Series of antennas. They allow for a direct connection with a coaxial cable PL-259 (UHF male) connector. Manufactured from heavy-duty stainless steel, these add-on kits allow for a convenient connection from your coaxial cable feed line directly to the base of the Hustler BTV series vertical antennas by adding a mounted SO-239 (UHF female). They may be positioned in any one of three different directions to accommodate a straight-in or sideways connection from your feed line. If you are looking for a professional and reliable installation, then order a low power or high power (low loss) coaxial jumper cable for connecting your radial plate with a bulkhead connector. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering Direct Coax Feed Add-On Kits include a laser-cut stainless steel bracket, high quality SO-239 with PTFE insulation, and stainless steel hardware. Order one for your BTV vertical!
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$42.99
DX Engineering RPA-2 Modular Receive Preamplifiers
DX Engineering RPA-2 Modular Receive Preamplifiers are newly designed versions of the RPA-1 with internal slots for accessory modules. They accommodate the addition of the one optional plug-in module, such as the 75 to 50 ohm Impedance Transformer Module, or the Receiver Guard 5000HD Plug-In Module, or the DX Engineering Clifton Laboratories Z10020 AM Band Filter Module. DXE-RPA-2 preamps have very low internal noise and are optimized for the 300 kHz to 35 MHz range. They help you hear the weakest signals without artificially raising the noise. Meticulous craftsmanship and durable, robust components allow these preamplifiers to withstand high signal levels while providing superior dynamic range and third-order intercept performance that equals or exceeds most receiver and transceiver front-ends. RPA-2 Receive Preamplifiers have key features added, as requested by our tech-oriented customers and enthusiasts: - Internal slot accommodates the optional 75 to 50 ohm Impedance Transformer Module to accomplish typical receive antenna feedline to equipment transitions without losses -Also allows direct connection to 50 ohm receive antenna feedline BNC connectors with no transformer required - Internal slot for DXE-RG5000HD-PM Receiver Guard 5000HD Plug-In Module – Front-end protection for the RPA-2 - Secure BNC female connectors and receive-system friendly F female connectors remain; both prevent accidental connection to transmitting devices with UHF connectors - A green LED indicates when DC power is present and the preamplifier circuit is engaged. - An ingenious positive-capture threaded-sleeve 2.1 mm power connector that ensures the DC power cannot be accidentally disconnected from the RPA-2. - Alternatively, a simple internal jumper change allows the RPA-2 to be powered by DC on the feedline While many other common preamplifiers suffer from harmonic distortion, RPA-2 Modular Receive Preamplifiers include our exclusive, advanced push-pull design that eliminates harmonic distortion. Their high quiescent current increases their ability to handle strong signals without distortion or overload. These high performance devices must be powered with a well filtered and regulated DC power supply and will offer maximum performance at 12 to 18 Vdc input. Please do not use a cheap wall transformer or noisy switching wall-wart to power these top-of-the-line preamplifiers. Indoor installation at the back of the radio is recommended for RPA-2. For those who want to place them in an enclosure at a receive antenna system, a handy internal jumper allows these new units to be powered on the coaxial cable. RPA-2 Receive Preamplifier Specifications: -Input and Output Connectors, female: BNC and F -Frequency Range: 300 kHz to 35 MHz -Gain: 16 dB, +/- 1.5 dB (over entire frequency range) -Output Third Order Intercept: 43 dBm -Noise Figure: 3.5 dB -One dB Compression Point: +26 dBm (400 mW output) -Dynamic Range, IM3: 110 dB or greater (500 Hz bandwidth) -Power Requirement: 12-18 Vdc, 140 mA max. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering RPA-2 Modular Receive Preamplifiers offer superior receiving results on crowded medium wave and shortwave bands as well as on the ham bands. SWLs and Radio Amateurs around the world have come to rely on the advanced operational performance of DX Engineering Receive Preamplifiers. You will be able to pull in the weakest signals and snag that rare one, under the most difficult conditions, when you need it the most. Order your DX Engineering RPA-2 today!
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$269.99
DX Engineering TWIG Broadcast Interference Filter
Improve the performance of your QRP POTA or SOTA station with the DX Engineering DXE TWIG BCFIL Broadcast Interference (BCI) Filter. Engineered specifically for low power amateur radio applications, this compact module effectively attenuates strong AM broadcast band signals below the 80 meter amateur band. By suppressing these out of band signals, the filter helps lower your receiver's noise floor, resulting in cleaner, more reliable reception of weak amateur radio signals. The DXE TWIG BCFIL is equipped with BNC female connectors for quick, in line installation in the field. Ideal for portable, field, and low power fixed station use, it provides an effortless way to reduce unwanted broadcast interference without adding complexity to your station setup. Features: • Blocks strong AM broadcast band and 1.8 MHz signals below the 80 meter amateur band • Improves receiver noise floor and enhances reception of desired signals • Designed for low power transceivers • Compact in line module with BNC female connectors for easy installation • Ideal for portable POTA and SOTA, mobile, and fixed low power stations Power Rating: For QRP use only — maximum 20 watts PEP. Not suitable for high power transceivers.
Not Yet Reviewed
$49.99
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 RF PRO Loop Replacement Components
Since DX Engineering manufactures the RF-PRO-1B® Active Magnetic Loop Receive Antenna, we can offer these RF PRO Loop Replacement Components. Available for refurbishing Pixel, InLogis or DX Engineering Active Magnetic Loops, choose one or more of these individual "Original Equipment" components, component set or handy accessory pack that fills your needs. 1. DXE-RFPRO1B-PA Receive Preamplifier has this new part number for the preamp unit only. This is the weatherproof, metal-encased replacement RF PRO 1B Receive Preamplifier that mounts directly onto the loop bracket. Mounting hardware is not included with this replacement low-noise preamp, but it is available in the… 2. DXE-RFPRO1B-OAP Outdoor Accessory Pack. This package contains the insulated shoulder washers, flat washers and nuts to properly mount the preamp. Also included in this outdoor package for the loop installation are the mast mounting V-Bolts and Saddles and the short RG-6 F connector jumper to connect the loop to the preamp, and weather sealer. User supplied RG-6 coaxial cable is used for the long feedline that is run inside to the… 3. DXE-RFPRO1B-PI Power Inserter. This is the indoor unit that puts a well filtered and regulated 20 Vdc power onto the feedline for the preamp. It carries the loop RF to the receiver via the F connector. This unit also disables the power to the preamp when it is keyed by the transceiver amplifier keying line. The Power Inserter is run on 24 Vac from the… 4. DXE-PSW-24A-6AU AC Adapter. This clean power supply is a linear transformer that converts 120 Vac to the 24 Vac at 600 mA required by the Power Inserter. It is has the attached 2.1mm power connector. 5. DXE-RFPRO1B-IAP Indoor Accessory Pack contains the cables and adapter to connect the transceiver RF and keying lines to the Power Inserter. The F connector coaxial cable connects RF from the Inserter to the radio. A supplied F female to PL-259 adapter facilitates that connection, should you radio need it. An RCA phono patch cable is supplied for keying the Power Inserter and a RCA phono y-adapter provides the additional keying line connection for a power amplifier. 6. DXE-RF-30B Complete Component Package is for a system replacement where only an existing RF PRO 1B Loop is available. All of the above individual components, cables and hardware items listed above, items 1 through 5, but not the loop, are included in this DXE-RF-30B package. 7. DXE-PRO-LOOP is the Replacement RF PRO 1B Loop that is ordered by customers who have all other components of their system working. When your damaged or defective loop needs to be replaced, this is the loop only part to order. RF-PRO-1B® Loops may occasionally need a replacement component or hardware package. DX Engineering RF PRO Loop Replacement Components are available right here, at DX Engineering!
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$17.49
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$464.45
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
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$595.99
DX Engineering Maxi-Core® 20 Feedline Choke and Mount Kits
DX Engineering Maxi-Core® 20 Feedline Choke and Mount Kits, DXE-MC20-FCM, provide current balance and feedline isolation on coaxial cables for all types of HF through 6 meter antennas including verticals, rotatable dipoles, directional beams and Yagi antennas. Intended for 50 ohm feedlines operated at low SWR, this combination of mounting plate bracket and effective 50 ohm RF choke handles full-legal-power-plus and provides higher common mode impedance (CMI) across a greater frequency range than competing feedline choke and line isolators and previous DX Engineering and Comtek models. High CMI across the AM Broadcast band and the HF/6M spectrum is essential to provide sufficient suppression of unwanted transmitted and received RFI/BCI current on the feedline shield exterior. With less noise and interference you will hear and be heard using a DX Engineering Maxi-Core® 20 Feedline Choke and Mount Kits. DX Engineering Maxi-Core® 20 Feedline Choke and Mount Kits bring new parts together to work on many types of antennas. They provide improved RF isolation and current balance at either end of the feedline and at the feedpoint of a vertical, a beam, rotatable dipole or other antenna feedline. This is a unique perpendicular choke mount that allows a beneficial separation between the ferrite of the choke and the antenna boom or mast, resulting in improved choking performance compared to a choke mounted on metal. The UV black high-strength polymer mounting plate provides additional isolation and holes for different mounting positions for the choke, horizontal or vertical. Stainless steel hardware is included to attach the plate to the stainless steel mounting bracket, which has laser cut holes for one of five optional DX Engineering Saddle Clamps to cover mast or boom sizes from 1 to 2 in. and 2.375 to 3 in. Click "More Detail" for additional information and click Suggested Parts for required optional items including one saddle clamp to fit your mast or boom and coaxial cable assemblies. Maxi-Core® 20 Feedline Chokes features high quality silver-plated PTFE dielectric SO-239 (UHF female) connectors. The SO-239 connector limits power handling to 5 kW or less at low SWR and reduced power at elevated SWR. These feedline chokes exhibit very low insertion loss and inherently low SWR. They are built into a convenient weather resistant NEMA enclosure with weep holes at all four corners of the "bottom" side of the enclosure, to vent properly when mounted vertically or horizontally for all types of antennas. Make your antenna play to its potential; reduce RFI and improve reception with DX Engineering Maxi-Core® 20 Feedline Choke and Mount Kits.
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$207.98
DX Engineering Skyhawk Tri-Band Yagi Antennas
DX Engineering Skyhawk™ Tri-Band Yagi Antennas are the choice of experienced DXers, especially if your interest is HF contesting. DX Engineering Skyhawk™ antennas provide the highest payback in performance and operating pleasure compared to any other single component in your station. The only better antenna choice is to combine one of our DX Engineering Skylark™ Dual-Band Yagi Antennas with the Skyhawk™! These well-designed, single-tower systems offer outstanding performance without the headaches of maintaining more substantial antenna farms. DX Engineering Skyhawk™ antennas reflect the latest computer-optimized design for maximum gain and bandwidth. They are built from the finest materials utilizing heavy-duty aluminum and all stainless steel hardware. Skyhawk™ operates from a single feed line and has a 90 mph wind survival rating! Have you ever had to replace a rotor in February? Skyhawk™ antennas offer minimal wind-loading for their size and are torque-balanced to reduce wear and tear on your rotor. Assembly is easy, as tower top adjustments have been eliminated and the elements are truly locked in place. DX Engineering Skyhawk™ features include: * 90 MPH wind survival rating * EZ-mount system for attaching antenna to mast * All parts de-burred * Stainless steel pop-riveted element locking * No user adjustment - just assemble it and put it up Additional specifications include: 20 meters: * Three elements * Effective boom length: 23 ft. * VSWR: less than 1.4:1 between 14.0 and 14.35 MHz, measured at feed-point * Front to back: >20 dB across the entire band * F/B peaks at 14.150 MHz at 21 dB * Gain: better than 7 dBi across band * 7.4 dBi gain at 14.350 MHz * Front lobe beam width (-3dB points) 63 degrees 15 meters: * Three elements * Effective boom length: 15 ft., 6 in. * VSWR: less than 1.5:1 between 21.0 and 21.45 MHz, measured at feed-point * Front to back: >16 dB across the entire band * F/B peaks at 21.350 at 24.5 dB * Gain: better than 7 dBi across band * 7.6 dBi gain at 21.45 MHz * Front lobe beam width (-3dB points) 56 degrees 10 meters: * Four elements * Effective boom length: 16 ft., 9 in. * VSWR: less than 1.5:1 between 28.0 and 28.9 MHz, measured at feed-point * Front to back: >14 dB across the entire band * F/B peaks at 28.5 at 21 dB * Gain: better than 7.7 dBi across band * 9.2 dBi gain at 28.9 MHz * Front lobe beam width (-3dB points) 47 degrees Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. So, what are you waiting for? Get a DX Engineering Skyhawk™ Tri-Band Yagi atop your tower, hook up your coax, and start working some serious DX! You've always heard about DX Engineering quality. DX Engineering Skyhawk™ Tri-Band Yagi Antennas are available now. Order yours today and enjoy great DXing with quality and value!
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$2,378.97