Availability
Antennas
DX Engineering Maxi-Core® 20 Baluns and Feedline Chokes
The present-day DX Engineering was launched in the year 2000. To celebrate our 20th Anniversary in the year 2020 we have developed a new line of Baluns and Feedline Chokes. Introducing DX Engineering "Maxi-Core® 20" Baluns and Feedline Chokes. They reduce or eliminate currents on the outside of your feedline allowing you to hear and to be heard much better. They keep more RFI/BCI out of your antenna and receiver and transfer more of your transmitted signal to the antenna for higher efficiency, the best antenna pattern and maximum performance. Signaling a new era of RF performance across the 1.8 to 54 MHz frequency range, DX Engineering Maxi-Core® 20 Baluns and Feedline Chokes handle full-legal-power-plus and provide higher common mode impedance (CMI) across a greater frequency range than competing models and even previous DX Engineering and Comtek models. Years of R&D coupled with major advancements in test equipment and techniques combined with custom ferrite materials have allowed our engineering team to design the DX Engineering Maxi-Core® 20 Baluns and Feedline Chokes. Maxi-Core® 20 Baluns and Chokes have high CMI across the AM Broadcast band and the HF/6M spectrum, which is essential to provide sufficient suppression of unwanted transmitted and received RFI/BCI current on the feedline shield exterior. Hear and be heard with DXE Maxi-Core® 20 Baluns and Feedline Chokes. Choose superior performance from these models: * DXE-MC20-1-1 Maxi-Core® 20 - 1:1 Current Choke Balun - For all HF-6m balanced antennas with a 50 ohm feedpoint, including resonant dipoles, loops, Yagis, beams, etc. * DXE-MC20-FC Maxi-Core® 20 - 1:1 Feedline Choke – This high CMI line isolator is perfect for use in line on 50 ohm coaxial feedlines, at the antenna, tower or shack end of the feedline. * DXE-MC20-1-1T Maxi-Core® 20 - 1:1 Current Choke Balun – This 1:1 "T" model is for force feeding antennas with a tuner. Use it at the end of ladder line of any impedance or mounted on a coax fed non-resonant antenna. This model tolerates operation at high SWR on non-resonant multi-band antennas. * DXE-MC20-C4-1 Maxi-Core® 20 - 4:1 Current Choke Balun is for use on antennas with a 200 ohm feedpoint and at the end of any impedance ladder line, especially on antenna systems with higher impedance. This model tolerates operation at high SWR on non-resonant multi-band antennas. * DXE-MC20-V4-1 Maxi-Core® 20 - 4:1 Voltage Balun is a 200 ohm to 50 ohm transformer for use on random long-wire and OCF antenna applications. This true voltage balun is intentionally designed with low CMI for antennas that need a transformer without RF choking for easier antenna tuner operation and it tolerates elevated SWR. Maxi-Core® 20 Baluns and Feedline Chokes are built into a convenient weather resistant NEMA enclosure that is mounted easily with optional brackets. They feature 1/4-20 stainless steel hardware and a high quality silver-plated PTFE dielectric SO-239 (UHF female) input connector. The SO-239 connector limits power handling to 5 kW at low SWR and reduced power at elevated SWR. These baluns and the feedline choke exhibit very low insertion loss and inherently low SWR. Optional mounting brackets are available for use on wire antennas or for verticals, Yagi and beam antennas. See the Suggested Parts tab after clicking "More Detail" on the model of interest. Combination packages that include balun or choke and mounting bracket are also available.
( 141 )
$141.99
—
$169.99
Alpha Delta Coax Switches
Alpha Delta Coax Switches have a precision-machined switch shaft and quadrant mechanism for more accurate and stable switching performance. These switches have a low-loss micro-strip cavity design, positive detent switching, master antenna ground function, a front panel removable arc-plug surge protection module, and excellent HF through UHF performance. The unselected antenna ports are grounded for protection and maximum isolation. Alpha Delta Coax Switches are used worldwide in government, military, and commercial applications and are manufactured in Alpha Delta's ISO-9001 certified production facility in the USA. They come available with either a 2-port or 4-port position, and both have the option of either the UHF female (SO-239) or N female connector. These switches are all built into the same heavy-duty chassis that is 5.250 x 3.500 x 1.250 in. (WHD), excluding connectors and knob. Note: When placed in the "COM" position, all switch positions are grounded. When a port is selected, that port is ungrounded while all other ports remain grounded. Additional features include: * Higher strength, lower resistance sliver bearing solder * Durable abrasion resistance with powdercoated finish * Brass arc-plug housing for improved gas tube positioning Note: When available, please look at the files under the "Documentation" tab for additional product information. Coaxial switches have to work every time. Alpha Delta Coax Switches from DX Engineering have the quality and reliability you need!
( 250 )
$119.99
—
$149.99
Spooltenna Parks-EFHW4010 End Fed Half Wave Portable Wire Antennas
Spooltenna Parks-EFHW4010 End Fed Half Wave Portable Wire Antennas are compact, lightweight antennas specifically designed for portable amateur radio operations like POTA SOTA, and Field Day. Its innovative spool form factor is intended to ensure rapid deployment and teardown, providing a frustration-free operating experience that doesn't compromise performance.
( 10 )
$149.00
Par EndFedz® Antennas
Par EndFedz® Antennas are End Fed Half Wave (EFHW) antennas with the match box coax connection at the end of the wire, for convenient and quick stealth portable operations. These single-band and multi-band antennas can be mounted horizontally, vertically, or as a sloper. No ground plane or counterpoise is needed so portable operation could not be easier. Simply hang the far end from a tree limb or send the wire out a hotel room window or balcony. You can use a telescoping fiberglass mast to get the antenna really high in the air and the supplied end insulators the installation easy. Stealth operation in CC&R and HOA antenna restricted locations is simplified. Their all-black construction makes them difficult to see. Each Par EndFedz® features a UV-resistant black ABS plastic housing with a support rope attachment hole that encloses a matching network to allow the antenna to be fed with standard 50 ohm coaxial cable with a PL-259 (UHF male). All hardware is stainless steel and the SO-239 (UHF female) connector is silver plated and has a PTFE dielectric. The antenna wires are either 18 or 26 AWG stranded Copperweld® with 200 pound breaking strength and a tough, 100% UV stable black polyethylene jacket. One end of the antenna wire has a #10 solder lug making attachment to the matching network feedpoint simple and easily replaceable, if necessary. Standard single and multi-band versions handle 100 or 200 watts and higher power versions handle 300 watts. Lightweight QRP PolyStealth models handle 25 watts and are ideal for portable operation because they are lightweight; the MKII model weighs only 8 ounces and the Trail Friendly model weighs only 3.5 oz. Par EndFedz® Antennas require no counterpoise or extra conductors. The EF-ALLBAND-KW model, about 133 ft. in length, covers eight bands, 80 through 10 meters. The ALLBANDKWJR is 74 ft. in length and operates on five bands, 80-10 meters. The 64 ft. EF-40-10-KW operates on four bands. All three models handle up to 1000 watts SSB/CW and 250 watts AM/Digital Modes. The need for an external tuner may vary based on the antenna model selected and the desired operating band. The manufacturer refers to these antennas as "End-Fed Dipoles" based upon the assertion that a "half-wave radiator is a dipole." This is a variant of the classic definition of a dipole which is a center-fed antenna with two radiating legs running in opposite directions from the feed point. Additional claims about the EFHW state that end feeding a half-wave "can energize the radiator 'nearly' as well as a center-fed." Recent anecdotal measurements indicate that the EFHW radiates about 70% as well as a traditional center-fed dipole. More information is available at each Par EndFedz® model listed below. Order yours from DX Engineering.
( 231 )
$154.95
—
$189.95
DX Engineering Receiver Guard Electronic RF Limiters
DX Engineering Receiver Guard RG5000HD Electronic RF Limiters are the best choice of inline devices to protect your receiver antenna inputs. The Receiver Guard is a receive antenna input limiter specifically designed to protect a sensitive receiver front-end against high levels of RF and potential damage. At the heart of each Receiver Guard is a highly effective electronic RF limiter covering 500 kHz to 150 MHz with an insertion loss under 0.15 dB up to 50 MHz and under 0.30 dB up to 150 MHz. The multi-stage design includes a gas discharge tube for maximum pulse energy protection. The DXE-RG5000HD rejects 10 watts of catastrophic receive antenna feedline RF while passing a maximum signal of about 87 dB over S-9, which is only 25 mw, a signal level that is well below the point of front end damage. Receiver Guards are a must for multiple radio contesting stations and they provide low-cost front-end "insurance." Use them in these common high-RF situations: - Receive antennas in very close proximity to transmit antennas - Field-day operations with many transmitters in close range - Multi-transmitter contesting sites - Neighboring Amateur and CB operators - Frequent high-power mobile encounters Extensively tested and proven in real-world stations, the Receiver Guard works for all radios and offers the ultimate performance required by the upper tier of transceivers tested to have the best narrow-spaced third-order dynamic range or published RMDR (Reciprocal Mixing Dynamic Range). These are passive electronic limiters, so competitive contesting stations use separate band filters in addition to the Receiver Guard. When there are high levels of RF on your receive antennas, the DX Engineering Receiver Guard generates far less harmonic noise than other limiters on the market, which allows your station to continue to operate safely and competitively. At normal HF signal levels the RG5000HD operates continuously with no effect on the performance of your station while providing the best possible protection for your radio. Here are key Receiver Guard features: * Keeps stray high levels of RF from damaging your receiver input * Ideal for separate 160 and/or 80 meter receive systems with large pulse and RF energy capture area * Uses state of the art components for maximum protection of receivers * Under 6 ns response time * Multi-Stage protection * Very low insertion loss * Uses BNC type connectors to avoid accidental connection to a transmit feedline * Has been developed and tested in world-recognized multi-multi contest station K3LR Specifications - DX Engineering Receiver Guard model DXE-RG-5000HD - Frequency Range: 0.5 through 150 MHz - Insertion Loss: < 0.15 dB up to 50 MHz, < 0.3 dB 50 MHz up to 150 MHz - VSWR: < 1.2:1 - Maximum Output Level at 10 W input: +14 dBm (0.025 W) - Maximum Power Handling: 10 W CCS (Continuous Commercial Service) - Device Impedance: 50 to 75 ohms, unbalanced - Connectors, Input and Output: BNC female Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. What happens if the receive antenna is extremely close to the transmit antenna, or there is an antenna support or other system failure that causes a high RF level to enter the receive antenna input? A DX Engineering Receiver Guard can save the day! Order yours now.
( 37 )
$119.99
Diamond Antenna X300A Dual-Band Base/Repeater Antennas
Diamond Antenna X300A Dual-Band Base/Repeater Antennas are a great choice where ruggedness is required in a long range, high-gain, dual-band, base/repeater application. Features for these antennas include a heavy-duty fiberglass radome, overlapping outer shells for added strength, wide-band performance, pre-tuned band coverage, DC grounded static protection, stainless steel mounting hardware and radials, waterproof joint couplers, and a UHF (SO-239) cable connection. If you are looking for an antenna with extended pattern, Diamond Antenna X300A Dual-Band Base/Repeater Antennas from DX Engineering give you the extra coverage you need to hit the fringe areas.
( 48 )
$149.99
Comet Tri-Band VHF/UHF Base Vertical Antennas
Comet Tri-Band VHF/UHF Base Vertical Antennas provide great gain figures on several bands. These superior-quality base station antennas feature a heavy duty, UV-stabilized fiberglass radome for many years of reliable service. Offering good power-handling, these base station antennas are ready to handle long QSOs from your high-power VHF/UHF radios. Although light in weight, they incorporate strong, easy-to-use, extruded aluminum and stainless steel clamp-on mounting hardware. When your vertical base antennas require tri-band functionality, great gain figures, and remarkably durable construction, remember that Comet Tri-Band VHF/UHF Base Vertical Antennas provide excellent overall performance!
( 47 )
$249.95
Comet GP-3 Dual-Band VHF/UHF Base Vertical Antennas
Comet GP-3 Dual-Band VHF/UHF Base Vertical Antennas provide very good gain on the 2-meter and 70-centimeter bands. These superior-quality base station antennas feature a one-piece, heavy duty, UV-stabilized fiberglass radome for many years of reliable use. With the highest power rating in their class, these base station antennas are ready to handle long QSOs from your high-power VHF/UHF radios. Although light in weight, they incorporate strong, easy-to-use, extruded aluminum and stainless steel clamp-on mounting hardware. When you need the functionality provided by VHF/UHF base antennas, remember to give Comet GP-3 Dual-Band VHF/UHF Base Vertical Antennas a try!
( 61 )
$119.95
Diamond Antenna D3000N Super Discone Antennas
Diamond Antenna D3000N Super Discone Antennas are ultra-wideband antennas covering amateur radio, commercial 2-way, cellular, air traffic control, public safety, and various utility-frequency bands. Rust-free stainless steel is employed in all major components, making the antenna durable and rust-resistant. The ultra-wideband design permits 25 to 3000 MHz receiving and 50-1200 MHz transmitting. The 6-meter band is tunable for best transmit SWR. The compact and lightweight design enables these antennas to be installed on balcony railings or in tight spaces on towers. They're ideal for transmitting on 2-meters, 220, 70-centimeters, 33-centimeters, and the 23-centimeter amateur bands, so you can pump up to 200 watts into these antennas! Because of the tunable 6-meter loading coil, the power rating on 6-meters is 20 watts FM or 50 watts PEP. These antennas may be made further compact and lightweight by removing the top loading coil if 25-50 MHz operation is not required. Let's face it… these Diamond Antenna D3000N Super Discone Antennas are one of the most versatile antennas on the market!
( 16 )
$159.99
Larsen Mobile Antenna Mounts
Larsen Mobile Antenna Mounts are premium-quality antenna mounts. Larsen also has high performance trunk lip mounts. These mounts are a better solution than drilling holes in your car, especially when your car is leased! Manufactured of quality materials, their trunk lip mounts will last car after car. To assemble your own mount, Larsen offers their TMB Series mounting brackets. These are stainless steel brackets without cable or antenna base. They are perfect for assembling a custom installation. When you need a great antenna mount, trust Larsen Mobile Antenna Mounts from DX Engineering!
( 39 )
$109.19
—
$178.99
REZ Antenna Systems XFORM 4:1 UNUN
The REZ Antenna Systems XFORM 4:1 UNUN is a modular impedance-matching system designed for the Scout system, expanding its capabilities beyond traditional quarter-wave verticals and half-wave dipoles. It integrates seamlessly with the Scout XF base and supports legacy Scout bases via a jumper connection. The XFORM enables over 30 potential antenna deployment options when combined with future 9:1 and 49:1 transformer modules, which are currently in development. Built for durability, the XFORM features CNC-machined 6061 aluminum, an acetal polymer body, and stainless steel hardware. Its gasket-sealed design ensures reliable performance in harsh weather conditions. The unit handles up to 200 watts PEP SSB and 75 watts digital (50% duty cycle) and measures 5.5 inches in length with a maximum diameter of 2.5 inches. Each core is precisely wound and tested for thermal stability and minimal insertion loss, delivering efficient signal transfer and cooler operation underload. The XFORM requires a Scout base for use, making it an essential upgrade for operators seeking maximum versatility and performance in portable HF antenna systems.
( 3 )
$189.95
Spooltenna ULTRA-4010 End Fed Half Wave Portable Wire Antennas
Spooltenna ULTRA-4010 End Fed Half Wave Portable Wire Antennas are a 40-10M end fed half wave antenna in an ultra-compact form that is small enough to fit right into your pocket. Optimized for size and weight without compromising performance, it is ideal for POTA, SOTA, backpacking, and travel. No antenna tuner is required.
( 4 )
$169.00
COMPACtenna 2M/440+ Optimized High Performance Dual-Band Ham Radio Antenna
COMPACtenna 2M/440+ provides high performance using a unique Electric-Magnetic Field Diversity design, Patent No. 9,407,001. Superior Omni-directional coverage is achieved far beyond what would be expected for the antenna size. The multi-faceted geometric design of the antenna includes "extended flat monofilar spiral Tesla-like coils" that serve as the LCR matching system, resonating as an integral part of the signal field generation. No external or internal electronic lossy matching components are used. This design establishes diverse electromagnetic fields resulting in signal stability and performance greater than expected in NLOS (Non-Line-Of-Sight) environments, reducing the effects of ionospheric polarization shifts. COMPACtenna 2M/440+ Specifications: * Frequency Coverage: 144-148 MHz, 430-450 MHz * Power Rating: 100 W 2M; 75 W 70cm * Duty Cycle, Max. Power: 1 minute transmit limit in a 2-minute period * Repeater Operation: 30W maximum at the antenna * Maximum Ambient Temperature: 130 degrees F (hotter conditions, sun exposure, limited air flow reduces duty cycle) * Gain: +5 dB-MEG: Due to diverse EM fields of the Magnetic Field Resonator, performance is greater than predicted by singular polarization field-range tests * SWR, nominal: < 2.1:1 144-148 MHz, 430-450 MHz. Best SWR on VHF frequencies when COMPACtenna 2M/440+ antenna is mounted on an upper corner of a vehicle, NOT center mount. Flat style magnetic mounts provide the best SWR results. SWR varies with size and shape of the vehicle.
( 26 )
$199.00
Alpha Antenna HOA Buster Antenna Matching Units
The Alpha Antenna HOA Buster Matching Unit is an innovative solution for operators seeking a stealthy, tuner-free antenna system in restrictive environments. Designed to transform existing gutters and downspouts into efficient radiators, the HOA Buster covers HF, VHF, UHF, GMRS, and CB frequencies, including 80–10 meters, 2 meters, 70cm, and 900MHz. (gutter and environment dependent). The HOA Buster features an SO-239 RF connector and is rated for up to 250 watts PEP SSB, 125 watts CW, and 25 watts for digital, AM, or FM modes. When connected to conductive metal gutters, downspouts, and a real ground via the included ground spike, the HOA Buster delivers full-band coverage from 80–10 meters. For deployments where gutters or ground connections are unavailable, an optional 60-foot end-fed HF element enables portable operation in locations such as beaches, mountains, or parks.
( 5 )
$249.00
DX Engineering Receive Short Element Active Vertical Antennas
DX Engineering Receive Short Element Active Vertical Antennas (the RSEAV Antennas) offer excellent low noise radio frequency reception from 40 kHz to 30 MHz. Better receiving performance than full-size transmit antennas and other active makes the DXE-RSEAV-1 the best choice on the market for VLF through HF reception, including long-distance AM broadcast, Medium Wave and Shortwave (SWL), and new low-frequency Amateur bands, DXing, contesting, and everyday HF operations. Click on a listed product title and Scroll Down to see additional important information. A complete product description appears below the Specifications Overview. Instruction manual links appear in the Documentation section. The sleek and stealthy DXE-RSEAV-1 includes a high-quality three-section 8.5 ft. (2.6m) aluminum tubing whip, insulated mounting plate and the completely new DXE-AVA-3 Active Matching Unit. Its state-of-the-art broadband operational amplifier design works as a high-impedance buffer between the short antenna element and RG6U 75-ohm coax. When installed in the appropriate location, RSEAV antennas provide significantly better weak signal reception than other active receive antennas and full-size transmit-capable antennas, with substantially reduced noise and lower spurious signal interference. Receive Short Element Active Vertical Antennas are intended to be mounted on a ground rod at ground level in a clear area away from all metal, towers and other antennas. They are sold individually (DXE-RSEAV-1), or with a bias tee (DXE-RSEAV-1FVI) and DXE-RSEAV-1 Receive Short Element Active Verticals set a new standard for "Active Receive Vertical Antennas" replacing legacy DXE-ARAV-3, ARAV-2, ARAV-1 and AL-24 versions. Use multiple DXE-RSEAV-1 for all 4 and 8 element DX Engineering Receive Arrays – all 3, 4 and 8 element Hi-Z Antennas Arrays – and 2 element receive arrays with DXE-NCC-2 and NCC-1 Variable Phasing Controllers. The DXE-RSEAV-1 is designed to be a very low-gain, low-noise antenna for greatly improved signal-to-noise performance over a very wide range of frequencies. In a proper single or multi-element array installation, this Receive Vertical antenna will attenuate high-angle skywave signals, which is the goal for a low band DXing receive antenna. Low-angle, long-range DX signals are easier to copy with a good radio and DX Engineering Receive Short Element Active Vertical Antennas. Please Note: To achieve the expected reception pattern, multi-element phased arrays depend upon identical gain and phase response from each element. Every individual element amplifier, its grounding, and even its feedline characteristics and length, must be identical to the others in the array. Therefore, when unrepairable failures occur, it is essential to replace or upgrade all the elements in the array with identical, fully compatible DXE-RSEAV-1 antennas or DXE-AVA-3 units.
( 3 )
$249.99
Moonraker SkyScan VHF/UHF Receive Antennas
Moonraker SkyScan VHF/UHF Receive Antennas are wideband, omnidirectional discone style antennas that are vertically polarized. The RX frequency range is from 25-2000 MHz and is a good, all-around antenna for scanners and shortwave listening. A 4.921 in. magnetic base is included for stationary portable use on a vehicle and 13.123 ft. of RG-58 coax is installed on the base with a BNC male connector on the receiver end. Additional Features and Specifications: * Antenna Height: 27.559 in. (70cm) Note: Not intended for use on a moving vehicle.
( 23 )
$153.99
COMPACtenna Model 2M/220/440 Tri-Band NMO Mobile Antennas
COMPACtenna Model 2M/220/440 Tri-Band NMO Mobile Antennas COMPACtenna Model 2M/220/440 Tri-Band NMO Mobile Antennas are very small, high performance dual-band antennas. Even though they're only 7.5 inches tall, they provide superior Omni-directional coverage far beyond their size, using a unique Electric-Magnetic Field Diversity patented* design. These are attractive, rugged and weatherproof radome style mobile antennas that will allow vehicle passage into most garages, drive-through lanes and even under low tree branches without having to remove or tilt the antenna structure. COMPACtenna NMO Mobiles are easy to install and use, requiring no tuning. This Tri-band model covers three of the most popular VHF and UHF amateur bands. A typical SWR under 2:1 across the frequency ranges 144-148 MHz, 219-225MHz and 420-450MHz, depending only upon the vehicle mount or base mount position. This antenna handles up to 85W on the 2M band and 50W on 220 MHz and 440 MHz. It also provides excellent wide-band receive coverage from 100-1500 MHz. Its industry standard NMO base is compatible with a number of NMO vehicle magnet mounts, grounded NMO hole-mounts, hatch or trunk lip mounts or angle bracket mounts. The required NMO mount is not included with the antenna, but is available from DX Engineering. The revolutionary COMPACtenna Model 2M/220/440 Tri-Band NMO Mobile Antenna is also configurable as an indoor base or as an inconspicuous, outdoor base antenna by adding an optional CompacCounterpoise. *Patent No. US 9,407,001 – Unique Electric/Magnetic Field Diversity Science & Technology Patented Design
( 31 )
$199.00
Chameleon Antenna CHA-Blank Antenna Mount Adapters
Chameleon Antenna CHA-Blank Antenna Mount Adapters support the CHA-SS58, CHA-SS17, and CHA-SS25 whips, allowing users to select the best configuration for their needs. Whether you need a compact setup or an extended-range solution, these adapters provide flexibility for various HF band applications. The modular design lets operators customize their antenna system based on specific mission requirements and operational conditions.
( 13 )
$132.00
PackTenna EFHW2010 End Fed Half Wave Wire Antennas
PackTenna EFHW2010 End Fed Half Wave Wire Antennas are Compact, lightweight trail-ready portable HF antenna systems optimized for the 20m and 10m bands, with optional 40m support via an add-on wire element. Designed for field use like POTA, SOTA, and backpacking, this antenna system comes with an integrated wire winder, matching transformer, and antenna wire into a single rugged unit that won't take up a lot of space in a backpack.
( 7 )
$115.00
DX Commander Vertical Antenna Replacement Telescoping Masts
DX Commander Vertical Antenna Replacement Telescoping Masts are identical to the telescoping masts that are supplied with each of the DX Commander Vertical Antenna kits. These telescoping masts share the same specifications as the original masts and serve as direct replacements.
( 53 )
$136.00
—
$199.00
Chameleon Antenna FSR Faraday Strip Radial System
The Chameleon Antenna FSR Faraday Strip Radial System gives field operators a compact, MPAS READY radial and counterpoise solution that boosts efficiency, improves safety, and packs easily into any portable setup. At only 3 pounds and stored as two 6x4-inch bundles, the FSR offers significant performance improvements over traditional wire radials without adding bulk or complexity. Each Faraday Strip is built from a multi layer composite structure that pairs a Copper–Nickel–Polyester conductive fabric core—woven in a multidirectional diamond pattern—with durable TAN 900D Oxford outer layers for UV, moisture, and abrasion resistance. Three brass grommets on every strip maintain strong mounting points and consistent electrical continuity across the system.
( 6 )
$130.00
DX Engineering Rotator Top HD Mast Clamps
DX Engineering Rotator Top HD Mast Clamps significantly improve the connection between the rotator and the mast. The mast gripping pressure of these clamps is completely adjustable, by limiting the torque applied to the included clamping fasteners. Available in two sizes, for 2 inch OD and 3 inch OD masts, based on the K7NV design, these are the heavy-duty original equipment mast clamps for the DX Engineering RT4500HD Rotator. The 2 inch OD HD Mast Clamp is also a heavy-duty replacement for M2 Antennas OR2800 Positioners and Yaesu G2800-DXA, G1000-DXA, and G800-DXA Rotators. The 3 inch OD HD Mast Clamp version fits only the DXE-RT4500HD and M2 OR2800. NOTE: When the mast mounted rotatable antenna(s) installed have a wind load or wind exposure rating of a total of 18 square feet or more, the use of a 3 inch OD mast and mast clamp are highly recommended. Each clamp plate has holes drilled for the applicable rotators. Clamping bolts are included with each. Also, rotator clamp mounting bolts are included for DXE, M2 and Yaesu (2in. clamps only). Replacements are sold separately... see "Replacement Parts" on each mast clamp detail page. Rotator Mast Clamping Hardware Includes: 5/16 1.250 in. Stainless Steel bolts 5/16 Nylon Lock Nuts 5/16 Flat Washers 1/4-20 - Clamp Spreading Bolt(s)
( 3 )
$249.99
M2 Antennas HO LOOP Antennas
M2 Antennas HO LOOP Antennas provide easy SSB, CW and Digital communications out to 200 miles or more. These are great VHF and UHF antennas for the new operator just getting started in either mobile or base weak signal operations. HO LOOP Antennas are the right choice for any operator who wants the convenience of omnidirectional coverage, with the correct polarization, without investing in a rotator and support that is required for Yagi antennas. HO LOOPs transmit and receive horizontally polarized signals that are required for weak signal operation, where verticals are not effective. Horizontal polarity permits HO LOOPs to add upwards of 5dB of ground gain that verticals cannot. As with most horizontally polarized antennas, performance improves dramatically with height above ground, especially on VHF and UHF bands. Physically, the HO LOOP Antennas are square, fabricated from two 3/8 in. diameter aluminum tubes to minimize losses. Their sealed feed block provides weather protection with minimum wind drag. The heart of this unique design is the shorted stub matching to a 50 ohm coaxial feedline. They are lightweight and have very low wind area, which makes them ideal for stacking in base or mobile operations. Mounting is via a single 3/8 in. hole that is standard for most mobile hardware, with optional mounting hardware available for base* or mobile installations, as shown. Minimum vehicle mounting height and stacking separation dimensions are displayed in the details for each HO LOOP. Gain figures appear below and in their Instruction Manuals. *NOTE: Mounting of HO-LOOPS on a 1-1/4 to 2 inch mast for base operations requires the optional MSQ-MASTBRKTKIT. Enjoy the thrill of VHF and UHF weak signal operations with M2 Antennas HO LOOP Antennas from DX Engineering! Gain figures for each loop at specific heights above ground for mobile operations. However, loop installations for base operations should be as high above ground as possible, just as though it were a beam (but no rotator required). 50 MHz Gain: Single HO Loop at 11 ft. is 4.2 dBd at 25 deg.; Stack of 2 HO Loops at 40 ft. and 52 ft. is 8.2 dBd at 6 deg. 144 MHz Gain: Single HO Loop at 10 ft. is 4.0 dBd at10 deg.; Stack of 2 HO Loops at 82 in. and 132 in. is 8 dBd at 9 deg. 222 MHz Gain: Single HO Loop at 84 in. is 4.7 dBd at 7 deg.; Stack of 2 HO Loops at 84 in. and 117 in. is 8.2 dBd at 7 deg. 432 MHz Gain: Single HO Loop at 86 in. is 5.0 dBd at 4 deg.; Stack of 2 HO Loops at 84 in. and 100 in. is 8.8 dBd at 4 deg.
( 20 )
$115.99
—
$229.99
Chameleon Antenna Lightweight 8010 End Fed Halfwave Sloper
Chameleon Antenna Lightweight 8010 End Fed Halfwave Sloper is an eight-band HF antenna for use on the 80 - 10 meter Amateur Radio bands without the need for a tuner and 60 meters is possible with the help of an antenna tuner. Near-Vertical Incident Skywave (NVIS) communication is possible, but dependent on the configuration of the antenna when installed. The CHA LEFS 8010 is designed for the trail and its minimalistic design and lightweight components make this antenna ideal for backpackers, hikers, bikers, campers, and survival communication. The sturdy line winder with integral high-efficiency impedance matching transformer, ultra-thin 20 gauge PTFE Kevlar antenna wire and lightweight Micro 90 paracord enables extremely portable eight-band operation without the extra bulk of an antenna tuner. Leave the antenna tuner at home, just bring a radio and a pair of boots! Order a Chameleon Antenna Lightweight 8010 End Fed Halfwave Sloper for your next expedition from DX Engineering today! -Includes- 1 - CHA LEFS – 63 ft. Tinned Copper KEVLAR PTFE (Teflon) wire. 1 - CHA LEFS – 67 ft. Tinned Copper KEVLAR PTFE (Teflon) wire) (-70°C to 150°C) 1 – 50 ft. MICRO 90 Paracord 1 – Wire Winder Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information. Lightweight 8010 End Fed Halfwave Sloper Additional Features and Specifications: -Frequency Range- 80M - 3.500 – 4.000 MHz 40M - 7.00 - 7.300 MHz 30M - 10.100 – 10.150 20M - 14.100 - 14.350 MHz 17M - 18.068 - 18.168 MHz 15M - 21.000 – 21.450 MHz 12M - 24.890 – 24.990 MHz 10M - 28.000 – 29.700 MHz * SWR: Typically, less than 2.0:1 (Frequency Ranges Listed Above) * Power: 500W SSB, 250W CW, 150W Digital * RF Connector: UHF SO-239 * Length: 63 ft / 130 ft with Extension * Operating Temperature -94° – 302° (-70°C to 150°C) * Weight: 1.5 lbs.
( 2 )
$225.00