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33 Results Found For "in-line"
DX Engineering 450 Ohm Ladder Line
DX Engineering 450 Ohm Ladder Line is a transmitting grade low-loss parallel-wire RF feedline featuring a strong, waterproof, UV black polyethylene insulation. To maintain the wire spacing between the conductors while reducing losses, the integral flat plastic material alternates with rectangular openings, which explains the "Window Line" nickname. Capable of handling over 3 kW of RF power, DXE-LL450 is a very low-loss transmission line across HF. It is ideal for exceptionally long feedline runs and for low band wire antennas operated on multiple bands on which the feedpoint impedance can vary significantly, causing mismatch and elevated SWR. Unlike coaxial cables, DX Engineering DXE-LL450 Ladder Line maintains low RF losses at frequencies where antenna feedpoint impedance mismatches cause high SWR. It can provide significantly higher efficiency than coaxial cable when feeding non-resonant antenna systems that are matched with a wide impedance range antenna tuner. DXE-LL450 450 Ohm Ladder Line is a high-quality flat RF feedline, about 0.938 in. wide (15/16") with two 16-gauge copper-clad steel wire conductors (29 AWG x 19 strands) that provide the strength to hold up for long spans between supports without twisting. It exhibits a nominal impedance of around 400 Ohms and a nominal Velocity Factor of 91 percent. For proper performance, LL450 Ladder Line must be installed suspended through the air supported by insulators every 25 ft. or less, kept at right angles and several inches away from other wires, and at least one foot away when run parallel to the earth or large metal surfaces. Installing with an axial twist of one turn per 10 ft. can reduce wind, rain and ice loading, RF coupling and RF noise. DXE-LL450 can be mounted with insulators and suspended on metal or wood posts or run along a wood fence line, only if the fence has no wires or metal mesh that couples RF noise or unbalances the feedline. Often used for non-resonant wire doublet antennas, DXE-LL450 can be more easily terminated outdoors to a DXE-MC20-C4-1 4:1 Balun or a DXE-MC20-1-1T 1:1 Balun. Then, with no inline switches or relays, directly connect the antenna system to a typical indoor wide range antenna tuner using a solid dielectric coax, not foam dielectric, to handle high voltage at high SWR. DXE-213U or DXE-214 Coaxial Cable Assemblies 12 or 18 ft. with PL-259s are perfect for this method, which eliminates the need for a special balanced tuner, and avoids the losses and detuning effects caused by unbalancing when ladder line is routed indoors near wires and ducts. DXE-LL450 is sold by the foot, previously sold as DXE-LL450-CTL, this is the same ladder line with a new part number. It is also available in spools of 500 ft. DXE-LL450-5C and 1,000 ft. DXE-LL450-1K, which are specified for DX Engineering Reversible Beverage System Antennas. NOTE: This type of feedline is intended for MF and HF use and is not suitable for use above 54 MHz. Also consider DX Engineering 300 Ohm Ladder Line, DXE-LL300, an excellent alternative low-loss HF feed line that reduces impedance extremes on non-resonant HF multiband antenna systems.
( 63 )
$792.99
Mastrant Antenna Support and Guy Line Ropes
Mastrant Antenna Support and Guy Line Ropes are available in several sizes and strength ratings, perfect for support of wire antennas, vertical antennas and antenna masts, as well as support of Yagi booms and elements. Mastrant ropes are of the highest quality for strength and are UV-protected for extended longevity. MASTRANT-O is a highly reflective rope (bright orange plus braided reflective tape) based on long-term proven Polyester (Dacron) product line. It is designed for maximum visibility in public places such as Field Day and POTA activities. Like all Mastrant ropes, it is UV stable and resistant to all weather conditions. It has low weight, great abrasion resistance, great durability and is nonconductive (no effect whatsoever on your antenna). Moreover, in contrast to ropes made from aramid fibers (Kevlar, Vectran, Technora, Twaron), it has knot strength about 60 %. Mastrant-P and Mastrant-R Ropes are stronger than other synthetic ropes of the same size, made from proven modern polyester. Mastrant-Q is a new rope made from a blend of polyester and polypropylene, designed specifically for guying applications. It offers an excellent performance-to-price ratio and has a knot strength of approximately 60%. It replaces Mastrant-P in diameters of 6 mm (1/4 in.) and larger. Mastrant-S is a similar polyester/polypropylene rope, distinguished by its highly reflective strands for increased visibility. Mastrant-M is their highest strength rope with the Dyneema® DM20 core, a superior synthetic rope offering high performance at an affordable price. Very high strength, negligible elongation, very low weight, and great abrasion resistance are all attributes that make Mastrant-M the best rope for guying. Larger, stronger sizes of Mastrant-M are used in Europe and other parts of the world for tower guying. Durability and safety are of prime concern to ensure that an antenna installation remains fully operational for a long time. Antennas and guy lines are exposed to changing weather conditions, mechanical strain, UV radiation, humidity, and more. These non-conductive synthetic fibers have all the necessary qualities: high strength, negligible stretch but good flexibility, long life, low moisture collection, fast drying, a minimum bending radius adding the ability to tie knots, good UV radiation resistance, weather durability and resistance to acids and alkali. Conversely, steel guying wires are heavy, difficult to work with, and their strength deteriorates with time due to corrosion and general aging. Electrical conductivity of steel guys is an undesirable feature, as they interact with the antennas and adversely modify radiation patterns. Thanks to recent developments in synthetic materials, both amateur and professional users are changing over to non-conductive guys and ropes. Mastrant offers these products for a variety of applications, from thin support lines used for wire antennas and beams, to rope guys for supporting small and portable masts and vertical antennas. When you need quality rope to install, replace, or modify your antenna systems, consider Mastrant Antenna Support and Guy Line Ropes, now available from DX Engineering.
( 186 )
$995.99
REZ Antenna Systems Scout XFORM Antenna Kits
REZ Antenna Systems Scout XFORM Antenna Kits are designed to get you up and running fast. Based on the Scout XF Base, these versatile kits contain the parts you need to set up portable antennas in the field for portable operations. Each kit provides the building blocks to set the XFORM antenna system up in a variety of ways. What type of antenna you can set up with each kit is varied but comes with the parts to set up at least a vertical and a delta loop. The REZ Antenna Systems SXF-41KIT1 includes: the REZ Ranger Pro backpack, the REZ Scout XF mounting base, the XFORM 4:1 UNUN, the REZ Multi Mount, the REZ Ground Spike, the REZ common mode feedline choke, two REZ 17-foot Stainless Steel telescopic whips, and the REZ Delta Loop Antenna Wire kit. The REZ Antenna Systems SXF-41KIT2 includes: The REZ Scout XF mounting base, the XFORM 4:1 UNUN, the REZ Multi Mount, two REZ 17-foot Stainless Steel telescopic whips, and the REZ Delta Loop Antenna Wire kit. The REZ Antenna Systems SXF-41KIT3 includes: the REZ Scout XF mounting base, the XFORM 4:1 UNUN, the REZ Multi Mount, the REZ common mode feedline choke, two REZ 17-foot Stainless Steel telescopic whips, and the REZ Delta Loop Antenna Wire kit The heart of these REZ antenna kits is the Scout XF mounting base, which is designed to connect your coax to the rest of the XFORM system. Featuring a pair of 3/8x24 studs, a ring for hanging the Scout and coupling nuts, this versatile mounting base allows for your antenna to be oriented in multiple ways. Connection points along the base allow for easy attachment of radials. The REZ XFORM 4:1 UNUN mounts to the top of the Scout XF mounting base and adds a 4:1 transformer to the antenna system. This is useful when setting the antenna up as a delta loop or a Rybakov Vertical. Gaskets on the UNUN allow for sealing against inclement weather. The REZ Multi mounts allow for attaching the Scout XF base to the Ground Spike or a tripod. Providing three 3/8x24 threaded holes on the top, one horizontal, and two at 45-degree angles opposite each other as well as a 3/8x16 and a 1/4x20 for mounting on a REZ Ground Spike or the REZ [Z]Pod Tripod. Comes with a 3/8x24 stud for mounting to the Ground Spike or [Z]Pod Tripod. The REZ Delta Loop Antenna Wire Kits are a 25-foot-long wire that is designed to be paired with a pair of 17-foot stainless steel telescopic whips. Copper clips on each end of the [Z]Kore Kevlar antenna wire provide a solid connection to the telescoping whips, and the wire stores on a convenient wire winder to keep the wire neat and for easy deployment and storage. The REZ [Z]-17SS Stainless steel whips are 17-foot-long telescopic whips that collapse down to 24 5/8in. Weighing in at 14.4 oz, with a power rating of 1000W PEP, these 17-foot whips are resonant on 20-6 meters by themselves or up through 40 meters with the addition of an XFORM UNUN. The REZ CM7 Common Mode feedline chokes provide a reduction in common mode current that travels back down your coax and causes issues for radiating your signal. These quality feedline chokes help keep the RF radiating from the antenna where you want it and not the coax. The REZ Ranger Pro Backpacks provide a convenient way to carry your REZ antenna system and ancillary gear into the field. Depending on the size of your radio and battery, you may be able to carry your entire portable setup in this backpack. This quality pack makes it easy for organization of all of your portable gear with multiple pockets and Molle webbing for additional attachment points to hold your gear.
Not Yet Reviewed
$759.94
Toptek Communications PA-350V VHF 135-165 MHz 350W Power Amplifiers
Toptek Communications PA-350V VHF 135-165 MHz 350W Power Amplifiers are advanced and versatile high-power linear amplifiers designed for Amateur Radio 2 Meter FM, SSB and CW operations and Commercial VHF. A large, easy-to-read green backlit Alphanumeric LCD provides simultaneous digital input power, output power, SWR readings. Front panel button actions and specialized, user-defined function readouts and menu selections are displayed, including incremental 100, 200, 300 and 350W power output settings. This VHF amplifier* delivers approximately 300 watts output with only 5 watts input from an HT or 350 watts maximum output with a VHF mobile. The PA-350V has two selectable input ranges, Low 15W max and High 30W max, achieving 350 watts output with either 10 watts input or 15 to 25 watts input, to accommodate almost any VHF transceiver. Multiple protection circuits, a Receive Low Noise Amplifier (LNA) with bandpass filter, RF sense or PTT keying (required for SSB/CW) and thermostatically controlled fans are some of the great features of this top-of-the-line Toptek amplifier. True 50 ohm Type-N RF connectors maintain the highest efficiency to the feedline and antenna. NOT compatible with DMR and P25 modes NOTE: Rear panel accessory jack (4-pin mini-DIN) is provided for the accessory REMOTE Control Panel, TEK-REMOTE. *Requires 13.8 VDC @ 50A max. (External power supply not included).
( 18 )
$879.99
Coaxial Dynamics Broadband Multirange Directional RF Wattmeters
Commercial-grade VHF/UHF wattmeters don't have to be outside the ham's budget! Coaxial Dynamics Broadband Multirange Directional RF Wattmeters and Peak Reading Broadband Wattmeters are reasonably priced and very easy to use. Just connect the wattmeter between the RF power source and antenna or dummy load, select the power range, then rotate the broadband non-removable element to select the forward or reflected direction. The RF power is directly displayed on the large, 4-1/2 in. mirrored meter. Coaxial Dynamics Broadband Multirange Directional RF Wattmeters allow you to measure RF power in 50-Ohm coaxial cable and transmission lines across a wide VHF/UHF frequency range without the need for additional plug-in elements. Peak Reading models are designed to measure RF power in amplitude modulated systems such as television, telemetry, radar and peak envelope power (PEP) such as SSB and AM signals. A special non-removable Broadband Element and power selection switch allows power measurement on one of 5 selectable full-scale ranges of 5, 15, 50, 150, and 500 watts or 15, 50, 150, 500 and 1,500 watts across frequencies of 25 to 1000 MHz. When making measurements below 100 MHz, simply multiply the meter reading by the correction factor found conveniently on the back of the wattmeter. Versatile and strong, these wattmeters are protected by a rugged, virtually indestructible shock-proof housing. Coaxial Dynamics wattmeters employ a rugged shock mounted meter for dependable readings. Along with superior taut band meter technology, they provide consistently accurate readings that satisfy both the US Navy and Canadian standards for shock and vibration. This is your assurance of complete and dependable accuracy! Note: For additional product information, please look at the files under the "Documentation" tab. Coaxial Dynamics Broadband Multirange Directional RF Wattmeters and Peal Reading Broadband Wattmeters are ideal for low power VHF and UHF measurements and offer commercial quality, accuracy and flexibility that Amateur Radio operators can actually afford! Order one of your own Coaxial Dynamics wattmeters from DX Engineering… today!
Not Yet Reviewed
$855.00
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$950.00
Coaxial Dynamics RF Peak Reading Wattmeters
Would you like commercial-grade quality and peak-power measuring capability on a budget? When you need measurements in the 2 to 2300 MHz frequency range and from 100 mW to 10 kW, you need to get your hands on one of these Coaxial Dynamics RF Peak Reading Wattmeters! Combined with the appropriate element, Coaxial Dynamics RF wattmeters are very easy to use. Just connect the wattmeter between the RF power source and antenna or dummy load then rotate the element to select the forward or reflected direction. The RF power is displayed directly on the large, 4-1/2 in. triple-scale mirrored meter. Peak reading meters are designed to measure RF power in peak envelope power (PEP) such as SSB (single-sideband), DSB (double-sideband) and AM (amplitude modulation) signals. Interchangeable standard plug-in elements, such as those used with Coaxial Dynamics averaging meters, work with these peak-reading meters. To complement each application and specific requirement, Plug-In Elements are selected separately by power and frequency ranges. Similar in appearance and operation to their standard wattmeters, these devices convert from average reading to peak reading with the flip of a switch! This is accomplished by inserting a peak-reading amplifier between the element and the meter. With peak reading circuitry that operates on one 9 volt replaceable alkaline transistor battery (supplied), normal, portable usage is possible for at least 90 days or the life of the battery. Versatile and strong, these wattmeters are protected by a rugged, virtually indestructible shock-proof housing. Coaxial Dynamics wattmeters employ a rugged shock mounted meter for dependable readings. Along with superior taut band meter technology, they provide consistently accurate readings that satisfy both the US Navy and Canadian standards for shock and vibration. This is your assurance of complete and dependable accuracy! Self-contained and requiring no line power in either Peak or Average mode, these RF wattmeters are the right choice for portability and functionality. Note: For additional product information, please look at the files under the "Documentation" tab. Coaxial Dynamics RF Peak Reading Directional Wattmeters are ideal for professional and Amateur Radio measurements and offer commercial quality, accuracy and flexibility that everyone can afford. Order your Coaxial Dynamics wattmeters from DX Engineering and know your transmit power… for certain!
( 2 )
$870.00
American Beauty Resistance Soldering Systems
American Beauty Resistance Soldering Systems offer the most advanced and complete line of resistance soldering systems available anywhere in the world. You'll find power ratings between 100 and 3,000 watts, and various tool styles and compositions. You may use them to work on anything from tiny hobby/craft projects to soldering large copper plumbing. Here are just a few of the advantages: The concentrated heat reduces soldering time by many times over. Poor solder joints are often the result of insufficient heat throughout the joint, creating weak spots; these systems eliminate such problems. Traditional soldering methods may introduce too much heat into surrounding areas, damaging critical components or de-soldering previously soldered joints. Using resistance soldering systems will improve quality and reduce waste! Resistance soldering systems are ergonomic and versatile. Lightweight hand pieces cool within seconds, greatly reducing the likelihood of repetitive strain-injury and virtually eliminating the burn risk for the user. Versatile systems allow for easy access to restricted areas on circuit boards and inside cabinets. Resistance soldering systems can save you money! Instant heat means you're not paying to heat a soldering station all day long. Electrodes last twice as long as soldering tips and don't require constant re-wetting, thereby reducing consumable waste. American Beauty Resistance Soldering Systems get the job done. Stop trying to perform your difficult soldering operations the same old way with the same old tools. Contact DX Engineering to own of these American Beauty Resistance Soldering Systems today!
Not Yet Reviewed
$799.00
Times Microwave Systems® Bulk Coaxial Cables
Times Microwave Systems Bulk Coaxial Cables are recognized as superior RF cable products. The standard Times Microwave LMR® is a UV-resistant polyethylene jacketed cable designed for 20-year service in outdoor use. Depending upon size, LMR® cable has a solid copper or copper clad solid aluminum center conductor. Their bending and handling characteristics are significantly better than air-dielectric and corrugated hard line cables. LMR-DB® cable has a waterproofing compound to prevent moisture intrusion after a minor abrasion. Times Microwave Systems EZ Series and TC Series connectors are suitable for use on standard LMR® and LMR-DB® cables. Times Microwave Systems LMR® UltraFlex (UF) cables have a stranded bare copper center and a rubber jacket (black thermoplastic elastomer) designed for repeated bending. Times Microwave TC Series crimp connectors are designed for use on LMR® UltraFlex cables. LMR®'s RF shielding is typically 50 dB greater than standard coax. The copper shield and multi-ply bonded foil outer conductor is rated conservatively at greater than 90 dB. That's better than 180 dB isolation between two adjacent cables. A wide variety of connectors are available for LMR cables, including all common interface types, reverse polarity, and a choice of solder or non-solder center pins. Most LMR connectors employ crimped outer attachment using standard hex-crimp methods. Times Microwave Systems is a premier supplier of coaxial cable products worldwide. Only Times offers a range of products specifically developed to perform as needed in the most diverse range of environments. Times Microwave Systems has over 60 years of experience in building the highest-quality cables. Order LMR® coaxial cables from DX Engineering and put Times Microwave Systems Bulk Coaxial Cables to work for you! LMR® is a registered trademark of Times Microwave Systems.
( 106 )
$874.99
Yaesu G-5500DC Azimuth-Elevation Rotator Systems
Yaesu G-5500DC Azimuth-Elevation Rotator Systems are specially designed to accommodate horizontal cross-booms to mount pairs of VHF and UHF directional antennas for space communications. Providing simultaneous control of 450 degrees of azimuth rotation and 180 degrees of elevation rotation, they are perfect for EME (moon bounce) and satellite communications installations. The G-5500DC dual controller lets you adjust and keep track of both aspects of the antenna system's positioning. The 120 VAC controller includes an interface jack for computer control, supported by the optional GS-232A Computer Controller, as well as many aftermarket control programs and interfaces. These azimuth and elevation rotators are actually two separate motor units, now DC controlled. They may be mounted together on a mast with the included mast bracket, or independently with the azimuth rotator inside a tower and the elevation rotator mounted on the mast above the top of the tower. They handle a total of about 10 sq. ft. of antenna wind load and rotate each way in about one minute. The Yaesu G-5500 AZ-EL clamshell rotator design utilizes 98 heavy 7/16-inch dual-stacked circumferential ball bearings to distribute load over the full diameter of the housing. This design minimizes stress and wear, and practically eliminates the possibility of destructive water entry: there is no shaft hole in the top of the housing. Yaesu's factory-lubricated rotator units are housed in Melamine resin-coated die-cast aluminum intended to provide maintenance-free operation under all climatic conditions. IMPORTANT NOTE: Beginning in 2019 the new Yaesu G-5550DC azimuth and elevation motors operate with two independent 22 V DC control lines, each a five-wire system, using the same connectors at the end of the control cable as the previous models. Both of the new DC motors, azimuth, and elevation, are marked "G-5550DC" at the connector. Be sure to mark your connectors AZ or EL. The rear panel of the controller is titled "G-5500DC" on the serial number label. WARNING: The legacy Yaesu G-5500 Rotator motors and controller used a 26 VAC control voltage, six-wire system. Therefore, old AC controllers are NOT compatible with new DC rotator motors, and new DC controllers are not compatible with old AC rotator motors. All control cable assemblies for all modern Yaesu rotator systems use the same connectors with "1 to 1 pin-out" connector wiring. Therefore, older cable assemblies are compatible with the new Yaesu G-5500DC components, which only use pins 1, 2, 3, 4 and 5 in each connector. For control cable runs less than 125 ft. use five-conductor, 20 gauge control cable (5 x 20 AWG). If the rotator cable needs to be longer than 125 ft. then use five-conductor 18 gauge cable (5 x 18 AWG). The input voltage for the G-5500DC controller is labeled "117 VAC" to indicate house current range of 110 to 120 Vac. When you are launching your EME or satellite communications adventure, an azimuth/elevation combination rotator is a vital tool for your antenna system. As durable as they are attractive, Yaesu G-5500DC Azimuth-Elevation Rotator Systems are available from DX Engineering.
( 17 )
$969.99
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!
( 19 )
$955.99
RigSelect Pro Transceiver Switch and SO2R Controllers
RigSelect Pro Transceiver Switch and SO2R Controllers boast an extensive array of capabilities that make it possible to implement an award winning SO2R station where any two of up to four connected radios can be selected as the SO2R pair, and in any order. Switch one set of headphones, microphone, paddle/key, and PTT line among any of four radios. RigSelect uses quiet solid-state relays for all audio switching, which makes Switching extremely fast and telecom quality relays are used for all Mic, Key, and PTT circuits. Additionally, the RigSelect Pro features a crisp color TFT display for status and menu operations.
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$859.99
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RigExpert Antenna Analyzers
RigExpert Antenna Analyzers are powerful antenna analyzers designed for testing, checking, tuning, or repairing antennas and antenna feed-lines. Mainly, these are SWR (Standing Wave Ratio) and impedance measurement instruments (vector impedance analyzers). Their large, bright LCD screens provide graphic illustration of SWR, impedance; return loss, and much more. Easy to use measurement modes, as well as additional features such as connection to a personal computer (to plot SWR, R, X and Smith charts, etc.); make RigExpert Analyzers attractive for professionals and hobbyists alike. They are compatible with several operating systems, including Windows© 10, 11 and Mac, with software download*. The graphic display of various parameters over a wide frequency range is a key feature of these analyzers. This significantly reduces the time required to adjust an antenna. ZOOM models allow you to zoom-in on graph points for clearer analysis. USB connection allows export of sweep files with Antscope for Android or Antscope2 software to PC or MAC. *(download from the manufacturer https://rigexpert.com/products/software/). Many models have Bluetooth for direct file transfer for galvanic isolation without a USB cable, which provides the most accurate measurements. RigExpert Antenna Analyzers are available in several models with greater frequency range of operational features. Some have SO-239 UHF female connector, except for most models that operate at 230 MHz and above that have a Type N female connector. An array of options are available to cover almost any need for the professional and the Amateur. The following tasks are easily accomplished by using RigExpert Antenna Analyzers: * Rapid check-out of an antenna * Tuning an antenna to resonance * Antenna SWR and impedance measurement and comparison before and after a specific event (rain, hurricane, winter, etc.) * Making coaxial lines or measuring their parameters * Cable testing and fault location * Measuring capacitance or inductance of reactive loads *Send data to laptop for larger graphical display and further analysis. Note: For additional product information, please look at the files under the "Documentation" tab. When you need a versatile antenna analyzer for Amateur Radio or professional use, you'll find that one of these RigExpert Antenna Analyzers, from DX Engineering, will be well suited to the task!
( 513 )
$999.95
SSB Electronic Mast-Mount Preamplifiers
SSB Electronic Mast-Mount Preamplifiers are low-noise, band-specific, weatherproof preamplifiers designed for installation near VHF and UHF antennas. Available for the 6 meter, 4 meter (Europe), 2 meter and 70 cm Amateur bands, these preamplifiers are installed in-line, at the antenna. They improve receive performance by amplifying weak signals before feedline loss can reduce them. Powering and Sequencing Most models can be powered remotely through the coaxial cable, and many modern transceivers include a built-in bias-tee for mast-mounted preamplifiers. If the transceiver or transverter system does not provide power, an external bias-tee or remote-feed unit is required. • The DCW-15 and DCW 2004B provide sequencing support. • The DCC-12 does not provide sequencing. • SP series preamplifiers include a built-in RF VOX circuit for safe operations up to 100 watts; for transmit power above 100 watts, PTT control with a sequencer is required. Some models require a direct DC connection (UHF female). • -S series preamplifiers feature lower current signal relays with slightly higher insertion loss. • MHP and MHP-S series preamplifiers versions require sequencer control (see below). Signal Filtering and Switching Built-in helix filters effectively reject out-of-band signals, helping maintain clean receive performance. Real coaxial relays handle transmit/receive switching, resulting in very low insertion loss (except for SP-S series). And each amplifier is carefully calibrated at multiple test stations before packaging. Dual-Band Models Dual-band models include built-in diplexers, so they require only one connection for the multiband antenna and one connection for the station coaxial cable. MHP Series for Demanding Stations The MHP series is designed for demanding operating environments and provides higher gain for weak-signal modes such as Tropo-DX and EME. With maximum transmit power handling of 1500 watts on 6m and 2000 watts on 2m and 70cm, these preamplifiers are well suited for contesting, DX, and EME operation. Important Note for MHP Models Bias-tee power (on the RF coax) is not supported in most MHP Preamplifiers. They must be powered directly using the appropriate cable size for the required distance, and they may only be operated with a correctly wired sequencer, such as the DCW 2004 B Sequence Controller. Transmitting high power without a directly wired sequencer is likely to damage the MHP preamplifier. Housing and Hardware All SSB Electronic Mast-Mount Preamplifiers are supplied in UV-resistant, weatherproof housings with Type N female connectors. Hot-dip galvanized clamps and stainless steel mounting hardware are included. See individual models for band coverage and detailed specifications.
Not Yet Reviewed
$770.99
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$965.99
Diex Antennas Multi-Band Trap Shortened Rigid Rotatable Dipoles
Diex Antennas Multi-Band Trap Shortened Rigid Rotatable Dipoles offer high performance multi-band HF operations, and they are an excellent choice where there's not enough space for a full-size dipole or Yagi. Crafted with precision in Brazil using quality materials, these aluminum tubing antennas are designed to withstand tough environments assuring long-lasting, exceptional performance. They are packed partially assembled, saving valuable time and effort. Typically mounted on a rotating mast, these unique multi-band HF antennas provide high-band directionality depending upon installed height above ground. Given the nature of shortened low-band antennas with limited SWR bandwidth, these antennas feature the flexibility of physical adjustment to set the lowest SWR to a specific frequency. DIEX Antennas Multi-Band Trap Shortened Rigid Rotatable Dipoles power handling is 1500W PEP SSB, which is further limited if using an antenna tuner. NOTE: Diex Antennas recommends that a directional HF antenna should be mounted on a tower at a minimum height of 33 to 50 ft. (10 - 15 meters) above ground level and must be installed in the clear, away from power lines, trees, buildings or other towers and antennas.
( 3 )
$765.99
West Mountain Radio CBA Battery Discharge Amplifiers
West Mountain Radio CBA Battery Discharge Amplifiers make testing batteries at high discharge rates easier than ever! These amplifiers are very simple in concept: They are a DC amplifier that amplifies and regulates discharge current (load) with a total of 10X amplification-factor as set by the software. The Computerized Battery Analyzer (CBA) is actually doing one-tenth of the discharge work and the amplifier is doing the other nine-tenths. The amplifier simply senses the current drawn by the CBA and amplifies the discharge current setting of the CBA for a total of ten times the set current. CBA Battery Discharge Amplifiers are designed and recommended only for COMMERCIAL OR INDUSTRIAL use. They are not intended for a hobbyist, as they will easily test batteries at destructive limits. It is NOT recommended to test batteries at advertised maximum ratings--maximum discharges may significantly shorten the life-cycle of a battery. CBA Battery Discharge Amplifiers are designed to be left in-line and switched off for discharge rates that are less than 100 watts or less than 10 amps. At these power levels, a CBA alone can handle the discharge current. If your battery analyzer application calls for a high rate of discharge when performing battery testing, then contact DX Engineering today for one of these West Mountain Radio CBA Battery Discharge Amplifiers! Look at these specifications! * Max. continuous discharge rate: 500 W * Discharge rate amplification (typical): 10X +/- 1% * Absolute-maximum operating voltage: 55 V * Max. discharge rate: 160 A (battery dependent) * Min. voltage for 160A discharge: 0.9 V at test completion (battery dependent) * Connectors: Supplied copper bus 5/16 bronze battery connectors; Powerpole CBA connectors * Fan operation: Auto sense, requires 1A or more current from CBA (stays on approx. 5 min. after test completion) Note: For additional product information, please look at the files under the "Documentation" tab. West Mountain Radio CBA Battery Discharge Amplifiers from DX Engineering are the best way to do detailed battery analysis!
Not Yet Reviewed
$799.95
DX Engineering RigExpert Antenna Analyzer/NANUK Case Combos
DX Engineering RigExpert Antenna Analyzer/NANUK Case Combos are the ideal antenna analyzer and protective carrying-case set for professionals or Radio Amateurs. RigExpert Antenna Analyzers are powerful antenna analyzers designed for testing, checking, tuning, or repairing antennas and antenna feed-lines across a wide frequency range. Their large, bright, LCD screens provide graphic illustration of SWR, impedance; return loss, and much more. The following tasks are easily accomplished by using RigExpert antenna analyzers: * Rapid check-out of an antenna's performance * Graphic analysis. * Tuning an antenna to resonance * Provides internal storage of antenna data * USB output allows mass PC storage of antenna data * Perform antenna SWR and impedance measurements and comparisons before and after a specific event (rain, hurricane, winter weather, etc.) * Making tuned coaxial lines or measuring their parameters * Cable testing and fault location (TDR function) * Measuring capacitance or inductance of reactive loads * Specific models include Bluetooth capability for plot file transfer directly to Android, PC and MAC devices without USB connection Note: For details on the individual antenna analyzers and NANUK cases in these combos, go to the "More Detail…" page and click the "Kit/Combo Contents" tab. You may then click the links to individual items in the combo. Easy to use measurement modes, as well as additional features such as connection to a personal computer (to plot Smith charts, etc.); make RigExpert analyzers attractive for professionals and hobbyists alike. The graphic display of various parameters over a wide frequency range is a key feature of these analyzers. NANUK Equipment Cases are designed to protect your most sensitive equipment in even the harshest environments. Every detail of NANUK cases has been refined and perfected to offer the utmost in protection and performance. Teamed with your RigExpert analyzers, NANUK equipment cases offer these exceptional qualities: * Waterproof; watertight to IP67 standards** * Impact resistant** * Crushproof * Dustproof** * Available in your choice of colors * Combo includes high-quality NANUK shoulder strap ** Certified to have passed ATA300 impact standards, ASTM D4169 impact, rain, vibration and drop tests, Mil-STD-810F immersion test and IP67 ingress protection tests. For more detailed information on NANUK cases, please search NANUK in our search window. From their high-impact NK-7™ resin to their PowerClaw™ latches, these virtually indestructible, lightweight, watertight cases offer the ultimate grade of protection for your equipment. Pick 'N Pluck foam squares may be easily removed to accommodate the contents of the case. Customize your RigExpert analyzer case to your own needs! You're investing in a fine piece of test equipment. Protect that investment with DX Engineering RigExpert Antenna Analyzer/NANUK Case Combos and your analyzer will always be clean, dry and safe from impact. * Important Note regarding DX Engineering Protection Plans and Kit Combo Contents Protection plans cannot be purchased for combination packages or on applicable devices after shipment. DX Engineering Combination Kits and Packages are designed to help you easily visualize and order the right items for your specific needs. However, we encourage you to contact our experienced Technical Sales Team for assistance. We can help adjust the kit contents, suggest substitutions based on stock availability, and offer DXE Protection Plans for radios and devices when applicable. Contact us for Expert assistance and make informed purchasing decisions with our guidance.
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$784.90
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$834.94
Palstar AT2KD Differential Antenna Tuners
Palstar AT2KD Differential Antenna Tuners are American-made, impedance-matching networks that can optimize the performance of your antenna with your transceiver or SWL receiver. Offering 160 through 6 meter band coverage and up to 2,000 watts PEP power handling, simply put, AT2KD's are the highest quality differential-T antenna tuner on the market! Palstar AT2KD tuners have two impedance-matching controls, with a 6:1 Vernier reduction drive for capacitor tuning with precision and accuracy, and a turns counter indexed inductor crank handle to facilitate coarse tuning adjustments. Using a T-type circuit configuration, with an innovative dual-stator differential variable capacitor design, operation is simplified by reducing the number of knobs and eliminating false peaks while tuning. This design fits into in a more compact case that takes up less room. AT2KD tuners feature a precision roller inductor with a steatite ceramic core for excellent power handling and a wide tuning range. With a rugged 3 kV, 6-position selector switch, AT2KD tuners offer unbalanced tuned and bypass outputs for two antennas. A third unbalanced tuned output may be used on any antenna, even with an external balun for balanced line feeders. Also, one bypass output may be used for direct connection to another antenna or dummy load. The input and output connectors are SO-239 (UHF female) connectors. Palstar AT2KD tuners features a new LED backlit peak and peak hold and a dual-movement cross needle power and SWR meter, with a frequency-compensated coupler and a 2-position 300 W/3000 W power range selector. Built into an attractive case, AT2KD front panels and top covers are powdercoated and their chassis are made with 11 ga. (0.090 in.) iridite-treated aluminum. A 12 Vdc power connector and cable are provided for the meter circuit for each tuner. Specifications of Palstar AT2KD Differential Antenna Tuners: --Input Tuning: 5 kV Dual-stator differential capacitor (430pF - 13pF - 430pF) --Inductance: 25 uH roller inductor; 12 ga. wire wound on steatite ceramic core, silver plated bar/wheel --Frequency Coverage: 1.8 - 54 MHz --Power Maximum: 2000 W PEP SSB, 1500 W single tone --Impedance Range 20 to 1500 ohms, 1.8 - 30 MHz (assuming resistive load) lower power for lower Z range Note: For additional information, please look at the files under the "Documentation" tab. Reliable operation for many years is worth so much more than a purchase price. Designed and manufactured to the highest quality standards, a Palstar AT2KD Differential Antenna Tuner will provide exceptional operation in your shack. Buy one here at DX Engineering today!
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$795.99
RM ITALY MLA-400V HF Amplifiers
RM Italy MLA-400V HF Amplifiers cover all Amateur Bands, 160 through 10 meters providing up to 400 watts output on HF with only 35 watts maximum input. These amplifiers are the perfect choice for operators that want to bump their 100-watt radio to a higher power level. Featuring four Toshiba 2SC2879 arranged in a parallel push-pull configuration, the MLA-400 provides clean Class AB power output up to 400 watts. Six Low Pass filters with frequencies of 3, 4, 5, 8, 15, 22, and 31 MHz reduce unwanted harmonic output and may be selected automatically or manually. An onboard microprocessor controls all aspects of the amplifier including its various protection circuits. Protection is provided for excessive input power, excessive output power, excessive load SWR, out of band operation and excessive temperature. The four Toshiba 2SC2879 MOSFETs are attached to a chassis sized heatsink that has two fans for additional cooling. The front panel features indicators for the currently selected band, power output SWR, protection alarm, transmit indicator and SSB delay. The rear panel features SO-239s for input and output, a female RCA for a PTT line and the power connector. The MLA-400V requires 70 amps at 13.8 volts DC and can be used either in a fixed location or in a mobile install. The chassis has points that can be used for securing the amplifier in a mobile installation.
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$999.99
DX Engineering TFS4 Series B Transmit Four Square Systems
DX Engineering TFS4 Series B Transmit Four-Square Systems bring together the highest level of engineering excellence with the practical realities of operator convenience and ease of installation. These four-square hybrid systems are available in versions for the 160, 80, and 40 meter bands. They can be easily dropped into your quarter-wave spaced vertical 4-antenna array to provide optimum directional control. They allow the operator to receive or transmit with 5.5 dB gain in any one of four directions with a 20+ dB front-to-back ratio for interference reduction from unwanted directions. You can also switch to a single Omni-directional pattern with a push of a single button. This combination permits you to listen "all-around," unhindered by pattern nulls, and then select the best direction for signal reception and noise rejection. TFS4 Series B Transmit Four Square Systems are designed for use with four monoband vertical antennas placed at the corners of a square that is one-quarter wavelength on a side. The vertical element must be ungrounded and resonant in the desired band, and should be directly base-fed by the coaxial cable phasing lines from the centrally located controller (shunt-fed towers or radiating elements cannot be used). DX Engineering has several vertical antennas that are well suited for this application. Above all, a properly designed and installed radial system is necessary for top antenna performance, whether it's a single vertical or a full array. DX Engineering strongly recommends our optional Q75- series quarter wavelength cables constructed from our own high quality DXE-11U coax. It features a waterproof PE jacket, foam dielectric and has a velocity factor of 82 percent. These cables are electronically pruned to a precise electrical length derived from your choice of center operating frequency, terminated with hand-soldered silver-PTFE PL-259 connectors and weather-sealed with shrinkable tubing. Finally, each cable is tested for high voltage breakdown for maximum reliability and power handling. Since the transmit power is divided by the controller, the coaxial cable can handle QRO power with ease. If you already have a four-square array with a hybrid controller and would like to upgrade to improved performance and the Omni feature, the DX Engineering TFS4 Series B Transmit Four Square Systems are a direct transplant. BCD logic switching allows for the use of a 4-wire control cable to perform the necessary switching functions when powered by the included control console. Features: * Classic hybrid design is easy to install * Four directions plus Omni for versatile operation * 5 kW CW power rating for high reliability * Hot switching lock-out to disable amplifier while switching * Drop-in replacement for COMTEK systems * Proven DX Engineering RF relays for high performance * RF Shielded, high impact thermoplastic cover offers unique protection * Relays cycle during Power-On to ensure clean contacts Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Four-square systems work great! DX Engineering TFS4 Series B Transmit Four-Square Systems provide the heart of a modern phased array.
Not Yet Reviewed
$807.98
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$831.98
Astron Rack Mounted Linear Power Supplies
If you're looking for a heavy-duty, rugged, reliable, high-quality power supply, then look no further. Astron Rack Mounted Linear Power Supplies are made with care and precision. They're available in a wide variety of outputs with or without meters. Key features include: * Heavy-duty transformer * Solid-state electronically regulated * Fold-back current limiting protects power supply from excessive current and continuous shorted output * Crowbar over voltage protection on all models * Maintains regulation and low ripple at low line input voltage * Heavy-duty heat sink * Chassis mount fuse * Three conductor power cord (NEMA 5-15P to IEC 60320 C13) Astron rack mounted power supplies are packed full of performance for your needs. DX Engineering has the model you're looking for. Performance specification: * Input voltage: 105-125 Vac (220-250 Vac on models ending in "220") * RM Series output voltage: 13.8 Vdc +/- 0.05 volts (internally adjustable: 11-16Vdc) * LSRM Series output voltage: 28.0 Vdc +/- 0.05 volts (internally adjustable 22-32 Vdc) * Ripple less than 5mv peak to peak (full load and low line)
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$779.95
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$947.95
DX Engineering 80 Meter Full Size Quarter Wave Vertical Antennas
DX Engineering 80 Meter Full Size Quarter Wave Vertical Antennas, model DXE-7580FS-VA-1, are high performance 68 ft. antennas that are tunable to operate over segments of the entire 75/80 meter band with an SWR of 1.5:1 or less! These antennas are a breakthrough in full size, quarter wave verticals that offer full performance, but don't cost an arm and a leg. Plus, if your neighbors are the slightest bit touchy, these are the antennas for you. Their slim lines can hide in even a small stand of tall trees. Some have even painted these antennas the color that matches the bark of their surrounding trees! Designed with 6063 corrosion-resistant aluminum tubing and stainless steel hardware, these 80 meter vertical antennas are very durable and attractive. Because of their full size height and tubing size, rope guying is required on these antennas, typically at two levels. They include the DX Engineering standard stainless steel Tilt Base to allow you to walk the antenna up or down with only a few helpers on the rope guys. These inexpensive 80 meter verticals are ideal for phased arrays! DX Engineering 80 Meter Full Size Quarter Wave Vertical Antennas have a bandwidth that is outstanding—up to 528 kHz under 2:1, depending on your radial field. Your internal tuner can get the SWR down to 1:1 on any DX frequency for maximum power transfer and full performance! Of course, another key to performance is a good ground radial system; we recommend 32 radials, 65 ft. long. Fewer radials will work, but with diminished results. DX Engineering 80 Meter Full Size Quarter Wave Vertical Antennas feature: -- 5 kW SSB and CW rating—unparalleled reliability -- High power handling capacity--high strength, UV-protected EXTREN® insulators -- Ultra-wide SWR bandwidth and unbeaten gain -- Highest wind ratings—Up to 100 mph with proper rope guying --High strength 6063/6061 tubing manufactured to DX Engineering specifications -- Easy tilt up and down— exclusive antenna mount features DX Engineering's patented Tilt Base, *U.S. Patent Number 7,432,875 -- No rust --100 percent stainless steel tubing clamps and hardware -- Reliability second to none--specially manufactured stainless and aluminum saddle clamps, stainless bolts, and precision machining on each antenna Note: For additional information, please look at the files under the "Documentation" tab. Make plans to install your DX Engineering 80 Meter Full Size Quarter Wave Vertical Antennas and join in the fun of having the best possible signal on the 75 and 80 meter bands with a great antenna!
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$899.98
DX Engineering PS-3B PRO-STACK Three Antenna Phasing Units
DX Engineering PS-3B PRO-STACK Three Antenna Phasing Units offer the ultimate performance for combining three identical Yagi or Log Periodic directional antennas and may be used for vertical antennas in a phased array that cover any band, from 160 through 10 meters. Pro-Stack frequency independent broadband phasing devices operate optimally with three properly spaced mono-band antennas, but can be used with three identical stacked multi-band beam antennas, for pattern and null steering that wins contests and snags the rarest DX! Signals arrive at your antenna system from different azimuth directions and different elevation angles. Adding a stacking phasing system to a rotational array adds the ability to steer the pattern of the antenna array in two planes, azimuth and elevation, and to move the major lobe and nulls. The greatest advantage of Pro-Stack arrays is the ability to move harmful pattern nulls away from signal arrival angles. While gain makes a marginal improvement, moving a 20 to 40 dB null can be a phenomenal change, so the Pro-Stack can make the difference between a barely readable and a strong signal, providing the performance edge needed to work rare DX - and win contests. DXE-PS-3B Pro-Stack Phasing Units are 50 ohm relay systems that handle up to 5 kW. A separate user-supplied automated controller or the optional DX Engineering DXE-EC-PS3 Control Console for these 12-position rotary switch selections: - Three antenna ports in phase, default with no power to control console. - Antenna port 1 only - Antenna port 2 only - Antenna port 3 only - Port 2 out of phase, Port 3 in phase - Port 1 out of phase, Port 3 in phase - Port 1 out of phase, Port 2 in phase - Ports 2 and 3 in phase - Ports 1 and 3 in phase - Ports 1 and 2 in phase - Ports 1 and 2 in phase, Port 3 out of phase - Ports 1 and 3 in phase, Port 2 out of phase - Port 1 out of phase, Ports 2 and 3 in phase These PRO-STACK units may also be used for other applications requiring these feedline selections. To ensure lowest SWR, impedance matching automatically changes when any antenna is disabled. By switching between antennas at different heights above ground and/or changing the phase relationship between multiple antennas. The old standard system in stacks was to activate or disable specific antennas in the stack to change pattern. However, with the Pro-Stack system, gain remains higher when all antennas are driven and phase is changed, plus this system allows phase inversion as well as the ability to switch any single antenna out of the array. DXE-PS-3B Broadband Phasing Units provide the greatest flexibility for three identical antennas. This relay unit contains a broad-bandwidth high-power 2:1 impedance matching transformer. This eliminates common requirements of using mixtures of 75 ohm and 50 ohm phasing or delay cables for impedance matching. Feedlines to each antenna from the relay unit must be the same cable of the same length and match the antenna impedance. DXE-PS-3B Pro-Stack Broadband Three Antenna Phasing Units feature: - Power Handling up to 5 kW - Broad band coverage on 160-10 meters - RF Shielded Weatherproof Housing - unique protection - DXE-PS-3B has High-RF tolerant, silver - PTFE UHF connectors - DXE-PS-3BDIN has Amphenol Connex 7/16 DIN Panel Connectors - DXE-PS-3BN-P are made with high-quality silver-PTFE Type N female connectors - Proven high current DX Engineering RF Relays - Safe 12 volt dc relay operation - MOV surge protection on control lines - RoHS compliant assembly Get a DX Engineering PS-3B PRO-STACK Three Antenna Phasing System for your winning antenna array.
Not Yet Reviewed
$895.99
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$999.99
DX Engineering PRO-STACK Broadband Antenna Phasing Systems
DX Engineering PRO-STACK Broadband Antenna Phasing Systems are designed to combine two identical Yagi or log periodic beams, or three quarter-wave vertical antennas, into a phased array for enhanced directional pattern selections and dramatically improved HF operations. There is no need for special coaxial delay lines with the DX Engineering PRO-STACK systems. Just connect your antennas to the system relay unit with equal-length 50-ohm coaxial cable assemblies. The PRO-STACK switch relay units are available with high-quality PTFE-silver plated SO-239, UHF female connectors. The matching PRO-STACK Control Console operates the system with a 1-of-3 source voltage control format at 12-15V DC with a user supplied four conductor control cable to achieve four different antenna phasing selections. PRO-STACK Broadband Antenna Phasing Systems operate across the 160 to 10 meter range. They have two antenna ports that can be used for any application requiring the four basic selections: 1. BIP - Both antenna ports In-Phase 2. BOP - Both antenna ports Out-of-Phase 3. BOTTOM - Antenna port 1 only 4. TOP - Antenna port 2 only. The unpowered default is 1 - Both ports In-Phase. Impedance matching is automatic in the PRO-STACK even when any antenna port is disconnected. Generally, stacked Yagi antennas are separated vertically with greater than one half wavelength free space. Since the DX Engineering PRO-STACK Antenna Phasing Systems are broadband, they may be easily adapted to larger arrays. For example, four stacked Yagis may be combined by creating two sets of PRO-STACKS, with a third DX Engineering PRO-STACK to combine the first two. PRO-STACK systems may also be used to feed quarter-wave resonant vertical antennas for a high-gain, 4-pattern array. This arrangement requires three verticals, with the center #2 passive antenna element directly grounded to the system ground radial system at all times, while elements #1 and #3 are then fed in various phase relationships by the PRO-STACK. Details are in the complete PRO-STACK PS-2B Instruction Manual linked here in "Documentation" tab. The full- color printed manual is included with the system relay unit. PRO-STACK Broadband Antenna Phasing Systems are available as separate Relay Units for operators who have automated BCD switching devices, and as packaged systems with Relay Unit and matching manual Control Console. Features of the DX Engineering PRO-STACK Broadband Antenna Phasing Systems include: * Power handling up to 5 kW * Broadband coverage on 160-10 meters * High impact shielded weatherproof housing * High-RF tolerant, silver-PTFE SO-239 (UHF female) connectors * Proven DX Engineering RF relays for high performance * Safe 12V relay operation * DC-powered control console allows battery or solar emergency operation * MOV surge protection on control lines * External, removable control line connector * RoHS-compliant assembly Dominate the airwaves with DX Engineering PRO-STACK Broadband Antenna Phasing Systems. * Important Note regarding DX Engineering Protection Plans and Kit Combo Contents NOTE: Protection plans cannot be purchased for combination packages or on applicable devices after shipment. DX Engineering Combination Kits and Packages are designed to help you easily visualize and order the right items for your specific needs. However, we encourage you to contact our experienced Technical Sales Team for assistance. We can help adjust the kit contents, suggest substitutions based on stock availability, and offer DXE Protection Plans for radios and devices when applicable. Contact us for Expert assistance and make informed purchasing decisions with our guidance.
Not Yet Reviewed
$895.98
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$935.99
DX Engineering TW Antenna 80 Meter Solo Explorer Packages
Preserving and building upon the legacy of this premier portable HF antenna line, DX Engineering is now the manufacturer 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 antenna line formerly known as Transworld. DX Engineering TW Antenna 80 Meter Solo Explorer Packages include everything you need to go portable! The package is comprised of the basic antenna structure, an expanded band box to contain the large 80 meter matching coils and an antenna stand. You supply the coax and your own powered transceiver. It's a great antenna for portable Low-Band QRP! Naturally stealthy, these compact HF vertical-dipole TW antennas feature a black powder-coat finish that is excellent for antenna use in HOAs. Use them where "CC & R" antenna restrictions preclude the installation of towers or 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 antenna stand and operate! No radials are needed with these 80-meter vertical dipoles! Ideal for portable use, the lightweight Quadrastand, DXE-TW-AQ, lets you set up your DX Engineering HF Portable TW Antenna wherever you happen to be. Think about special operating events like Scouts Jamboree On-The-Air (JOTA), Field Day or even SOTA (Summits On-The-Air). For general camping and travel, a convenient and durable carrying case, DXE-TW-DXBAG, is OPTIONALLY available to make transporting these antennas in your car or RV a snap! 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 antenna available. Note: Although a permanently-installed mount is available, DX Engineering TW Antenna band boxes are not waterproof. Do not leave your TW Antenna exposed to the elements. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering TW Antenna 80 Meter Solo Explorer Packages 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.
Not Yet Reviewed
$898.96