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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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$775.99
$504.39
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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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$128.99
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$139.99
$96.74
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$104.99
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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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$799.99
$439.99
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$719.99
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Comet CAA-500MARKII Antenna Analyzers
NEW and IMPROVED Comet CAA-500MarkII Antenna Analyzers retain the cross-needle analog function of their predecessor and add a full-color TFT LCD providing graphic and numerical, SWR, total impedance with R and X values (resistance and reactance), along with frequency and battery indicator. Comet was the first to offer a wide range SWR analyzer with an oscillator covering 1.8-500MHz. The new version also provides a very accurate, simple to use SWR and impedance analyzer to the Amateur Radio community. Their analog cross-needle meter displays SWR and impedance simultaneously as you sweep the chosen frequency range, instantly providing the information needed to make antenna adjustments. These Comet analyzers can scan your desired frequency range in seconds, allowing for quick SWR adjustments. Since SWR and impedance, resistance and reactance in ohms are all displayed simultaneously, you are able to determine resonant frequency more easily. These antenna analyzers, powered by six AA Alkaline cells, provide up to 10 hours of operation. With their built in trickle charger, you may also use Nickel-Metal Hydride (NiMH) cells. CAA-500MarkII analyzers have wonderful features: * Auto band sweep function: Switch to the amateur band of choice and press the "Sweep Center" button. The chosen band is swept and the SWR graphed in seconds. * Manual band sweep function: Choose the band, the center frequency, and the bandwidth and manually sweep the frequency range. * Multiple manual sweeps: The graph will overlay manual sweeps in 5 different colors! Make antenna length, position, height above ground, gamma match adjustments etc., and graph each adjustment in seconds without losing the previous graph! * SO-239 connector for 1.8-300 MHz range * Type-N connector for 300-500 MHz range * 8-16VDC external power or 6 AA Alkaline batteries (up to 10 hours of operation) or use Nickel-Metal Hydride (NiMH) cells * Built-in trickle charger (for NiMH batteries, only) * Battery indicator * External DC Power 2.5mm plug and cable included * Selectable auto-power off Note: For additional product information, please look at the files under the "Documentation" tab. The 500MarkII Analyzers retain the simplicity of analog measurements and add digital readout, sweep functions and a full color LCD screen to quickly, visually, analyze antenna performance and adjustments. Get your Comet CAA-500MarkII Antenna Analyzer on order from DX Engineering. Adjust and track YOUR antenna!
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$399.99
$359.99
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Gator Cases Rackworks Equipment Rack Shelves
A Gator Cases Rackworks Equipment Rack Shelf will support and mount equipment that is not built to be rack mountable. A wide variety of multi-purpose rack shelf configurations and depths allow you to customize your equipment case. Available shelf models include solid metal, pre-drilled with many holes for equipment mounting and several versions have elongated slots for ventilation. All Rackworks Equipment Rack Shelves are made of cold rolled 16 gauge steel with a black powder coated finish. These are rugged metal shelves to accommodate all types of equipment. They may be mounted for use as a tray or inverted and used as a platform. Customize the configuration of your case with Gator Cases Rackworks Equipment Rack Shelves from DX Engineering.
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$84.99
$72.24
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Alinco DR-138TMKII 2 Meter Mobile Transceivers
Alinco DR-138TMKII 2 Meter Mobile Transceivers deliver up to 70W of output power with selectable 70W/25W/10W (H/M/L) settings. Advanced noise reduction and voice commander technology provide exceptional audio clarity, even in noisy environments. Built for durability, the DR-138TMKII features a cooling fan to maintain optimal performance during extended operation. With 200 memory channels, wideband FM broadcast, and air band capabilities, the DR-138TMKII offers versatility and includes a wide variety of selective calling features such as built-in 2-Tone, 5-Tone, 50 CTCSS, 114 DCS, 4 Tone-burst tones, and DTMF/ANI decode, plus radio stun/kill/revive functions for enhanced communication security. The large, bright LCD and easy-to-operate backlit keys, paired with a multi-function backlit microphone for direct frequency entry, make operation intuitive. Additional features like various scan modes, key lock, and wide/narrow operations are included.
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$229.95
$202.36
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Chelegance JMAST-1800 Telescopic Aluminum Surveying Tripods
The Chelegance JMAST-1800 Telescopic Aluminum Surveying Tripods are sturdy tripods that allow for setup on uneven terrain. Each of the three legs extends to a total of 5.9 ft. and will allow for the legs to be placed up to 180 degrees from the center position of the tripod, allowing for stable setup on almost any terrain. Positive locking on the legs means that they will stay where you place them and with pointed tips ensure that the tripod will grip on most terrain. Collapsed, this mast is 3.5 ft. and weighs 6.17 pounds, making it perfect for Field Day or other portable operations. This tripod doesn't include a center mast and will accept a mast between 1 and 1.5 inches in diameter.
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$99.99
$84.99
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Green Heron RT-21-CDE Universal Digital Rotor Controllers
Green Heron RT-21-CDE Universal Digital Rotor Controllers are completely new, extremely advanced and adaptable controllers for your directional antenna rotation systems. Offering the ultimate in operational capabilities, Green Heron RT-21-CDE Universal Digital Rotor Controllers are the best controllers available for your new rotor unit or as a replacement in existing systems. You can add these great features to your existing rotator unit, without even climbing the tower! * Pre-programmed for Hy-Gain and CDE rotator systems * High-visibility LCD display with adjustable backlight brightness * Fully versatile controls for point-and-shoot or manual push button operation plus presets * Automated rotator computer control through RS-232 or USB * PWM (pulse width modulated) variable-speed control * Start and stop ramping to reduce tower and antenna stresses * Precision heading accuracy up to 1/10 degree * Fully supports side mounted antennas, soft limits prevent running into tower * Allows over-travel up to 720 degrees total * Offset control allows center of rotation at any heading, allows N & S center on same mast, and compensates for slipped mast * Fully user-programmable, reversal and brake delay, speed minimum and maximum, limits, ramps, and much more * Master/slave for stacked arrays, turn together or separately * Counter-rotation, install rotor above rotating tower * Easy front panel setup and setup utility software Replace your old-fashioned rotator controller with a modern, state-of-the-art digital controller! Green Heron RT-21-CDE Universal Digital Rotor Controllers from DX Engineering are pre-programmed specifically for Hy-Gain/CDE HAM-series and T2X (Tailtwister) rotators. However, they are easy to setup for all other rotator units because they are field programmable with convenient, internal, solderless jumpers. Get yours today!
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$649.00
$571.12
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OM Power OM-2000A+ HF Plus 6 Meter 1,500W+ Auto Tune Linear Amplifiers
OM Power OM-2000A+ HF Plus 6 Meter 1,500W Auto Tune Linear Amplifiers (OMR-OM-2000A) features one FU-728F Ceramic Tetrode tube capable of providing stable, full legal limit all-mode output power and frequency coverage of the Amateur bands ranging from 1.8 to 29.7MHz plus 50MHz. CW ops will enjoy QSK (full break-in) with the silent T/R vacuum relay. The Intuitive 4.3-Inch color Touch Screen and front panel indicators allow you to stay informed about the operational status of the amplifier and effortlessly gain access to advanced features and settings. Full band change or frequency reading compatibility is built in for modern transceivers and RF Sense band change supports legacy transceivers. The OM-2000A+ supports automatic antenna switching for up to 10 antennas. Remote Control operation is supported via LAN and available PC program download. The OM-2000A+ is considered one of the most compact and lightest 1500W+ HF automatic tuning amplifiers on the market.
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$7,199.99
$5,903.99
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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
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$575.99
$518.39
Scratch & Dent
Astron Power Supplies
When you are in need of reliable DC power supply, look no further than Astron Power Supplies. This line of linear DC power supplies are made of heavy-duty, high-quality materials. Astron has your power requirements covered with a wide variety of voltage and amperage outputs and case styles with and without meters. Even their power supplies with only cigarette lighter sockets or with Anderson Powerpoles on the front panel still have DC output terminals on the rear panel. That's convenient! Astron linear-type transformer power supply features include: * 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 except RS-3L, RS-4L and RS-5L * Tight regulation and low ripple at low line input voltage * Heavy-duty heat sink (70A models add a low noise fan) * Three conductor power cord * All metered units feature backlit meters At DX Engineering, we bring you only the best - Astron Power Supplies do not disappoint! Performance specifications: * Input Voltage: Most models are built for 105 to 125 VAC input. Some "220" models are built for 210-250 VAC input. * Output Voltage: As Listed * Ripple less than 5 mv peak to peak (full load and low line) At DX Engineering, we bring you only the best - Astron Linear Power Supplies do not disappoint! For reliability and convenience, look to Astron Power Supplies from DX Engineering.
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$367.99
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Antennas-Amplifiers 6344 Double 2x200W 2m & 70cm Bandpass Filters
Antennas-Amplifiers 6344 Double 2x200W 2m & 70cm Bandpass Filters are a dual band, dual power 2×200W band pass filter engineered for clean, interference free operation on both 144–148MHz (2m) and 430–450MHz (70cm). This "double" filter design incorporates two independent high power bandpass sections, each rated for 200 watts, providing exceptional filtering performance for stations using a single feed dual band antenna. Built to dramatically reduce unwanted signals, the 6344 suppresses not only HF, 6m, 4m, and FM broadcast interference but also problematic intermediate VHF/UHF frequencies such as 170MHz and 210MHz, as well as key harmonic ranges including 288MHz, 720MHz, 880MHz, and more. The result is a cleaner signal path and significantly reduced receiver overload in busy RF environments. With very low insertion loss on both amateur bands, the filter maintains full transmit and receive performance while sharply attenuating out of band energy. Its dual band architecture makes it especially ideal for use with 2m/70cm dual band antennas that use a single connector, providing excellent front end protection without complicating station layout.
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$459.99
$404.79
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AnyTone AT-D578UV PRO Dual-Band VHF/UHF DMR Mobile Transceivers
AnyTone AT-D578UV PRO Dual-Band VHF/UHF DMR Mobile Transceivers have an array of features that make it an excellent choice whether you're at home in the shack or on the go. With selectable transmit power levels—60/25/10/1W on VHF and 45/25/10/1W on UHF—it delivers the flexibility and range needed to reach repeaters that were previously out of range. The AnyTone AT-D578UV PRO VHF/UHF DMR Dual-Band Mobile Transceiver supports both FM Analog and Digital DMR modes across the 136–174 MHz (VHF) and 400–480 MHz (UHF) frequency ranges. It features wideband full duplex receive capability (VV/UU/V+U), allowing simultaneous reception on two frequencies. Each channel (A and B) has its own independent volume control for added flexibility.
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$399.99
$359.99
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Astron SL Series Low Profile Power Supplies
Astron SL Series Low Profile Power Supplies are highly regulated linear supplies designed for moderate power requirements. While all of them make excellent general purpose power supplies, most of the SL Series supplies are designated to work with specific land mobile radios. Manufactured with heavy transformers, they utilize robust parts for durability and long life! All Astron SL Series Low Profile Power Supplies provide a regulated 13.8 Vdc output for the operation of mobile/portable equipment from your 120 volt house current. Check out these features! * Short circuit and over-voltage protection * Output power rated at continuous service * Precision regulation of output voltage * Low peak to peak ripple of less than 5 mv! * External fuse access * Grounded power cord
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$220.95
$198.86