Availability
Elite DXing and Contesting Devices
VA6AM Engineering HF Multiplexers
VA6AM Engineering HF Multiplexers are transmit and receive capable Diplexers and Triplexers that are sophisticated RF filtering splitter/combiners. Always used along with monoband HF Band-Pass Filters, they allow multi-transceiver stations to share a single multi-band antenna, simplifying multi-op antenna systems. Supplied with standard UHF Female/SO-239 connectors, HF transmit multiplexers are great for Field Day, contesting and multi-op DXing. Use them anytime you need to operate multiple rigs on one multi-band antenna! Insertion loss is negligible; typically, less than 0.2dB in band! VA6AM Engineering Diplexers and Triplexers provide good levels of isolation between band ports. The multiplexer's main purpose is to provide 50-ohm SO-239 connections for multiple transceivers and balance the impedances for a single 50-ohm feedline to a multi-band antenna. Alternatively, VA6AM Engineering Diplexers and Triplexers can be used to combine multiple low-SWR resonant antennas into a switchless multiband system for a single transceiver.
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$359.99
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$389.99
Yaesu SCU-LAN10 Network Remote Control System
Yaesu SCU-LAN10 Network Remote Control System brings the advanced functionality of Ethernet LAN port direct remote control to the unparalleled FTDX-101D and FTDX-101MP Transceivers and the impressive, compact and affordable FTDX10 Transceiver. All of the excitement of these phenomenal radios is available to any PC, on your local network or via the Internet from anywhere in the world, with the SCU-LAN10 interface units connected to the transceiver and a local network or the Internet. SCU-LAN10 Network Remote Control Software is available for download from www.yaesu.com Also available from the same link is the required Firmware Update versions listed here for the FTdx-101 series transceiver to be used with the SCU-LAN10 Interface: - MAIN: V01-14 - DISPLAY: V01-06 - IF DSP: V01-05 - SDR: V02-03 To confirm the firmware version on your FTdx-101 series transceiver, press [FUNC] key, touch [EXTENSION SETTING] and then select [Soft Version]. The software version will be displayed. All FTDX10 versions are supported. Each SCU-10LAN unit includes a special 13-pin DIN interface cable, a USB cable and two snap-on ferrite RFI suppressors. Specifications: Supply Voltage: 13.8 VDC Nominal Operating Voltage: 9 VDC to 15.2 VDC Current Consumption: 800 mA (max) Operating Temp Range: +32F-122F (0C to 50C) Dimensions: (WHD) 4.37 x 1.24 x 5.31 in. (111 x 31.5 x 135 mm) Weight: 0.93 lbs. (420g) NOTE: * A wired LAN port Ethernet router connection is required. Wi-Fi is not supported. * When using the internet, a fixed global IP address or fixed domain name is required for the network where the remote controlled radio is installed. Equip your Yaesu FTDX-101MP, FTDX-101D or FTDX10 transceiver for Internet LAN remote control operations with the Yaesu SCU-LAN10 Network Remote Control interface unit from DX Engineering.
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$447.99
RigSelect Pro Transceiver Switch and SO2R Controllers
RigSelect Pro Transceiver Switch and SO2R Controllers boast an extensive array of capabilities that make it possible to implement an award winning SO2R station where any two of up to four connected radios can be selected as the SO2R pair, and in any order. Switch one set of headphones, microphone, paddle/key, and PTT line among any of four radios. RigSelect uses quiet solid-state relays for all audio switching, which makes Switching extremely fast and telecom quality relays are used for all Mic, Key, and PTT circuits. Additionally, the RigSelect Pro features a crisp color TFT display for status and menu operations.
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$859.99
VA6AM Engineering HF Band-Pass Filters
VA6AM Engineering HF Band-Pass Filters are very high-quality multi-stage inline passive electronic devices designed to specifically limit the transmitting and receiving RF passband to a single Amateur band. They provide the clear benefit of a dramatically lower noise floor for enhanced single-band weak signal reception that is desired by DXers, elite contesting stations and Field Day operations. Used individually on mono-band radio and antenna combinations, these filters provide the isolation required, eliminating image and harmonic RF interference issues for dedicated mono-band operations in multi-radio contesting environments. Required for use with transmit multiplexers, these filters provide the additional isolation needed to allow multiple transceivers to be operated on different bands simultaneously on the same antenna.
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$235.99
ACOM eBox Ethernet Remote Control Devices
ACOM eBox Ethernet Remote Control Devices directly integrate ACOM power amplifiers to Ethernet networks for Internet Remote operations. ACOM eBox is specifically designed for use only on ACOM power amplifiers. DX Engineering sells the two versions available, sold with different interface cables: * AOM-EBOX-SS for ACOM 600S, ACOM 700S and ACOM 1200S * AOM-EBOX-2000 for ACOM 2000A with RCU The eBox receives the amplifier's specific commands via Ethernet interface and forwards them to the ACOM amplifier. EASY to OPERATE There is no software to install! The administration of the eBox is done via Web-based programming interface specially developed for ACOM amplifiers. You can use any personal computer running any operating system. You just need to run web browser as Chrome, Opera, Firefox, MS Edge, Safari, etc. ALWAYS UP-TO-DATE Your eBox is always up-to-date due to its integrated function for firmware update. The newest firmware versions are available (usually as *.bin files) at www.acom-bg.com. With just a few clicks you can upload a new firmware to the eBox. ACOM eBox SPECIFICATIONS: * Remote control capabilities via Ethernet * Suitable for use with ACOM 600S, 700S, 1200S and 2000A Power Amplifiers * Web browser-based user-friendly interface NOTE: Included universal 100-240 VAC wall mount power supply with European plug is adapted to North American plug with DMV-EURO-US-PLUG, included in eBox combination models ending in -P.
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$749.99
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$757.98
Sierra Radio Systems General Purpose Input/Output (I/O) Modules
Sierra Radio Systems General Purpose Input/Output (I/O) Modules are the heart of the Station Controller system allowing the user to turn station power on and off, control power to ancillary devices, measure voltages and equipment temperatures. Featuring a total of 18 I/O channels to control and monitor a variety of items within the shack. The various I/O includes: • 4x 0-50 Vdc volt meters, ground referenced. • 4x SPST Built-in relays capable of switching up to 2A • 4x Open collector outputs for external 12 volt relays or 'Pull to ground" activated devices. • 4x Optoisolated digital inputs for door alarms, band decoders, etc. • 2x Digital Temperature probes, available on 3 ft. and 6 ft. cables
Not Yet Reviewed
$230.00
Antennas-Amplifiers 6290 2m 100W Transmit Band Pass Filters
Antennas-Amplifiers 6290 2m 100W Transmit Band Pass Filters are equally effective for both transmitting and receiving, boasting a super low insertion loss of just 0.15 dB. These Band Pass Filter are designed for use with transceivers and transverters up to 100W output. They are also ideal for placement before any wide band low noise amplifier (LNA) to protect against out-of-band signals. With their super low insertion loss, these 2m Transmit Band Pass Filters are excellent for use before any LNA or to protect receivers from HF transmitters. They effectively suppress signals from HF (1.8 – 28 MHz), 6 meters (50-54 MHz), and 70 cm (430 – 440 MHz) bands. Additionally, these filter helps reduce television interference (TVI) problems, making them particularly useful if you or your neighbors have strong HF, 6 meter, or 70 cm transmitters.
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$267.99
4O3A High Power Band Pass Filters
4O3A High Power Band Pass Filters are intended for installation on the output side of a linear amplifier, filtering out harmonics as well as broadband noise from the power amplifier. Typical Applications: • Mitigating intra and inter station interference during contests. • Protecting receiver circuitry from damage. • Reducing RFI egress and ingress during everyday operation. • Enabling full duplex operation (transmitting and receiving simultaneously) on capable transceivers. • High power handling capability – up to 4,500 Watts ICAS. • Exceptional out of band rejection, typically > 55 dB and sometimes as high as 75 dB on adjacent 'contest' bands thanks to the 5 pole filtering.
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$515.99
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$557.99
Antennas-Amplifiers 6530 70cm 200W Low Loss Band Pass Filters
Antennas-Amplifiers 6530 70cm 200W Low Loss Band Pass Filters are designed for stations requiring low insertion loss and reliable front end protection across the 430–450MHz range. Capable of handling up to 200 watts of transmit power, these filters are equally effective in both transmit and receive applications—introducing only 0.12dB of loss while sharply attenuating out of band signals. Installed after a 200 watt transmitter, the 6530 helps suppress unwanted emissions and reduces interference into neighboring bands. When positioned ahead of a wideband preamplifier, it prevents overload and desensitization caused by strong signals outside the passband, making it ideal for weak signal, contesting, repeater, and EME applications. The 6530 filter employs high Q coils and capacitors with unloaded Q values exceeding 1500, ensuring steep skirts and excellent selectivity. For durability, a rigid 0.8 mm brass enclosure provides mechanical stability and long service life. N type female connectors ensure secure, low loss connections.
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$288.99
Sierra Radio Systems Raspberry Pi Host Adaptors
Sierra Radio Systems Raspberry Pi Host Adaptors are the brain of the station controller system. Featuring a Raspberry Pi™ 3 running the Node Red Station Controller flow, simply plug your modules into the RJ45 ports on the controller board, apply power to any board and the system is ready to go. Power is supplied by attaching power to either the power pole connection or the 2.5mm plug and power can be applied to any board in the system. Three RJ45 jacks provide connection and power to the other modules in the system, and you can add modules as you need them. There is an optional Heltec v3 LoRa radio module to be able to control over the air, but this is not a requirement for full station control operation. The SIR-310 comes with: • The Raspberry Pi Adaptor board with built-in power supply and DCN hub • Raspberry Pi 3 single board computer • SD card with the latest operating system and Node Red Station Controller flow NOTE: At least one module is required for the Raspberry Pi Host Adaptor to be able to control devices in the shack.
Not Yet Reviewed
$230.00
RF Meca 200W Transmit Band Pass Filters
RF Meca 200W Transmit Band Pass Filters are perfect for contesting at low power and for DXpeditions when multiband antennas are used. These high-quality bandpass filters, from the French manufacturer RF Meca, feature an HF-tight sheet metal housing to maintain optimal functionality and signal integrity. Advantages of RF Meca Bandpass Filters. Reduction of Interference: Band pass filters block unwanted signals outside the target frequency band, minimizing interference from adjacent frequencies and improving signal quality. Improved Signal-to-Noise Ratio (SNR): By suppressing noise and interference outside the desired frequency range, band pass filters enhance the SNR. This makes it easier for the receiver to detect weak signals in the target frequency band, effectively increasing the system's sensitivity. Avoiding Overload: Strong signals outside the target band can overload the receiver and cause distortion. Band pass filters prevent this by allowing only the desired frequency band to pass through. Avoidance of Harmonic Interference: Band pass filters help suppress harmonic and other non-linear distortions that could radiate into neighboring bands.
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$239.99
Sierra Radio Systems RF Watt Meter Modules
Sierra Radio Systems RF Watt Meter Modules are an addition to the Station Controller Modules. The module, in conjunction with 1 or 2 active RF power monitoring sensors, provides multiple modes of measurement. Using the Node Red Station Controller Workflow the user can select between periodic measurements, streaming data (with less than 1 second of refresh), and remote repeater keying. Using any combination of the HF-1, LP-1 and UHF-1 RF sensors, which are supplied by WaveNode, the module will provide RF sampling up to the power level of the specific sensor. NOTE: This module requires at least one RF sensor that are supplied by WaveNode. These can be purchased directly from WaveNode at https://wavenodedevelop.com
Not Yet Reviewed
$230.00
Antennas-Amplifiers 15M High Power Band Pass Filters
Antennas-Amplifiers 15M High Power Band Pass Filters cover the 21.0-21.45MHz frequency range, with power handling capabilities up to 4,000W PEP and they are perfect for multi-station environments like special events, field days and portable operation to protect receivers from excessively strong out-of-band signals. The ATF-5540 is ideal for both reception and transmission and is designed to have an extremely insertion low loss of less than 0.12 dB from 21.0-21.45MHz (15 meters) and significantly suppresses out-of-band interference. All Measurements on the assembled filters were performed with a full 2-port calibrated HP8753ES network analyzer. The ATF-5540 Band Pass Filters are engineered with an advanced filter design, enclosed in a robust powder-coated aluminum enclosure. They are equipped with silver-plated SO-239 connectors, ensuring exceptionally low insertion loss, minimal SWR, and high attenuation of out-of-band signals across the entire 15M band.
Not Yet Reviewed
$392.99
Antennas-Amplifiers 6311 2-meter 200W Narrow Band Pass Filters
Antennas-Amplifiers 6311 2 meter 200W Narrow Band Pass Filters are engineered to deliver reliable, high-performance signal conditioning across the full U.S. 2 meter amateur band (144–148 MHz). Designed to handle power levels up to 200 watts, these filters effectively refine transmitter output while also serving as protective front-end filters for broadband preamplifiers, shielding sensitive equipment from unwanted out-of-band signals. Built with precision high Q coils and premium capacitors, they achieve exceptionally low insertion loss while maintaining outstanding selectivity. These filters also help mitigate TVI issues and reduce interference from nearby strong transmitters on HF, 6m, or 70cm bands, ensuring smoother operation and improved coexistence with neighboring systems.
Not Yet Reviewed
$295.99
Antennas-Amplifiers 6320 2-meter 1500W Transmit Band Pass Filters
Antennas Amplifiers 6320 2 Meter 1500W Transmit Band Pass Filters are engineered for high performance 144–148MHz operation, delivering exceptionally low loss and outstanding harmonic suppression for demanding transmit and receive environments. Built with ultra high Q coils and capacitors—each exceeding a Q factor of 4500—these filters achieve their low loss performance through precise component selection and meticulous factory alignment. Designed primarily for high power transmitting applications, the 6320 also excels as a receive chain protector, making it suitable for placement ahead of wideband LNAs (low noise amplifier) to shield sensitive front end devices from powerful out of band RF energy. Supporting amplifiers such as the 8877, GS35, GS31, and other tube or transistor based stages up to 1.5kW output, the 6320 delivers exceptional stability under heavy load. Its integrated 12VDC cooling fan ensures reliable thermal management during extended operation, while rugged N type female connectors provide secure, low loss RF connections. The filter's performance makes it ideal for DXpeditions, multi multi contest stations, and installations where strong HF, 6 meter, 1.25 meter, or 70 centimeter signals would otherwise overload receivers or degrade system sensitivity. Offering deep suppression of unwanted signals from HF (1.8–28MHz), 50–54MHz, and 70cm (430–440MHz), the 6320 effectively eliminates harmonics and reduces the risk of TVI and RFI issues—an important advantage for operators working in close proximity residential environments. All performance data for the 6320 is verified using an HP8753ES network analyzer with full two port calibration, ensuring accuracy and real world confidence in its measured attenuation and insertion loss characteristics.
Not Yet Reviewed
$408.99
Sierra Radio Systems Remote Coax Switches
The Sierra Radio Systems Remote Coax Switches are designed for ease of remotely switching the antennas using the Node Red Station Controller Flow. Designed for a maximum power rating of 100 watts, and covering the 1 to 60 MHz frequency range, the insertion loss on the HF bands is less than .05 dB and port isolation is between 53 and 65 dB across the HF Band. Latching relays will maintain the position of the switch if power is removed from the module. When the module switches the antenna, it releases the current connection prior to making the new connection. Built in firmware prevents any two relays from being active at the same time and all relays could be put in a disconnected state. A terminal block at the top of the module provides 4 momentary pull to ground inputs to allow external pushbutton control or electronic switching to select the active antenna. Two modules may be connected via the common port, allowing for a 4 x 4 switching arrangement where any one of 4 antennas could be connected to any one of 4 radios. Additional Feature and Specifications: Max power limit: 100W Frequency range: 1-60 MHz
Not Yet Reviewed
$230.00
Antennas-Amplifiers HF 2500W High Pass Filters
Antennas-Amplifiers HF 2500W High Pass Filters are passive RF devices designed to pass signals above a defined cutoff frequency while rejecting unwanted lower-frequency signals. It is intended for use in environments where suppression of low-frequency interference is required, such as from low frequency (LF) transmitters (30–300 kHz) or medium wave AM broadcast stations (526.5–1450 kHz). These filters are particularly effective in mitigating interference from these sources. An optional notch filter can be implemented to target and further suppress specific AM broadcast frequencies. Measured data for these 5720 High Pass Filters was obtained using a fully calibrated HP8753ES 2-port network analyzer. These excellent results were achieved by careful selection of components and design.
Not Yet Reviewed
$551.99
OM Power OM6BPF Automatic Bandpass Filters
OM Power OM6BPF Automatic Bandpass Filters are extremely useful and attractive multiband inline desktop units, which contain six individual high-Q hand-tuned internal band pass filter boards that cover all six Amateur Radio contesting bands: 160, 80, 40, 20, 15 and 10 meters. The OM Power OM6BPF effectively removes unwanted and interfering noise and signals from all but the single band selected for operation. Enjoy ultra-quiet reception and eliminate out-of-band emissions from the transmitted signal. The OM6BPF features low insertion loss, excellent out-of-band rejection, and handles 200 watts key-down RF. The filter design is 50 ohm, and this unit has SO-239 connectors for installation between the transceiver and the input of an amplifier or a tuner. Adding the OM Power OM6BPF will prove its worth everywhere – especially where multiple stations are present on multiple bands from a specific location like DX expeditions, MS/MM contest stations and SO2R stations. The OM6BPF protects the front end of the receiver and also eliminates or reduces interference coming from every other band, for quieter reception at any station. Join the "Contesting Class" of operators who use individual band pass filters, with the convenience of an attractive, self-contained and functional multi-band filter unit. Choose OM Power OM6BPF Automatic Bandpass Filters for your station.
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$1,499.99
DX Engineering HF QRP Bandpass Filters
DX Engineering HF QRP Bandpass Filters are designed to tightly confine both transmitted and receive signals to one specific Amateur band, these filters significantly reduce out of band noise, resulting in a noticeably lower noise floor and improved weak signal reception. In multi operator contest or portable operations, they deliver the essential isolation needed to eliminate image and harmonic interference, ensuring clean mono band performance even in close quarters environments. Each filter features a sharp roll off just outside the band edges, providing exceptional rejection of adjacent band signals and maintaining maximum operating efficiency for QRP applications. Offered for the 80, 40, 20, 15, and 10-meter amateur bands, they install easily in line with the coax feedline using the BNC connectors provided on each end. With power ratings of 20 watts SSB and 5 watts digital, they are ideal for QRP enthusiasts participating in multi operator events such as Field Day, POTA, and SOTA.
Not Yet Reviewed
$69.99
QRO.cz OLI 12 IP-Based Station Controllers
QRO.cz OLI 12 IP-Based Station Controllers are compact web-controlled IP relay controllers designed for seamless integration with K9AY++, 4-WAY beverage antenna systems, and 7ANT remote antenna controllers. Housed in a rugged aluminum enclosure, these controllers offer 12 positive-voltage outputs with built-in electronic fuse protection, making them ideal for remote antenna switching, preamp control, and band-pass filter selection. With a web-based user interface, support for Node-RED, Stream Deck, and Touch Portal, the OLI IP Controllers enable intuitive and flexible station automation. They connect via a standard DB15 cable and LAN port, requiring no firmware uploads or complex configuration—just plug in and go.
Not Yet Reviewed
$258.99
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.
Not Yet Reviewed
$404.79
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$459.99
Antennas-Amplifiers 6347 Dual Band 2M/70cm 750W Diplexers
Antennas-Amplifiers 6347 Dual Band 2M/70cm 750W Diplexers are high power, bidirectional 750 watt diplexers designed for seamless operation across the 2-meter (144–148MHz) and 70cm (430–450MHz) amateur bands. It provides efficient VHF/UHF signal combining and separation, ensuring maximum flexibility for single feed and dual feed station configurations.
Not Yet Reviewed
$368.99
Antennas-Amplifiers 6340 2m/70cm Dual Band 200W Bandpass Filters
Antennas-Amplifiers 6340 2m/70cm Dual Band 200W Bandpass Filters are precision engineered for operators who demand clarity, power, and reliability. Designed with exceptionally low insertion loss and a 200 watt power rating, these filters excel at both transmit and receive, preventing receiver overload from HF, 6m, and 4m stations while powerfully suppressing harmonics above 450MHz, including 720MHz, 864MHz, GSM 930MHz, and even 23cm at 1296MHz. With an input return loss better than –26dB, a broad operating range of 144–450MHz, and features N type female connectors. Their precise bandpass design allows only the 2m and 70 cm bands to pass cleanly, ensuring that unwanted signals and interference are effectively eliminated for consistently clear communications. Compact, easy to integrate, and especially well suited for dual band antennas, these filters bring professional grade performance to your shack.
Not Yet Reviewed
$318.99
Paradan Radio Dual Operator Controllers
Paradan Radio Dual Operator Controllers are exciting devices that enable two operators to use one transceiver to independently make contacts and listen. This audio, microphone, and PTT controller is perfect for two-person portable operations like POTA or SOTA, as well as tandem operating during events such as Field Day or radio contests. This controller is exactly what hams need for one-on-one training of new operators, for any type of operation including casual, DXing and contesting! This is a perfect way for parents, grandparents, siblings and friends to share their love of our great hobby and to get others on the air! The Dual Operator Controller is appropriately designed for each operator to wear their own personal headset and to use their designated footswitch. Both operators hear the transceiver audio until Operator 1 depresses their footswitch. Then their respective LED illuminates, the audio is muted to their headphones, their headset microphone is connected and the radio keys to transmit. As Operator 1 completes the contact (QSO), Operator 2 can hear the QSO via the radio monitor audio and either operator can perform the logging function for the QSO. When Operator 1 releases their footswitch, Operator 2 can depress their footswitch, their LED lights and everything connects in order for them to make a QSO on the same transceiver, while Operator 1 listens. Of course, either operator can perform logging tasks, or each can do their own logging. The dual footswitch PTT of the Dual Operator Controller functions on a "first come, first served" basis. Either operator can key the transceiver and talk, just not both at the same time. No computer or software is required or connects to the Paradan Radio Dual Operator Controller. This device provides a simple and straightforward way to connect mic, headphones and PTT for "2OSR" - Two Operator - Single Radio fun! The Paradan Radio Dual Operator Controller set includes the controller, two footswitches, one brand and connector specific radio interface cable (8-pin Round or 8-pin Modular RJ45; Icom or Yaesu), a 3.5mm male audio patch cable and 6.35mm adapter, and a power cable for 10-15VDC. Order the unit that corresponds to the correct mic cable for your transceiver. Internal jumpers can be set to configure the unit mic input for either dynamic or electret on both microphone elements. This controller works with Amateur headsets that have an attached boom microphone, and consumer headsets referred to as "computer or gaming" headsets. Paradan Radio Dual Operator Controller Specifications: * Power: 10-15 Volts DC * Power Input Connector: 2.1mm * Footswitch Connector: 1/4 inch (6.35mm) female * Headphone and Audio Connectors: 1/8 inch (3.5mm) female stereo * Headset Microphone Connectors: 1/8 inch (3.5mm) female stereo (accepts mono plug) * Radio Microphone Adapter Cable: 8-pin Round or RJ-45, manufacturer dependent. * Audio Cable: 18 in. length, 1/8 in. (3.5mm) plugs, 1/8 in. to 1/4 in. adapter * Power Cable: 36 in. length, 2.1mm DC plug to Powerpoles * Dimensions, WHD: 4.75 x 1.50 x 2.50 in. (121 x 38 x 64mm) * Weight: 12 oz. (0.34 kg)
Not Yet Reviewed
$170.00