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23 Results Found For "in-line"
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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$201.99
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$239.99
DX Engineering Bent Pin Shackles
DX Engineering Bent Pin Shackles are used for guy line attachment to towers for Amateur Radio and commercial applications. Also known as a clevis in the power industry, these shackles are specially designed with a removable bent bolt and locking nut to go through the outer hole of the matching guy strain insulators commonly known as the "502" or the "504" in ham radio tower work. Forged from 1/2 in. steel and hot dip galvanized, these Bent Pin Shackles have a minimum ultimate strength of over 12,000 lbs. and have a rounded end large enough to be used around a tower leg. However, they are typically connected to a guy attachment tower ear or guy bracket, with a screw pin shackle used as a link. The insulators that fit inside of this shackle accept the guy line big grips from either metal or non-metallic guy lines. For those who already have insulators, Bent Pin Shackles are offered in a set of three for each level of guying. We sell the matching DXE-502 and DXE-504 insulators in sets of three. Also available are two kits that include three Insulators of either size and three Bent Pin Shackles. Look to DX Engineering for the unique tower hardware that you need.
Not Yet Reviewed
$231.99
DX Engineering Rotator Control Line Protectors
DX Engineering Rotator Control Line Protectors are custom made surge protectors designed for use on rotator cables - up to 8 conductors. We routinely protect power and antenna cables, why ignore rotator control cables? These protectors are also ideal for control lines of remote antenna switches and any low voltage control system where voltages are normally below 60V DC or AC. External terminals allow convenient connection while the surge devices remain securely protected inside the metal enclosure. DXE-IS-RCT features include: * Weatherproof metal enclosure with cover, mounting stud and terminal gaskets to deter water from entering the enclosure. * Terminal strips to connect up to eight rotator control wires * 1/4 in. x 20 mounting stud allowing multiple mounting configurations * Each line connection has an individual shunt MOV for maximum surge protection * Voltage spikes exceeding 82 Vdc (in either polarity) will be shunted to ground * RoHS compliant construction DXE-IS-RCT protectors are recommended to be installed on a tower leg or ground rod using an optional DXE-J-1 or DXE-J-2 Grounding Clamp or a DXE-UCGC Copper Ground Rod Clamp. The location you choose for your DXE-IS-RCT should provide a good, low-impedance ground connection. The surface to which a grounding clamp is connected should be thoroughly cleaned to a bright-colored surface and then treated with a conductive anti-oxidant coating. This procedure will minimize weather-related complications and improve conductivity for your DXE-IS-RCT. DXE-CCK Copper Cleaning Kits provide cleaning pads and copper paste which is ideal for this application. If a tower or mast is being used and is properly grounded, your DXE-IS-RCT may be connected to the base of that structure just above the grounding point. For best results, follow the installation instructions carefully. As with all electronic equipment, observe proper safety considerations. For example: Do not install your DXE-IS-RCT if there is a storm anywhere in your area. Do not adjust or touch the grounding system equipment when there is a storm anywhere in your area. Make sure all power is removed before making any adjustments or working on any ground system or grounding components. DXE-IS-RCT Specs: Surge Energy: 6500 A or 38 J (Max energy 8/20) Response Time: 10 ns typical, 25 ns max. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. For the best protection of your rotator systems, order and install your DX Engineering Rotator Control Line Protectors and keep the voltage surges off of your control lines.
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$189.99
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 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.
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$141.99
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$169.99
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 USB Isolator
DX Engineering USB Isolator, DXE-ISO-USB is an inline Solid State device that provides surge protection between two USB 2.0 devices, typically a transceiver and a computer. The DXE-ISO-USB is a passive device that requires no power, and it has two ports, one USB A and one USB B. It is bi-directional, so it can be installed in either direction. The supplied USB A to USB B standard patch cable, 19.7 in. (500mm), can be reversed and used for either type of equipment connection with the opposite connector to the mating port on the ISO-USB. A user supplied cable must have the opposite mating connector for the ISO-USB and its other end must have the USB connector type that provides connection to the second piece of equipment or computer. Often, an identical USB A to USB B will be on hand or is readily available. USB interface cables between several types of equipment can serve as a conduit to lightning pulses or other unexpected voltage pulses. For example, a damaging surge can occur whenever one device is connected to an antenna feedline that also has a USB cable to the other device, which is connected to a commercial AC power main, or through a DC power supply. The DXE-ISO-USB protects a transceiver from a voltage surge coming from the computer, and vice versa, it protects a computer from a surge from a transceiver. The maximum USB 2.0 speed of the DXE-ISO-USB is 480 Mbps (Mb/s). This supports RS-232 COM port data speeds greater than the fastest 115,200 bps baud rate selection found in most USB capable equipment. PLEASE NOTE: The DXE-ISO-USB does NOT support USB C Gb/s data speeds, and it does NOT pass sufficient DC current for charging or powering a device. Maximum current is 100mA (0.1A). It cannot be used for data storage devices and is not to be used for charging. In an unusual application, two different user supplied cables, USB A to USB C and USB B to USB C, could be used to provide DXE-ISO-USB protection between two USB C devices, as long as neither device is supplying or drawing power.
Not Yet Reviewed
$129.99
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 CC-4 Four Position Control Consoles
The DXE-CC-4 Four Position Control Console is used for remote switching of relay control devices requiring 1 of 3 positive voltage control lines with a ground return. This control console is directly compatible with: SSB Electronic Four-Port Mast-Mount Antenna Switches: AS-304 N (ESB-5050) AS-304 UHF (ESB-5053) WIMO Remote Polarization Switches: WMO-18080 WMO-18081 WMO-18082 WMO-18083 Unified Microsystems Receive Antenna Switch: UMS-RAS-4 (The DXE-CC-4 is an essential component for manual control of the UMS BevFlex-4X-Q Four-Direction Reversible Beverage Antenna System.) The DXE-CC-4 can be used in other applications using this control scheme: Control SWITCH Control Console Output Terminal 1 Terminal 2 Terminal 3 Position 1 - LED1 - ON 0 0 0 Position 2 - LED2 - ON +13.8 VDC 0 0 Position 3 - LED3 - ON 0 +13.8 VDC 0 Position 4 - LED4 - ON 0 0 +13.8 VDC The DXE-CC-4 Four Position Control Console features: • Large Rotary Knob • Stainless Steel Housing • Non-Skid feet • On-Off toggle switch • Four green LEDs indicate position chosen • Erasable position label fields • Filter capacitors on each line • Internal automatic resettable fuse • Includes a 2.1 mm power plug for +13.8 VDC power connection
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$161.99
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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$169.99
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$189.99
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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$103.99
DX Engineering Receive Feedline Voltage Couplers
DX Engineering FVC-1 Feedline Voltage Couplers provide an interface between control switches and voltage-controlled antenna systems. These specialized controllable bias-tee devices place 0V DC, +12V DC, -12V DC, and 12V AC output voltages onto the receive antenna feedline via the 75 ohm F connector or onto a 2-conductor control line. These FVC-1 couplers function from below 500 kHz to 30 MHz and provide four selections for switching antenna array directions or changing from one array to another. These couplers were designed for use with; the DX Engineering receive-only four-square antenna systems, reversible Beverage antenna systems, and remote switches. DX Engineering switch control consoles may be connected directly to the BCD switch control input of FVC-1 couplers. Alternatively, you may use your own 12V DC voltage switching system or 1 of 4 grounding switches to control the coupler by resetting internal jumpers. The connection of the feedline voltage couplers to any radio receive antenna input is to be made using either the standard RCA phono or the F connector. This allows for the use of readily available RF-compatible RCA phono patch cords or a 75 ohm coaxial cable and connectors, which protects your receive system from an accidental connection to transmitting equipment. FVC-1 feedline voltage couplers have two LED indicators--red and green--which indicate the presence and polarity of the output control voltage selected. The LEDs may function as directional indicators that can be read at a convenient distance or they can aid in troubleshooting. Each of our DX Engineering FVC-1 Feedline Voltage Couplers comes with a heavy duty 120V AC wall transformer, which provides a safe 12V AC to operate your receive antenna system. Here are other exclusive features of FVC-1 voltage couplers: * Metal housing--superior shielding, rugged, and easy mounting * Convenient installation--mount anywhere in your shack * Rugged control connector - a reliable, solderless, and removable connector with screw conductor clamps * Internal thermal reset fuse offers full protection against accidental shorts Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Got antenna switching voltages? DX Engineering FVC-1 Feedline Voltage Couplers will solve many switching needs easily and economically!
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$185.99
DX Engineering Dual Impedance Antenna Transformers
DX Engineering Dual Impedance Antenna Transformers are dual ratio UNUN (unbalanced to unbalanced line) transformers. They're great for coupling your 50 ohm coax to an antenna with a feed point impedance of either 25 or 12.5 ohms, typically found at HF mobile antennas. DX Engineering Dual Impedance Antenna Transformers are ideal for antennas that have been enhanced with a Hot Rodz capacity hat. These transformers are housed in an aluminum enclosure and use silver plated PTFE SO-239 connectors. Many mobile HF antennas are naturally between 10 ohms and 36 ohms at resonance. With 10 ohms at a 50 ohm feed point the resulting SWR is 5:1! Likewise, 36 ohms yields a 1.4:1 SWR. Matching at 1.4:1 isn't too bad, but 5:1 is definitely an issue. DX Engineering MM-1 Dual Impedance Antenna Transformers are ideal for adjusting the impedance mismatch in your HF mobile! When the natural resonant impedance of the antenna is at 30 ohms or below, the MM-1 mobile unun can provide the needed match. With a 50 ohm input, it provides a 25 ohm port and a 12.5 ohm port to facilitate mobile HF matching. Let's say that your antenna analyzer indicates a resonant antenna impedance of 22 ohms. Your SWR without an MM-1 would be 50/22 or 2.27:1. That's enough to cause considerable power rollback in most modern HF rigs. Using the MM-1 25 ohm port, your SWR would be 25/22, or 1.14:1. That's a very significant improvement! Many hams are using antenna analyzers to adjust mobile HF antennas. When a mismatch is indicated at resonance, a DX Engineering MM-1 Unun can solve the problem! Power handling capability depends on the match: * Using the 25 ohm to 50 ohm port, with SWR below 2:1 on the 50 ohm side, -- 750 watts PEP * Using the 12.5 ohm to 50 ohm port, with SWR below 2:1 on the 50 ohm side, -- 500 watts PEP Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Antenna analyzers are becoming more common. Buy or borrow one to check the impedance of your mobile antennas. Then get DX Engineering Dual Impedance Antenna Transformers to get the best match and highest efficiency you can!
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$184.99
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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$125.99
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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$119.99
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$239.98
DX Engineering EC-4 BCD Control Consoles
DX Engineering EC-4 BCD Control Consoles are used to control the DX Engineering Receive Four Square Series or any other products using a 4-position (3-wire plus ground) BCD control format. They feature an attractive powder-coated housing; have an on/off switch, green LEDs with scratchpad areas to mark the switch position function, and an ergonomic selector knob. Power input of 12V DC keeps you on the air in any situation. Additional features of EC-4 BCD Control Consoles include: * Stainless steel chassis * Non-skid feet * 4-position rotary switch * Four green LEDs indicate position chosen * Filter capacitors on each line * Control wire feed-through * Power connection * Internal automatic resettable fuse * Includes a 2.1mm power plug for 12V DC power connection Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Have you some switching to do? DX Engineering EC-4 BCD Control Consoles can make the switch!
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$171.99
DX Engineering PRO-STACK 3 Control Consoles
DX Engineering PRO-STACK Three Antenna Control Consoles, model DXE-EC-PS3, are custom made twelve-position rotary switch controls for manual operation of PRO-STACK Broadband Three Antenna Phasing Relay Units, models DXE-PS-3B and DXE-PS-3BDIN. DXE-EC-PS3 Control Consoles offer the following features: * Stainless Steel Housing * Non-Skid feet * On-Off toggle switch * Green LED power on indicator * Filter capacitors on each control line * Internal automatic resettable fuse * Includes a 2.1mm power plug for +12 V DC power connection Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DXE-EC-PS3 Control Consoles connect to the PRO-STACK Relay Units with 9-conductor control cable, or with 8-conductor cable plus ground using the coaxial cable shield as the ground return. These consoles were designed for the PS-3B series, but may be used for other applications which require a special BCD controller. See the EC-PS3 manual linked in the "Documentation" tab for detail on connections and the BCD truth table.
Not Yet Reviewed
$205.99
DX Engineering Maxi-Core® High-Power Multi-Band UNUNs
DX Engineering High-Power Multi-Band UNUNs with Maxi-Core® technology allow your antenna to perform to its fullest potential and reduce stress on your equipment. These specially tuned UNUNs, designed for non-resonant vertical antenna applications, operate more efficiently than similar competitive products. Lesser products may burn up easily on lower bands with QRO power levels. DX Engineering high-power UNUNs are specifically designed for applications with 43 ft. non-resonant, multi-band antennas, ensuring the best efficiency from your antenna and transmission line/tuner installation. The results are minimizing the additional transmission line losses caused by abnormally-high SWR. DX Engineering Maxi-Core® High-Power Multi-Band UNUNs can be added to any existing 43 ft. antenna installation or used to replace an older competitive UNUN for a performance increase. The UN-43-R includes mounting bracket and feed-point connections braids. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. All non-resonant vertical antennas present high SWR to their feed lines. Deal with it! Order DX Engineering High-Power Multi-Band UNUNs!
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$201.99
DX Engineering Receiver Guard Electronic RF Limiters
DX Engineering Receiver Guard RG5000HD Electronic RF Limiters are the best choice of inline devices to protect your receiver antenna inputs. The Receiver Guard is a receive antenna input limiter specifically designed to protect a sensitive receiver front-end against high levels of RF and potential damage. At the heart of each Receiver Guard is a highly effective electronic RF limiter covering 500 kHz to 150 MHz with an insertion loss under 0.15 dB up to 50 MHz and under 0.30 dB up to 150 MHz. The multi-stage design includes a gas discharge tube for maximum pulse energy protection. The DXE-RG5000HD rejects 10 watts of catastrophic receive antenna feedline RF while passing a maximum signal of about 87 dB over S-9, which is only 25 mw, a signal level that is well below the point of front end damage. Receiver Guards are a must for multiple radio contesting stations and they provide low-cost front-end "insurance." Use them in these common high-RF situations: - Receive antennas in very close proximity to transmit antennas - Field-day operations with many transmitters in close range - Multi-transmitter contesting sites - Neighboring Amateur and CB operators - Frequent high-power mobile encounters Extensively tested and proven in real-world stations, the Receiver Guard works for all radios and offers the ultimate performance required by the upper tier of transceivers tested to have the best narrow-spaced third-order dynamic range or published RMDR (Reciprocal Mixing Dynamic Range). These are passive electronic limiters, so competitive contesting stations use separate band filters in addition to the Receiver Guard. When there are high levels of RF on your receive antennas, the DX Engineering Receiver Guard generates far less harmonic noise than other limiters on the market, which allows your station to continue to operate safely and competitively. At normal HF signal levels the RG5000HD operates continuously with no effect on the performance of your station while providing the best possible protection for your radio. Here are key Receiver Guard features: * Keeps stray high levels of RF from damaging your receiver input * Ideal for separate 160 and/or 80 meter receive systems with large pulse and RF energy capture area * Uses state of the art components for maximum protection of receivers * Under 6 ns response time * Multi-Stage protection * Very low insertion loss * Uses BNC type connectors to avoid accidental connection to a transmit feedline * Has been developed and tested in world-recognized multi-multi contest station K3LR Specifications - DX Engineering Receiver Guard model DXE-RG-5000HD - Frequency Range: 0.5 through 150 MHz - Insertion Loss: < 0.15 dB up to 50 MHz, < 0.3 dB 50 MHz up to 150 MHz - VSWR: < 1.2:1 - Maximum Output Level at 10 W input: +14 dBm (0.025 W) - Maximum Power Handling: 10 W CCS (Continuous Commercial Service) - Device Impedance: 50 to 75 ohms, unbalanced - Connectors, Input and Output: BNC female Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. What happens if the receive antenna is extremely close to the transmit antenna, or there is an antenna support or other system failure that causes a high RF level to enter the receive antenna input? A DX Engineering Receiver Guard can save the day! Order yours now.
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$119.99
DX Engineering Phased Array Quarter Wave Tuned Cables
DX Engineering Phased Array Quarter Wave Tuned Cables ensure optimum pattern control and gain from your phased antenna system. These cables are custom built to your array frequency, made with the highest quality waterproof PE jacketed, direct-burial RG-11/U 75-ohm low-loss foam coaxial cable and terminated with silver plated PL-259s. From the system phasing unit to each array element, these phasing feed-lines are one quarter wavelength long electrically, which differs from the free-space dimension by the velocity factor of the cable. The electrical dimensions of these cables are critical to system performance. These cables, manufactured to DX Engineering specifications, have a nominal velocity factor of 0.82, providing plenty of physical length for easy burial and routing from the base of the vertical to the center-mounted controller. DX Engineering Phased Array Quarter Wave Tuned Cables are custom built by DX Engineering. Each is hand crafted and electronically tuned to a specific HF frequency. Typically, they are tuned to the same frequency as the antenna array. After placing your order for DX Engineering Phased Array Quarter Wave Tuned Cables, please inform us of the order number and your array frequency for your tuned cables by e-mailing dxengineering@dxengineering.com or by calling 800-777-0703 or 330-572-3200. You may leave a message after business hours. Custom cable assembly orders will process after we receive your frequency information. Please contact DX Engineering Technical Support if additional assistance is needed. We will contact you if we have any questions about your special order.
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$137.13
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$245.99
DX Engineering XB-5 Hexx Beam Mast Mount Kit
The all-new DX Engineering XB-5 Hexx Beam Mast Mount Kit, DXE-XB-5-MMK, is a component of the DXE-XB-5 Hexx Beam, used in the initial assembly and final mounting of the antenna onto a user supplied mast of 1.25 to 2.00 in. OD. The DXE-XB-5-MMK Mast Mount includes: - One Center Post Aluminum Mounting Tube, 1.50 in. OD for the XB-5 Hexx Beam - One Element Clamp for use on the Center Post during assembly. - One Mast Mount Plate, Heavy-Duty, 1/4 inch formed aluminum 16 x 5.125 in. with inline clamp holes - Two DXE-SAD-150A U-Bolt Saddle Clamps for the Hexx Beam Mounting Tube - Two DXE-CAVS-2P V-Bolt Saddle Clamps for the user supplied 1.25 to 2.00 in. OD mast. Additional lower holes accommodate two optional DXE-SAD-300B U-Bolt Saddle Clamps for only a 3.00 in. OD mast, or two DXE-CAVS-3P for a 2.00 to 3.00 in. OD mast, or two DXE-SSVC-3P Clamps for a 2.375 to 3.000 in OD steel mast ++++++++++++++++++++++++++++++++++++++++++++++++++++++ This DXE-XB-5-MMK Mast Mount Kit may also be used with the supplied Saddle Clamps to create a short extension at the top of a 1.25 to 2 in. OD mast with an optional 1.50 in. OD only tubing to mount a small VHF or UHF beam or vertical. This kit cannot be added to the top of any Hexx Beam. +++++++++++++++++++++++++++++++++++++++++++++++++++++ This aluminum plate is available separately as DXE-MTMP, to mount a 1.25 in. OD short upper mast. The two upper holes on this plate accommodate Stainless Steel V-Bolt Saddle Clamps model DXE-SSVC-150P for an upper mast mounting a range of 1.00 to 1.50 in. OD steel. The lower inner holes will accommodate two DXE-SSVC-2P Stainless Steel V-Bolt Saddle Clamps for a 1.00 to 2.00 in. OD steel mast, or the lower outer holes accept two DXE-SSVC-3P Stainless Steel V-Bolt Saddle Clamps for a 2.375 to 3.000 in OD steel mast. All applicable Saddle Clamps are sold individually, only at DX Engineering. Off-brand clamps will not fit this plate.
Not Yet Reviewed
$119.99
DX Engineering Clifton Laboratories Z10020 AM Band Filter Module
DX Engineering Clifton Laboratories Z10020 AM Band Filter Module drastically reduces RF signals in the 530 to 1700 kHz MW range while passing frequencies below and above this range with minimal attenuation. A large section of the AM Broadcast Band (BCB) is attenuated by nearly 70db with a maximum of 75dB. Response rolls off quickly above 490 kHz and below 1.8 MHz. Detailed plots demonstrate the excellent performance of this AM band receiving rejection filter. The DXE-Z10020-PM RX AM Reject Filter plug-in module is our version of the 7th Order Chebyshev design built to deliver the performance of the original Clifton Labs AM Broadcast Band (BCB) filter. It provides excellent Broadcast Interference (BCI) filtering performance for Amateur low band and commercial SW receive applications, with less than 2dB insertion loss across the 160 meter band. The DXE-Z10020-PM module can be installed in the DXE-DMC-2 Dual Module Chassis to create an inline high-performance receive-only AM Band Reject Filter. Or, install one of these versatile AM filter modules inside of the DXE-RPA-2 Receive Preamplifier or the DXE-RTR-2 Receive Antenna Interface. Two AM BCB Reject Filter modules will cover the two channels of the DXE-NCC-2 Receive Antenna Phasing Unit. The legacy built by Jack Smith, K8ZOA (SK), at Clifton Laboratories lives on with select products by DX Engineering.
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$163.99
DX Engineering Dual Module Chassis
The DX Engineering Dual Module Chassis is the connector and power interface box for all DX Engineering and Clifton Laboratories Plug-In Modules and Receive Filters. The DXE-DMC-2 is a versatile multi-purpose DX Engineering receive device box. It can be used for two passive plug-in modules or one powered module and one passive module. It is a great way to create a wide pass filter, or protect a receiver with a filter and a limiter, or add a preamplifier that has filtering or limiter protection. Here are the modules that can internally plug into the DX Engineering Dual Module Chassis: • DXE-Z10020-PM - Clifton Laboratories Z10020 AM Band Filter Module • DXE-Z10046B-PM - Clifton Laboratories Z10046 High-Gain Preamplifiers • DXE-RG5000HD-PM - Receiver Guard 5000HD Plug-in Module (passive) • DXE-IT-PM - 75 to 50 Ohm Impedance Transformer Plug-in Module (passive) • DXE-RPA-2-PM - Receive Preamplifier Plug-in Module (powered) • DXE-RXFL-1 - Receive Filter Adapter Board, for RXFL Filters (passive) One DXE-RXFL-1 Receive Filter Adapter Board is required to install any one of the RXFL filters listed below. They fit into the DXE-DMC-2, as well as the DXE-NCC-2, DXE-RTR-2 and DXE-RPA-2. The DXE-DMC-2 can accommodate one or two filters to create the filter type and input signal band pass frequency coverage and limitations that serves your needs. NOTE: The transition from the natural aluminum to the black powder coated chassis is occurring in early 2020. There is no internal electronic difference between them. Click on more details to see how you can build the receive accessory of your desires with the DX Engineering Dual Module Chassis.
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$195.99