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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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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
Scratch & Dent
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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$404.79
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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