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Ciro Mazzoni Automatic Magnetic Loop Antennas
Ciro Mazzoni Automatic Magnetic Loop Antennas are ideal stealth HOA and small-space loop antennas. They provide exciting new capabilities to limited space operations with unparalleled reliability and dramatically higher power handling compared to other transmitting loops. These are considered to be the best small transmitting loops available in the world! They are constructed with tough, attractive, aircraft grade aluminum. In spite of their compact size, these antennas automatically adjust to resonance throughout a wide band range: the MIDI Loop tunes 80 through 20 meters, the BABY tunes 40 through 10 meters... without any coverage gap! Now, THE STEALTH LOOP adds even more versatility for the Amateur who is shackled by antenna restrictions. Use it on the ground or on a table! Click on the STEALTH below for More Details! For each LOOP Antenna, MIDI, BABY and THE STEALTH LOOP, frequency information is directly transferred from your radio (ICOM, Elecraft, Kenwood, and Yaesu) to the included ATU 2.0 Controller, by RS-232 or Interface Cable. The Loop Antenna tunes automatically to the radio frequency or manual tuning is available with the ATU 2.0 USB Keypad, also included. If you need a very-high quality antenna that is concealable and operates at respectable power over a wide frequency range, then Ciro Mazzoni Automatic Magnetic Loop Antennas are a great choice!
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Ciro Mazzoni Loop Antenna Replacement Parts
Ciro Mazzoni Loop Antenna Replacement Parts are stocked for those who need to update or reinstall their Loop Antenna by I3VHF. Parts are all original; exactly the same supplied with each model, MIDI, BABY and STEALTH models, including Actuator motors and Isolator Arms. The updated, current model ATU 2.0 replacement (MZZ-COM1001) is the same as supplied with all three new antennas. So are the Universal AC Power Supply (MZZ-COM1002) and the USB Keyboard (MZZ-COM1003). The Stainless Steel Mast Clamp and hardware (MZZ-COM1005) fit the MIDI or the BABY Loops. The MZZ-BLA1010 aluminum adapter plate is supplied with BABY Loop Tripods, available here as a replacement. Order Loop Antenna by I3VHF Replacement Parts here at DX Engineering.
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DX Engineering Rope Hardware Kits
DX Engineering Rope Hardware Kits are exactly what you need for all kinds of antenna projects that use support rope. Designed especially for use in conjunction with Mastrant Antenna Support Rope, these rope hardware kits provide just the right size pulleys, shackles, rope clips, duplex clips, carabiners, thimbles and quick links to facilitate fast and easy rigging, raising and lowering of wire antennas and guying of vertical antennas and antenna supports. They're great for experimenters, SWLs and Radio Amateurs who need to frequently adjust or "tinker" with their antennas. When used with new wire antenna installations, these products and Mastrant Antenna Support Rope allow for easy trimming or retuning of mono and multiband dipoles, end-feds, slopers and all types of wire antennas. Just lower, trim, and raise your antenna again until it's just right. For vertical antennas and support masts, use these kits for an installation that can be adjusted and disconnected easily, without having to constantly re-tie knots and deal with tangled excess rope. These kits feature stainless steel and metal-alloy parts for excellent durability and weather resistance. They will last a very long time. Are you raising a wire or vertical antenna or mast, or are using support rope on another project where strength and convenience are equally important? Consider using Rope Hardware Kits from DX Engineering for a professional looking project that really is stronger and is SO much easier to work on!
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DX Engineering Feedpoint Connectors
DX Engineering Feedpoint Connectors provide a direct transition from coaxial cable to feedpoint for Yagi, Loop Fed Arrays (LFA), Rotatable Dipoles and other antennas that do not have a coaxial connector. Three Feedpoint Connector types are available; SO-239 UHF Female, Type-N Female and 7-16 DIN Female. Each Feedpoint Connector (FPC) features silver-soldered solid tinned-copper 12 AWG wire leads to the connector, which is epoxy potted into a plastic housing, 1.573 inch square and 0.787 inch deep, for a weather-sealed direct feedpoint connection. Of course, additional weatherproofing should be applied to the male to female connector junction, as is typically suggested. DX Engineering Feedpoint Connectors' two wire leads are about 4 in. each, for connection to balanced driven elements of beams and rotatable dipoles on which a coaxial connector does not exist. A longer length of wire is easily soldered to these tinned wires, if required, but increasing connection spacing drives up feedpoint impedance and increases the possibility of mismatch. FPCs are ideal for antennas, especially phased antenna pairs or multiples, on which a coaxial cable ferrite RF bead choke is required at the feedpoint, in place of a traditional enclosed balun. DXE-FPC units do not have mounting clamps, straps or holes. They are intended to be supported by the coax cable attachment to the boom or mast and by the connections to the antenna. An appropriate center insulator kit, such as the DXE-UWA-KIT and coaxial cable strain relief, DXE-CSR213-1, can accommodate the use of Feedpoint Connectors SO-239 UHF Female, Type-N and 7-16DIN for specialized and high power wire antennas, also accommodating a ferrite RF Bead Choke on the RG-213U size coax cable, 0.405 in. diameter.
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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.
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DX Engineering Feedpoint Wire and Connector Assemblies
DX Engineering Feedpoint Wire and Connector Assemblies provide a new and unique method of feeding an antenna radiating element. A ring terminal with a 1/4 in. hole is crimped and soldered to a 12 in. long insulated 14 AWG stranded copper wire, complete with weather-protective heat shrink tubing. Then, these feed point wires are terminated to the center pin of an N-type male or UHF male PL-259 with special insulating sleeves and weather-sealing heat shrink. These assemblies are intended to be used with a double female bulkhead connector, mounted into the Radial Plate, for use on an HF vertical antenna, for example. This wire and connector combination allows for the complete weather sealing of a single wire feed point, while properly terminating the feedline shield to the radial system or ground point of the antenna system. Especially useful for phased vertical installations, the DX Engineering Feedpoint Wire and Connector Assemblies are ready for your special antenna projects!
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4O3A 8xAB Antenna Switches
4O3A 8xAB Antenna Switches integrate eight independent A/B switches into a single compact unit, enabling seamless switching between multiple antennas and radios. When paired with two 403A Antenna Genius switches (O3A-40-AG8X2 or O3A-40-AG8X2-N), it forms a powerful 8×4 antenna matrix, allowing up to eight antennas to be routed to four radios with exceptional isolation. Built with the needs of high-power stations in mind, the 8xAB Switch delivers robust performance, intuitive operation, and a clean, maintainable installation. The primary motivation behind the 8xAB switch is the integration of two Antenna Genius smart switches into an 8×4 Super Switch.
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$737.19
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DX Engineering Replacement TW Antenna Structures
DX Engineering Replacement TW Antenna Structures are direct-replacement structures for the top (DXE-TW-BAS-TOP) or bottom (DXE-TW-BAS-BTM) of your DX Engineering TW Adventurer, Explorer, Globetrotter or Solo Explorer compact vertical dipole antennas. No one ever wants their antennas damaged, but accidents do happen; especially with antennas as portable as these TW Series antennas. Made of high-quality black powder-coated aluminum, these replacement parts are also compatible with older TW portable or stealth antennas. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. If you have need of a replacement top or bottom section of your TW antenna, order DX Engineering Replacement TW Antenna Structures and get your TW antenna back in great shape! 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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Larsen Mobile Antenna Replacement Parts
Larsen Mobile Antenna Replacement Parts will help you keep your Larsen antenna in great shape. Manufactured to high Larsen standards, they are OEM-quality direct replacements. When you need a replacement part for your Larsen antenna or mount, be sure to use genuine Larsen Mobile Antenna Replacement Parts from DX Engineering!
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DX Engineering Receive Filters
DX Engineering Receive Filters are available individually for use in the NCC-2, RPA-2, RTR-2 or DMC-2 with adapter boards. These filters are also available in sets with mounting fixtures for use in the NCC-1. DX Engineering Receive Filters are numbered for the key Amateur Band on which they function. The Band Pass filter models pass RF only on the numbered band, the High Pass models function on that band and all device frequencies above, and the Low Pass models work on that band and all device frequencies below. Response plots for Receive Filters are conveniently listed on a single page in this product's detail web page tab labeled "Charts and Guides". Some users will want to use a pair of these filters with two of the required DXE-RXFL-1 Filter Adapter Boards in their NCC-2. Each individual filter used requires a DXE-RXFL-1 Single Filter Adapter Board to convert them for installation in DX Engineering device models DXE-NCC-2, DXE-RPA-2, DXE-RTR-2 or DXE-DMC-2. All of the RXFL filters are still available in paired sets including two filters and one filter mounting fixture for owners of the legacy NCC-1 unit. See the Receive Filter Sets in combo packages by entering NCC-1 into the search box above.
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DX Engineering Active Receive Vertical Replacement Tubing
DX Engineering Active Receive Vertical Replacement Tubing, model DXE-ARAV-A, is provided for those who might need to replace damaged or lost aluminum tubing for their current model DXE-ARAV4 series Active Receive Vertical antenna. This is NOT the Retrofit Kit. For the conversion of older Active Receive Verticals, see the DXE-ARAV-R which includes a new mounting plate and tubing element. This DXE-ARAV-A kit contains the three 36 in. aluminum sections, 1/4, 3/8 and 1/2 inch, as well as a complete set of new stainless steel element hardware. The required Allen wrenches are also included. The assembled length of this replacement element is 8 feet 6 inches, the same as the original. Refer to the original manual for the DXE-ARAV4-1P, -2P, -4P and -8P for assembly details. The manual is linked at the documentation section at the parts detail web pages.
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$79.99
$55.99
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DX Engineering Bead Choke Standoff Kits
DX Engineering Bead Choke Standoff Kits bring a practical solution to a serious problem when ferrite chokes are placed directly onto the metal boom at the feedpoint of beam antennas. A number of Amateur Radio operators and antenna engineers have known for years about the superior choking function of many ferrite toroids beads placed directly on the coaxial cable, as compared to standard feedpoint baluns. A more recent revelation is that the proximity of ferrite beads on coax taped to the aluminum boom of the antenna drastically reduces their effectiveness. DX Engineering Bead Choke Standoff Kits are mounting systems, made of fiberglass or acetyl standoff rods (color varies), PVC carriers and stainless steel hardware, available in four versions. Two sizes of PVC cradle tubes handle two different types of RF bead chokes; 3/4 inch outside diameter (OD) ferrite beads on RG-400 size cable, and 1 inch OD ferrite beads on RG-213 size 0.405 in. coax cable. Each are offered with two different boom size clamps, 2 inch OD and 3 inch OD. Bead Choke Standoff Kits simply hold an RF bead choke and feedline 4 inches away from the metal beam antenna boom (or 4 inches away from the metal mast for a dipole). They maintain the optimal choking performance of ferrite beads on coax. Using DX Engineering Bead Choke Standoff Kits, ferrite bead chokes function at peak performance for these key results: • Prevent feedline radiation of RF • Preserve current balance for proper beam antenna pattern • Prevent feedline shield exterior collected noise and signals from entering the antenna and interior of the feedline, resulting in lower noise floor and enhanced reception The absolute superiority of RF chokes made of many beads on the feedline, over the traditional enclosure balun, is becoming better understood in Amateur Radio. They achieve the best possible RF isolation of the feedline from the antenna and provide completely balanced currents at the feedpoint. Plus, they provide quieter reception with reduction of common-mode noise. Keeping Bead RF Chokes away from metal preserves the optimal function of this method of antenna feedpoint current balance and isolation. This mechanical requirement is simple and practical with DX Engineering Bead Choke Standoff Kits.
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Hamplus AS-603ALS Desktop Automatic Switch for Six Antennas and Three Radios
Hamplus AS-603ALS is a high-performance desktop automatic switch designed to connect up to six antennas to three transceivers, offering seamless integration for complex amateur radio setups. It features two independent internal relays—one for antenna selection and one for radio selection—allowing flexible and intelligent switching. Key Features: -- Manual and Automatic Operation: Illuminated pushbuttons allow manual selection of antennas and radios. Automatic switching is enabled via band/frequency data from compatible transceivers. --Transceiver Compatibility: Elecraft, Icom (CI-V), Kenwood, Yaesu, and FlexRadio transceivers using optional interface cables. --Amplifier Integration: Two rear-panel SO-239 RF connectors route the selected radio's output through a shared linear amplifier. Amplifier keying is managed via three RCA inputs and a single relay output. --Memory Function: Automatically recalls the last antenna used for each band or frequency when the transceiver changes bands. --Remote Control: RS-232 serial communication with PC and downloadable software. Specifications: - Dimensions (WHD): 13.00 × 3.15 × 5.91 in (330 × 80 × 150 mm) - Power Requirement: 13.8 V DC, 140 mA - Maximum Power Handling: Up to 3000 Watts SSB PEP (with antenna SWR < 1.5:1) - Frequency Range: 1.8 to 148 MHz - Insertion Loss: < 0.2 dB - RF Port Isolation: 72 dB @ 30 MHz; 58 dB @ 50 MHz
Not Yet Reviewed
$575.99
$489.59
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Open Box
Hamplus HR-100L Rotator Controller with PC Interface
The Hamplus HR-100L Rotator Controller was developed to offer an inexpensive solution for manual and PC control of all models of rotators that use a 24 volt DC motor and a position indicating potentiometer. It is specifically designed to connect to any existing Yaesu rotator and control cable. This compact desktop unit features a black front panel with four illuminated directional memory buttons, a red three-digit LCD display to indicate rotator azimuth, an azimuth selection encoder knob, two buttons for CW and CCW advance, a special +180° button for an easy Long Path selection, two LEDs to indicate the ends of rotation and one LED in the LCD to indicate overlap. The HR-100L also has an RS-232 Serial port for PC control with any third party software, such as rig control and logging software, which supports the Yaesu protocol for rotators. A rear panel switch selects either 120VAC or 240VAC input voltage and the Yaesu style 6-pin connector is ready for the control cable to any Yaesu or 24VDC rotator, including G-450DC, G-800DXA, G-1000DXA and G-2800DXA, as well as other brands that use a similar configuration. With dimensions (WHD) of 12.2 x 5.9 x 13.0 in (310 x 150 x 330mm), the Hamplus HR-100L Rotator Controller is simple to set up and amazingly easy to use with your rotator! DX Engineering Yaesu Rotator Cable Assemblies are directly compatible, premade in lengths of 10, 50, 75, 100, 125, 150, 200 and 250 ft.
Not Yet Reviewed
$483.99
$411.39
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Hamplus Antenna Control Switching Devices
Hamplus Antenna Control Switching Devices include automatic band data controlled remote antenna switching systems including full web remote capability without a PC. Hamplus automates HF + 50 MHz switching for 8 to 16 antennas and from 2 to 8 radios, including devices to connect multiple directional controllers to as many as 8 different antenna rotators. Band-data and frequency reading, multi-function control consoles include support for all major brand transceivers with radio specific control cables. Hamplus also offers manual multi-port to multi-radio antenna switches and a four-stack antenna switching system. Years of Amateur Radio and professional experience shows in these components for emerging and elite DXers as well as established multi-radio contest stations. Hamplus products will improve the function and performance of your station. Click on each part number for specific descriptions, specifications, more information and links to compatible or required products.
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Hi-Z Antennas Array Phase Combiner Units
Hi-Z Antennas Array Phase Combiners are the component at the center of a Hi-Z array, and are also known as "relay units" or "phase controllers." The sophisticated RF phasing and switching electronic devices have connections for the receive short element active vertical feedlines, delay lines, and the main feedline that goes to the station. Control cable connections are to power and steer the array pattern, with the station end connecting to the directional control console. Hi-Z Antennas Phase Controllers are now available to be purchased separately to assemble a high-performance receiving array.
Not Yet Reviewed
$325.00
$243.75
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DX Engineering DXE-MBVE-5A60MCK 60 Meter Monoband Conversion Kits
DX Engineering DXE-MBVE-5A60MCK 60 Meter Monoband Conversion Kits are custom made to modify DXE-MBVE-5A Multi-Band Vertical Antennas into 60 Meter mono-band vertical antennas. By accomplishing this conversion, the antenna will operate with peak performance on the 60 meter band. When properly tuned, the SWR should be under 1.5:1 across the entire 60 Meter band. At this point in time, there are Five Channels (USB mode) used on 60 Meters: Channel 1: 5330.5 kHz, Channel 2: 5346.5 kHz, Channel 3: 5357.0 kHz, Channel 4: 5371.5 kHz and Channel 5: 5403.5 kHz. CW and digital modes are also useable. There are actually three kit packages available to assemble a DX Engineering 60 meter mono-band antenna. They are: DXE-MBVE-5A60MCK, the element conversion kit, only; DXE-VE-60-2P: an antenna kit with most of the required parts, and the DXE-VE-60-2P-RAD, a complete kit with all required parts included. Please review all part numbers on our web site to choose your best method of raising a 60 meter mono-bander. If you already have a DXE-MBVE-5A series antenna installed and you wish to convert it, all you will need is our DXE-MBVE-5A60MCK Monoband Conversion Kit plus the following: One COM-BAL-11150T COMTEK 1:1 Balun; one DXE-UN-BRKT-5A mounting bracket for the COMTEK balun, and one container of JTL-12555 or JTL-12502 Jet-Lube SS-30 Anti-Seize. We suggest the use of anti-seize because it ensures good electrical and RF connection for aluminum element sections. It is also used on the threads of stainless steel hardware to prevent galling (seizing) and aid in proper tightening. Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. DX Engineering has been asked to provide a high-efficiency, robust and attractive 60 meter vertical-antenna solution. Here it is! Order your DX Engineering DXE-MBVE-5A60MCK 60 Meter Monoband Conversion Kits (or other kit package) and get on 60 meters with the great signal you desire!
Not Yet Reviewed
$49.99
$37.49
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EAntenna Single Band Dipole
The EAntenna EA60JR Dipole is designed as a mono-band antenna for 60 meter, which also functions on the 15 meter band. It has an overall length of 16 meters (52.5 ft.) when installed as an Inverted-V; and a bandwidth over 100 kHz of 60 meters and over 500 KHz on 15 meters with a minimum SWR of 1.1:1 at 5330 kHz when installed at 10 meters (33 ft.) above ground. Maximum power is 1.5 kW continuous. Adjust the EAntenna EA60JR Dipole antenna resonance by 50 kHz with a 5 cm (2 in.) cut on each end of the dipole. All our antennas are computer designed and optimized, based on NEC2 and NEC4 engine. Each model is tested for reliability before it is marketed, to ensure optimum antenna performance for each customer installation. Antennas are measured to the millimeter with precision equipment. Baluns are manufactured in aeronautical-grade 6082 T5 aluminum. The Amphenol SO-239 UHF female connector is manufactured with the best materials, including ceramic dielectric for high power handling. The dipole antennas feature the best HF wire available, Flex Weave, 2mm 2 (AWG 14), terminated to a polyamide insulator capable of use within the extreme temperature range (-90 degrees to +70 ° degrees C). EAntenna are hand-made by qualified personnel for a final product of extreme quality. The advantages of EAntenna dipoles are: * Broad bandwidth compared to other brands * Very flexible wire, excellent for permanent and portable operation without deterioration * Non-directional (like an inverted V) * Great for DX! All this makes the installed EAntenna, your final antenna. A description of assembly is available inside the package, and answers to questions are available before the purchase directly from the manufacturer by email (ea7jx@eantenna.es). Excellent after-sales service and timely assistance are offered by email, as well.
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DX Engineering Boom Element Plates
DX Engineering Boom Element Plates are used to build long-boom monoband directional antennas for the standard bands, 20 through 6 meters. They are made from a very strong 3/8 in. thick insulating material, each predrilled for specific DX Engineering saddle clamps and sized dependent upon band and element type, driven or parasitic. They accommodate the mounting of aluminum antenna elements to a 3-inch boom for special beam antenna kits. This series of insulated plates have no hardware; they are component parts used in the DXE-EBB Element to Boom Bracket Kits which include one plate and the appropriate sizes and number of saddle clamps, depending upon band and element type. DX Engineering Antenna Element Tubing Kits, Element to Boom Bracket Kits, and Antenna Boom Tubing Kits are each sold separately.
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$139.99
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$111.99
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Low Band Systems HF Transmit Band Pass Filters
NOTICE: Due to materials supply and logistical issues, resupply of Low Band Systems products will be delayed for an indefinite period. Low Band Systems HF Transmit Band Pass Filters are very high quality multi-stage devices designed to specifically limit the RF band pass to a single Amateur band. They eliminate image and harmonic RF interference issues for dedicated mono-band operations in multi-radio contesting environments. Required for use with transmit multiplexers, these passive filters provide the additional isolation needed to allow multiple transceivers to be operated on different bands simultaneously on the same antenna. Used individually on mono-band radio and antenna combinations, these filters provide the isolation required in multi-radio contest stations. Low Band Systems band pass filters are available for each of the ten HF Amateur Bands in 200, 500 and 1,500 watt models, and 2,000 watt models for the main contesting bands of 160, 80, 40, 20 ,15 and 10 meters. Their unique aluminum enclosures, some with fans, are laser cut with "Perfo-Box" on the side and their power handling and band of operation are stenciled chassis cutouts in European nomenclature, such as "3,5 MHz" for the 80 meter filter, for example. Their permanent demarcation allows immediate identification, preventing any future trouble with faded or missing printed labels. Supplied only with standard UHF Female/SO-239 connectors, these HF Transmit Band Pass Filters achieve over 60 dB of out-of-band suppression that virtually eliminates out of band noise and interfering signals. They are designed to provide a sharp roll off just outside each Amateur band; just below 3.5 MHz and just above 4.0 MHz for the 80 meter filter for example. Low Band Systems filters are the first choice of major multi-multi contest stations around the world! They provide the clear benefit of a dramatically lower noise floor for enhanced single-band weak signal reception desired for elite contest and Field Day operations. Low Band Systems Band Pass Filters are used in conjunction with their multiplexers, also known as multi-band transmit combiners. Low Band Systems Diplexers, Triplexers, Quadplexers and Pentaplexers, also available from DX Engineering, provide good levels of isolation between band ports, but band pass filters are also needed for multi- transmitter operation. This is because the multiplexer's main purpose is to balance the impedances for the multiple-transceiver/single multi-band antenna stations. They provide UHF Female/SO-239 connections for multiple 50-ohm transceivers to be connected to a single 50-ohm feedline. So, band pass filters are REQUIRED for each multiplexer band input to provide the additional isolation required to allow multiple transceiver setups to work. The transceivers for each band are connected to their associated band pass filter, and then to the multiplex device such as a triplexer, which is connected to a tri-band beam, for example. All transceivers can operate simultaneously with up to 80 dB of isolation, unhindered by the signals from the other connected radios operating on the other bands on the same antenna! Achieve the advanced operational advantages that these exceptional filters and multiplexers provide. Order Low Band Systems HF Transmit Band Pass Filters from DX Engineering! NOTE: Filters made for 160 meters are 2.0 MHz low pass models to prevent harmonics on higher bands. They do not reject frequencies below 1.8 MHz. If AM broadcast interference is a problem, an additional BCI filter should be used. After better antennas, these filters are suggested as the most important multi-radio station upgrade by top contest station builders and operators. Low Band Systems HF Transmit Band Pass Filters simply allow more contacts to be made with worldwide DX stations and DXpeditions.
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$359.99
$269.99
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SureFire Radio MIC-7 Multi-Interface Controller
The SureFire Radio MIC-7 Multi-Interface Controller is a phenomenal tool with application features for nearly every Amateur Radio station. It is a complete band decoder, antenna switch controller and remote control gateway contained in a single, attractive package. It supports Icom, Kenwood, Yaesu, Elecraft and Flex radios. From another room or another continent, it provides Internet remote control and computer connections to control a transceiver, a bandpass filter, an antenna switch and more! Here are the major functions of the MIC-7 at a glance: - LCD Display of Frequency, Band, Antenna and Status - Internal Band Decoder - RS-232, CI-V and Band Data interfaces - Internal RS-232 and CI-V to USB interface - Bi-directional band data port - Dual port LAN Ethernet interface – Port A is for Internet control of the MIC-7, Port B is for the Radio Data Stream - Direct USB connection to Flex Radios - Two units may be interconnected for SO2R operation - Automatic antenna lockout for antennas in use by other radio - Completely configurable from front panel (Dual LAN port assignment by web browser) - Dimensions, WHD: 6.7 x 1.4 x 7.6 in. (170.2 x 35.6 x 193.4 mm) - Weight: 1.4 lbs. (0.64 kg) While accomplishing all available remote control functions, this remarkable device simultaneously converts either Icom CI-V to USB, or Yaesu RS-232 CAT to USB, or Kenwood and Elecraft RS-232 COM to USB. The radio band data port is bi-directional, providing conversion of information for virtually unlimited applications with accessories. The MIC-7's USB port may be connected to a USB equipped transceiver for remote rig control and it supports direct connection to modern FlexRadio transceivers. You can easily interface any modern, computer controllable transceiver to a PC desktop or laptop computer AND enjoy the additional functionality of this unit. The MIC-7 features a dual port LAN for remote Internet operations which can simultaneously serve a remote station transceiver as well as control the rear panel 8-contact switching control for antenna or other relay switching tasks, such as a third party bandpass filter. The rear panel RJ11 FireLAN port on both the MIC-7 and the SureFire Radio BF-100 Bandpass Filter System provides direct interface control and DC power. They were made for each other! Like the BF-100, the SureFire Radio MIC-7 is built into an attractive and sleek heavy duty anodized aluminum case with laser engraved panels and high quality connectors. With the MIC-7, a connected transceiver, an antenna switch and a bandpass filter may all be remotely operated via local or Internet LAN connection to your router. Use your station with any Internet access control PC operating generic or transceiver specific remote control software. Here is the link to IP configuration software to use the MIC-7 on a LAN: https://www.netburner.com/download/ip-setup/ Here is the link to drivers for those interested in using a virtual COM port assigned to an IP address and port: https://www.netburner.com/download/virtual-comm-port-driver-windows-xp-10/ Bring the ease of remote operations with radio, antenna switch and bandpass filter automation to your shack with the SureFire Radio MIC-7 Multi-Interface Controller, available exclusively from DX Engineering.
Not Yet Reviewed
$399.99
$279.99
Clearance
COMTEK Stack 2 Yagi Switch Control Consoles
COMTEK Stack 2 Yagi Switch Control Consoles are designed for use with newer or older COMTEK Stack 2 systems. These are the control consoles, only. They include a 2.1mm power cord and operate on 12V DC. Station power, if used, must be 12V DC at 1A minimum (fused). A 3-conductor control line between the control console and relay unit is required. Whether you are replacing a damaged console or building a new system from parts, these COMTEK Stack 2 Yagi Switch Control Consoles from DX Engineering are what your stacking system needs!
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$124.99
$62.50
Clearance
Open Box
4O3A A50 Antenna/Load Switches
4O3A A50 Antenna/Load Switches serve as 50-ohm loads for open ports on the HFC4500 combiner or other multiplexer, preventing tuning degradation. Applying 12V power connects the input to the combiner's output, linking it to the corresponding combiner or filter. A typical setup switches a filter or a combiner to a monoband antenna. When the A50 is not powered, the switch defaults to a 50-ohm termination for the input and the antenna output is open. NOTE: The A50 is NOT an A/B switch. The manufacturer's label of "A/B Switch" is a product grouping, NOT an indication of the function of this product. The LOAD resistor is internal, so one of three connectors is unnecessary, which leaves an open hole in the chassis, a "normal feature" of the A50.
Not Yet Reviewed
$181.99
$136.49