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16 Results Found For "noise"
FlexRadio 8400 Signature Series HF/6-Meter SDR Transceivers
FlexRadio 8400 Signature Series SDR Transceivers offer the latest in high-performance, direct sampling software-defined radio (SDR) technology designed for the HF and 6-meter amateur bands. Designed for hams who operate exclusively via remote access, the FLEX-8400 is engineered as a server-based SDR transceiver. It supports SmartSDR clients on Windows, Mac, iOS, and Maestro, allowing seamless control from virtually anywhere. With dual independent receivers and full duplex cross-band capability, it's ideal for DXing, contesting, and digital modes—no external sound cards or interfaces required. Using a PC, laptop, or Mac client, the FLEX-8400 supports up to two 7 MHz spectrum/waterfall displays and independent receivers, providing enhanced band visibility. Both receivers can operate simultaneously on any band and mode, with instant QSY between VFOs. Digital mode operation is streamlined—no sound cards, cables, or external interfaces required. The radio delivers advanced band awareness, low phase noise, brick wall filters, and high-quality audio performance to support a wide range of operating styles.
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$2,499.00
ACOM 1000 HF + 6 Meter Linear Amplifiers
ACOM 1000 HF + 6 Meter Linear Amplifiers are the world's best value in an Amateur HF amplifier. These amps provide you a comfortable 1,000 watts output on all amateur bands from 160 through 6 meters. The plate-load True Resistance Indicator (TRI) is a powerful tuning aid which helps the operator to quickly and precisely match antennas. The auto-operate function (when enabled) maintains the amplifier in OPERATE mode for you, saving on manual operations. Broadband input matches to the transceiver over the entire range of 1.8-54 MHz. ACOM 1000 amplifiers are both user-friendly and look after themselves. They are designed to safely withstand up to 300 watts reflected power, drive spikes of up to 100 milliseconds duration, drive RF "tails" after a PTT or KEY release and the operator's inadvertent tuning errors. They also withstand a "soft" AC line and will deliver more than half power at only 75 percent of nominal mains voltage. They can withstand voltage drops for up to 10 milliseconds, and up to 15 percent higher line-voltage spikes. These details are all important, particularly when used at Field Day, on DXpeditions and other portable operations. Be sure to read the SPECIAL Note, below. An ACOM 4CX800A high-performance ceramic/metal tetrode with plate dissipation of 800 watts is employed. On-board processing provides permanent monitoring and protection of plate and grid voltages and currents, as well as the exhaust temperature. Text messages, 12 different parameters, and strip peak-reading PEP meter are displayed on a dot-matrix, back-lighted LCD. LED indicators are provided for OPERATE, attenuator-on, and ON/OFF conditions. Records of the amplifier internal status are stored in nonvolatile memory for the seven most-recent auto-protection trips. This information is very valuable should diagnostics be needed. The input bypassing and the vacuum antenna relays are very quiet even in CW mode due to their special mounting. This results in virtually noise-free QSK! ACOM-1000 details: * Frequency Coverage: 1.8-54 MHz * Power Output: 1,000W PEP or continuous carrier; for continuous carrier transmissions longer than 15 minutes the external auxiliary fan must be installed * Intermodulation Distortion: Better than 35dB below rated output * Hum and noise: Better than 40dB below rated output * Harmonic Output Suppression: 1.8-29.7 MHz; 50dB below rated output, 50-54 MHz; 66dB below rated output * Input and Output Impedances: Nominal values: 50 Ohm unbalanced output; Input circuit: broadband, VSWR less than 1.3:1, 1.8-54 MHz; Bypass path: VSWR less than 1.1:1, 1.8-54 MHz continuously * RF Gain: 12.5dB typically, frequency response less than 1dB (50-60W drive power for rated output) * Primary Power: 170-264V (200, 210, 220, 230 and 240V nominal taps), 50-60Hz, single phase, 2200VA consumption at rated output. 230 or 240 volts recommended for USA * SPECIAL Note: Order part number AOM-1000 to wire the AC plug and voltage selection yourself; order part number AOM-1000-240 for pre-wired 240 volt operation or part number AOM-1000-120 for pre-wired 120 volt operation * Complies with CE safety and electromagnetic compatibility requirements as well as FCC-regulations * Size: 16.6 x 14 x 7.2 in. * Weight 58.5 lbs. * Operating environments: Temperature range 32 to 122 degrees F, Humidity up to 95 percent at 95 F * Altitude: up to 3,000m (10,000 ft.) above sea level without output deterioration Note: For additional information, please look at the files under the "Documentation" tab. ACOM says that these are the "world's best value" in an Amateur HF amplifier. Order one of these ACOM 1000 HF + 6M Linear Amplifiers from DX Engineering and decide for yourself! Note: During and after your amplifier's warranty period, DX Engineering will provide service and repair for ACOM amplifiers. A repair fee will be charged for services outside the warranty period.
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$4,364.99
FlexRadio 8400ATU Signature Series HF/6-Meter SDR Transceivers
FlexRadio 8400ATU Signature Series SDR Transceivers offer the latest in high-performance, direct sampling software-defined radio (SDR) technology designed for the HF and 6-meter amateur bands. Designed for hams who operate exclusively via remote access, the FLEX-8400 is engineered as a server-based SDR transceiver. It supports SmartSDR clients on Windows, Mac, iOS, and Maestro, allowing seamless control from virtually anywhere. With dual independent receivers and full duplex cross-band capability, it's ideal for DXing, contesting, and digital modes—no external sound cards or interfaces required. The integrated automatic antenna tuner (ATU) is designed to match antennas with up to 3:1 SWR on 80–10 meters and up to 2.5:1 SWR on 160 and 6 meters. Using a PC, laptop, or Mac client, the FLEX-8400 supports up to two 7 MHz spectrum/waterfall displays and independent receivers, providing enhanced band visibility. Both receivers can operate simultaneously on any band and mode, with instant QSY between VFOs. Digital mode operation is streamlined—no sound cards, cables, or external interfaces required. The radio delivers advanced band awareness, low phase noise, brick wall filters, and high-quality audio performance to support a wide range of operating styles.
( 2 )
$2,849.00
RM ITALY BLA600 Solid State Amplifiers
RM ITALY BLA600 Solid State Amplifiers are wideband, compact, automatic linear amplifiers for 160 through 6 meters; 1.8 to 54 MHz. Low input drive requirements (20 to 25W on 80-10 meters, 30-40W for 500W on 160m and 6m) make these amplifiers THE perfect transceiver companion! RM ITALY BLA600 amplifiers are fully automatic 500W solid-state linear amplifiers suitable for seamless integration with all modern transceivers. They utilize the rugged NXP / Freescale MRF6VP5600H 50V power MOSFET for high power and high reliability. These amplifiers are capable of all modern modulation modes. BLA600 amplifiers are fully automatic, featuring instant RF frequency-reading for band changes and fast, reliable and silent PIN diode TX-RX switching, making them ideal for CW QSK operation (separately purchased transceiver to amplifier PTT keying cable is required.) BLA600 amps have three (3) antenna outputs that are easily configurable on a per-band basis as per the user's requirements. Their RF deck is supplied by a heavy-duty linear power supply, with 240 volt AC input* (115-120 or 230 VAC capable) and utilizes an efficient active bridge rectifier with very high-grade filter capacitors to provide the PA devices with a very low noise and robust 50V DC. The amplifier's RF deck has a large heat spreader and copper heat sink which provides a very efficient cooling system. There are separate fans for the RF deck and LPF board / power supply for high duty cycle operation. Internally, all modules are mounted in a very robust and well-screened enclosure. BLA600 amplifiers feature Dual MCU control and an extensive array of protection circuits that look after the amplifier with rapid reaction time. VSWR, I/P Power, I/P Frequency, Three Temperature sensors; Transistor / Heat sink and PSU, Drain voltage / Drain current and HV PIN supply are all continuously monitored. Some thumbnail details: * Employs Freescale MRFE6VP5600 Power FETs * Drive requirements: 20-25W for 500W on 80-10m; 30-40W for 500W on 160m and 6m * Input drive from 1W to maximum of 40W (1 to 25W w/reduced output) * Power Gain: Typical 14dB +/- 1dB (80-10m) * Solid 500W Output on all modes * Dual MCU Control * Fast PIN Diode RX-TX TX-RX switching enables full QSK operation * 2x16 LCD screen for Amplifier Status * Two Separate LED displays; one for power and one for antenna VSWR * Three antenna output connectors, user-configurable * Dual large-diameter MCU controlled multispeed fans for efficient cooling * 1,200W Linear Power Supply- Highly filtered and regulated * Weight: 21.5kg (47.4 lbs.) * Quiet, 240 VAC operation **Requires a user supplied NEMA 6-15P to IEC 320-C13 Cord. (Internally resettable for 230 or 120 VAC input on jumper board under rear access panel secured with T10 torx screws) * AC Input Fuse: 5 x 20mm F LBC 250V; Fast Blow, 240 VAC 5A (included); or 230 VAC 6A (optional) or 115-120 VAC 10A (optional, with NEMA 5-15P to IEC 320-C13 15A Cord.) WARNING: Amplifier is set from the factory for 240VAC operation. Do not use a low amperage PC power supply AC cord. An IEC C-13 14AWG 15A cord is required with NEMA 6-15P for 240VAC or NEMA 5-15P for 120VAC after internal jumpers and fuse have been changed. If your HF transceiver can be set for 20 to 40 watts output, then you will be sending 500 watts to the antenna on ALL bands 160 through 6 meters using this amplifier. The real beauty is that it all happens fully automatically! There is no tuning and no band switching! Give your signal a nice boost. Order the RM ITALY BLA600 Solid State Amplifier from DX Engineering!
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$2,519.99
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$3,086.99
ACOM 1010 HF Linear Amplifiers
ACOM 1010 HF Linear Amplifiers cover all bands from 1.8 through 29.7 MHz. They provide over 700 W PEP output (or 500 W continuous-modes) with less than 60 watts of drive and operate without special transceiver signaling; they need only "ground on TX" and the required drive. ACOM's exclusive True Resistance Indicator (TRI); enables faster antenna changes and use over wider frequency ranges. Also, a built-in antenna selector switch with two outputs is included to provide instant choice of antennas. Antenna matching can be achieved in less than 10 seconds and at a quarter of nominal output power, which results in lower risk of interference to other stations and greater safety to the amplifier components. A single ACOM 4CX800A high-performance ceramic-metal tetrode with plate dissipation of 800 watts is used for maximum efficiency. These amplifiers are self-monitoring. They are designed to safely withstand up to 240 watts of reflected power, up to 100 milliseconds of drive spikes (RF "tails" after a PTT or KEY release), and even operator tuning errors. They are also capable of operating at more than half their designed output at only 75 percent of nominal line voltage. Because they can tolerate deep voltage drops and 15 percent line voltage spikes, they are particularly well-suited for use in portable environments, such as Field Day and DXpeditions. Importantly, a variety of system parameters are continuously monitored and available to the operator to assure safe and efficient amplifier operation. Design of the high-voltage power supply eliminates the danger of turn-on transients affecting sensitive devices connected to the same line (mains) circuit. Moreover, the amplifier can be configured to accommodate any of eight nominal line voltages between 100 and 240 V, 50 or 60 Hz. Please see the SPECIAL Note, below. ACOM 1010 specifications: * Frequency Coverage: All amateur bands in the 1.8-29.7MHz frequency range * Power Output: 700 W PEP or 500 W continuous modes. * Intermodulation Distortion: Better than 35 dB below rated output. * Hum and noise: Better than 40 dB below rated output. * Harmonic Output Suppression: Better than 50 dB below rated output. * Input and Output Impedance: Output: 50 Ohm unbalanced, SO-239 connectors; Input circuit: broadband, VSWR less than 1.3:1, 1.8-30 MHz continuously (no tuning, no switching); Bypass path: VSWR less than 1.1:1, 1.8-30 MHz continuously, 200 W maximum * RF Gain: 11dB, frequency response less than 1dB (50 to 70 W drive for rated output) * AC Power: 85-132 V/170-264 V ac (100, 110, 120, 200, 210, 220, 230 & 240 V nominal taps, plus 10 percent to minus 15 percent tolerance), 50-60 Hz, single phase, 1,200 VA * SPECIAL Note: Order part number AOM-1010 to wire your AC plug after removing European plug yourself; order part number AOM-1010-240 for pre-wired 240 volt operation (NEMA 6-15P) or part number AOM-1010-120 for pre-wired 120 volt operation (NEMA 5-15P). * Operating environments: Temperature range; 32 to 122 degrees F, Humidity; up to 95 percent at 95 degrees F, Altitude; up to 10,000 above sea level without output deterioration. * Complies with FCC-regulations as well as CE safety and electromagnetic compatibility requirements * Dimensions, (in.) 15.83 W x 12.4 D x 6.5 H * Weight: 39.7 lbs. Note: For additional information, please look at the files under the "Documentation" tab. Get one of these highly-advanced HF amplifiers for your shack. Order an ACOM 1010 HF Linear Amplifier from DX Engineering… today! Note: During and after your amplifier's warranty period, DX Engineering can direct you to the appropriate location for repairs for ACOM amplifiers. That facility will charge a repair fee for services outside the warranty period.
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$3,376.99
Instant Rebate
Kenwood TS-890S HF/50MHz Transceiver
Kenwood TS-890S HF/50MHz Transceiver: The most rewarding results often take place when faced with the harshest and most challenging conditions. HF enthusiasts know this all too well because of their love of HF. KENWOOD has the answer. Achieve results through certainty, not circumstance—delivered with impeccable receiver and audio performance. Introducing Kenwood's most advanced DSP transceiver, the TS-890S. Key features of the Kenwood TS-890S HF + 6M Transceiver: * 160-6 meters 100W All Modes * Full Down-Conversion Superheterodyne * Extra-low phase noise Local Oscillator * Built-in Roofing Filters, 15 kHz, 6 kHz, 2.7 kHz, and 500 Hz (270 Hz optional) * 7 in. TFT color display * High-speed Independent Band Scope * Animated Meter display toggles between TS-930 and TS-940 meter styles at a touch! * External display connector (DVI-I) * ANT output for external receiver * RF Attenuator (OFF/6/12/18dB) * Advanced DSP Noise Reduction function * Heavy-duty design delivers transmitter performance and endurance operation * Built-in high-speed automatic antenna tuner for rapid band changes * Encode and decode built-in for CW / PSK / RTTY * 120 channel memory * 3 PF keys (preferred function) * Screen capture * Remote operation via direct LAN connection (see KNS in owner's manual) * Multiple USB connections * KEYPAD jack (add up to 8 external PF keys) Place your order here for the Kenwood TS-890S.
( 33 )
$4,399.95
Instant Rebate
Yaesu FTDX-101D HF/50MHz 100W Transceivers
The Yaesu FTDX-101D HF/50MHz 100W Transceiver brings new excitement and surprising advances in a particularly attractive package. Its unique hybrid narrow-band SDR configuration achieves unsurpassed critical dual receiver performance. The Direct Sampling SDR section provides astounding visual awareness of activity across the band as well as detail around the operating frequency on each receiver. The large, precision color touch-panel display also features gorgeous dual multi-function meters, dual frequency readouts and multi-functional touch controls, plus the exclusive 3DSS - Three Dimension Spectrum Stream waterfall and panadapter scope. The entire class-leading screen of the FTDX-101D may be displayed on a user supplied external monitor! Ergonomically arranged transceiver controls are centered about a large, tactile and weighted VFO. The Main knob is enhanced with the MPVD; Multi-Purpose VFO Outer Dial which controls the sub receiver VFO, clarifier, VC-Tune RF Preselector**, VFO fine tuning and a user defined Custom Selection function. A welcome feature, each function of the identical Main (A) and Sub (B) receivers have separate independent front panel controls; AF and RF gain, Shift, Width, Notch, Contour, Digital Noise Reduction and APF. Built for the serious contester, dual LED pushbuttons comprise the Active Band Indicator for each receiver, enabling effortless and rapid independent band changes. Adjustments of mode-specific settings and levels are displayed and accomplished quickly with the press-and-turn Multi-function selector. Every important control is strategically placed and readily available for maximum flexibility and ease of operation with this remarkable transceiver. Some of the impressive features and specs of the Yaesu FTDX-101D include: * High-Class 160 to 6 Meters 100 Watt Transceiver for all modes; SSB, AM, FM, CW, RTTY and Digital. * Superb and astonishing close-in dynamic range performance (120 dB RDR at 2 kHz spacing, 14 MHz, 500 Hz) * Hybrid SDR technology: Direct Sampling and NBW (narrow bandwidth) SDR * 9 MHz IF Roofing Filters with excellent Shape Factor * 400 MHz HRDDS (High Resolution Direct Digital Synthesizer) *Ultra-low phase noise 1st Local Oscillator * Completely independent dual receivers with general coverage receive *High-Q VC-Tune Front-End RF Preselector for maximum attenuation of -70 dB (Built-In Main RX, Option for Sub RX) * Yaesu renowned interference reduction system with 32 bit IF DSP and digital noise reduction (DNR) and DSP Auto Notch Many are aware that the iconic model number "101" comes from the legendary and best-selling FT-101 series produced in the 1970s. "The Legend Continues" as this HF transceiver carries the tradition of high quality known of the original 101 series. It is certain to satisfy the demands of a wide variety of Amateur Radio enthusiasts. Today, you may order the Yaesu FTDX-101D HF/50MHz 100W Transceiver from DX Engineering. Click 'More Detail' below to see additional information about the FTDX-101D HF/50MHz 100W Transceivers. The 200 watt version, Yaesu FTDX-101MP is displayed separately in the Base Transceivers area. **NOTE: The Yaesu FTDX-101D has the VC Tune Preselector installed in the MAIN receiver and 12 kHz, 3 kHz and 600 Hz roofing filters installed in the MAIN and SUB receivers. A second VC Tune Preselector is optional for the SUB receiver and four optional roofing filters, 300 Hz and 1.2 kHz for the MAIN and SUB, are available only by transceiver special order. Installation and calibration are done by Yaesu only with a $30 per item labor charge when options are special ordered with the transceiver. The standard model FTDX-101D shipped from stock cannot be internally upgraded by the user. Call DX Engineering to order your standard or custom built FTDX-101D.
( 53 )
$3,749.99
Perseus22 4-Channel Direct Sampling Receiver
Perseus22 4-Channel Direct Sampling Receiver offers dual continuous frequency coverage from 10 kHz to 225 MHz with typical image rejection greater than 70dB, and excellent dynamic range on four independent receivers, two VLF-HF and two VHF, each with a dedicated antenna input. All four receiver channels are synchronously sampled by a high signal to noise ratio (s/n or SNR), 14-bit A/D converter and processed by a software defined digital down converter, implemented on an FPGA. The four output channels are routed to the host PC via the USB 3.0 controller, achieving synchronized true diversity reception and wide bandwidth IF applications. Supported modes are AM, SAM, QSAM, CW, CWrev, RTTY, RTTYrev, LSB, USB, IQ, FM, WFM (RDS in development), and DAB+. Presently available sample rates are 250, 500, 1000 and 2000 kSps, with the maximum span currently displayed at 1600 kHz. The frequency coverage of the Perseus22 is split-up into pairs of receiving channels (slices), which mean two receivers for the VLF-HF frequency range of 10 kHz to 70 MHz, and two receivers for VHF range from 70 MHz to 225 MHz. Each receiving pair is capable of diversity processing, which can reduce noise by orders of magnitude. Each of the four receiver channels include an analog RF front end equipped with attenuators, preselection filters and amplifiers. The receiver enclosure is machined from solid aluminum and finished with a fine, non-reflective black surface treatment. Perseus22 SDR multichannel software was created by a team formed by Elad and Microtelecom developers, with years of experience in developing software for Digital Signal Processing (DSP). This software takes advantage of an agile GUI interface platform, integrating past DSP design experience to accommodate future modules for demodulators and decoders. This advanced software features a simple and intuitive graphical user interface, simultaneously efficient and complete. The GUI is built using OpenGL, making it possible to leverage the GPU for everything related to the rendering of controls and windows. This allows the CPU to be tasked exclusively with digital processing of the radio signals, to offer revolutionary receiving features and capabilities. Presently this is a Windows software application. Thanks to the libraries used, Perseus22 management software can be implemented on other operating systems such as Linux, MacOS and even Android, with little effort. Perseus22 is shipped with: • AC to DC high-quality medical-grade switch mode power supply GSM40A09-P1J (with AC power cord); 9 VDC 4.45A Output 2.1 x 5.5mm; 80-264 VAC input, IEC320-C14 • USB 3.0 A to B cable, length 76 in. (2 m) • 4 SMA-BNC adapters
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$2,579.99
ACOM 1003 HF + 6 meter Linear Amplifiers
ACOM 1003 HF + 6 meter Linear Amplifiers are self-contained, full-featured units that cover all amateur bands from 1.8 MHz to 54 MHz. With less than 80 watts input, they deliver 1000 watts PEP output or 900 W continuous carrier using a single ceramic/metal power triode 3CX800A7. ACOM 1003 models have two new front panel relay switches, one to select from three antenna outputs and another to quickly engage and disengage an input attenuator for rapid tuning without transceiver adjustment. A multitude of advanced features in this compact and affordable amplifier validates its admirable design. ACOM 1003 Amplifiers are available from DX Engineering in three versions: •AOM-1003-240 Tested with a pre-installed NEMA 6-15P for 240 VAC at 8.5A (10A fuses) •AOM-1003-120 Tested with a pre-installed NEMA 5-15P for 120 VAC at 15A+ (20A fuses) •AOM-1003 Install your own plug, reset voltage taps internally, 10A fuses supplied The ACOM1003 HF+6M Linear Amplifier is amazingly easy to operate! •True Resistance Indicator (TRI) bar scale meter: Simplifies accurate adjustment of plate-load impedance controls. •Two-line OLED Display: Provides a peak power bar graph meter, 18 unique operational parameters and text status messages. •External Tuner Not Needed: For antenna SWR up to 3:1, even at 1000 W output. •Front-panel Input Attenuator: Instantly reduces input power when tuning, eliminating the need for transceiver power adjustments. •Silent HF Reed Relay: Enables Fast T/R switching for QSK CW. Additional features and protection: •Operator selectable class AB2 mode for best linearity in SSB mode or class B for reduced plate dissipation in continuous digital modes. •Operator selectable Full 100% or 50% power output with no efficiency deterioration. •Auto controlled air flow tube cooling. •Continuous monitoring of amplifier parameters and tube protection. •Able to monitor 18 operator-selectable amplifier parameters on the display. •Unique ACOM protection for the bands switch. •Factory tuned input lowpass filters for best linearity and input SWR less than 1.3 in each amateur radio band. -OLED comment display – Two-line OLED display with peak-reading forward-output power bar graph and 18 operator-selectable amplifier parameters on the display. -Three antenna outputs – Three antenna outputs are selectable by a push-button on the front panel. -Less noise in the shack – HF antenna reed relay for a virtually silent, QSK compatible CW operation. -Transceiver-independent – The amplifier operates without special signals from the transceiver - "Ground on TX" (PTT) and 50-80 W RF drive power are sufficient. -Single tube operation – Uses a single ceramic/metal power triode 3CX800A7 in cathode driven, grounded grid configuration. -Tube protection – Continuous monitoring of amplifier parameters and tube protection. -Output RF arc protection – Original ACOM HF arc protection at the output, or at the antenna. -Power supply – Single phase mains power, 90-132 / 180-264 VAC at 50-60 Hz, power consumption at rated output – up to 2000 VA @ 240 VAC. Internal taps for 8 nominal AC mains voltages: 100, 110, 120, 200, 210, 220, 230 & 240VAC, ±10% tolerance), 50-60 Hz, single phase. -Easy maintenance – Non-volatile memory with SIGNATURE records eight of the most recent Serious (Hard Fault) Protection events. -Documentation – The User's Manual is available as a PDF file only. The latest version is available under the Download tab (see above). ACOM creates and distributes its documentation in ENGLISH language only.
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$4,899.99
Alpha Antenna Digital Mode MiniLoop Antennas
Alpha Antenna Digital Mode MiniLoop Antennas are wideband magnetic loop antennas that can be deployed in two different physical arrangements to optimize efficiency. They provide coverage ranging from 0 to 1,500 miles (2,500 km) within the frequency range of 10 to 54 MHz, exhibiting the following functional characteristics: * RX with low noise characteristics from 1.8MHz through 1GHz and higher frequencies. * TX support without a tuner for Digital Modes from 10 to 54MHz.
Not Yet Reviewed
$2,300.00
DX Engineering Receive Eight Circle V3 Complete Array Systems
DX Engineering Receive Eight Circle V3 Complete Array Systems, DXE-R8C-SYS-V3, provide outstanding reception of weak distant signals. This eight-direction switchable array uses a special end-fire/broadside time delay phasing of eight stealthy 8.5 ft. (2.6m) active vertical elements to cover multiple HF Amateur bands. The Eight Circle pattern rejects extraneous signals and noise far better than Beverages and other arrays. With appropriately located elements, the Receive Eight Circle Complete Array System is the ultimate high-performance directional receive antenna for HF Amateur, SWL or AM DXing. –––––– Click or tap the title of a listed item for an Overview with a complete description, Specifications, Required and Suggested Parts. Links to instruction manuals and charts appear in Documentation.
Not Yet Reviewed
$3,447.34
PowerFilm Foldable Solar Panels
PowerFilm Foldable Solar Panels are perfect for keeping your batteries topped off when operating portable, or for any activity where you want to keep batteries charged without the noise of a generator. The weather resistant, nylon fabric on the back side of the panels provides protection regardless of if the panel is in use or whether it's presently being stored. While the cloth backing is weather resistant, if it gets wet it is best to let it dry before you fold the panel up and put it away. Grommets on the corners of the panel help secure it in place to prevent damage in high winds. These high tech thin and flexible panels will continue to provide output even when damaged. They generate electricity even in cloudy, shady, and hazy environments and outperform other solar panels in low-light environments. A charge controller is not required if the battery capacity is 100x greater (or more) than the panel output. For example, a 100Ah battery would not need a charge controller if the panel output is 1A or less. If a charge controller is required, it should be sized according to the output of the panel. Available in a range of output wattages from 20 to 220 Watts there's sure to be an option to meet your specific needs.
Not Yet Reviewed
$2,059.00
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$4,899.00
Samlex EVOLUTION Series Inverter-Chargers
EVOLUTION Series Inverter-Chargers include a pure sine wave inverter, adaptive battery charger and transfer relay – All in ONE unit. Samlex Evolution Series Inverter-Chargers provide reliable AC power wherever it's needed. They're great for use with boats, RVs, remote cabins and specialty vehicles; as well as alternative energy, back-up and emergency power applications. Using state-of-the-art technology, Samlex EVOLUTION (EVO) inverter/chargers operate at 165 million instructions per second with lightning fast load and response times. They have 9 points of physical protection monitoring (being scanned up to 10,000 times per second) to detect fault conditions and protect themselves in a vast range of adverse environments. * AC Inputs: Two separate AC inputs – one for grid (priority #1), one for generator (priority #2), connect simultaneously, no need to reconfigure when different power sources are available. Generator Input is specifically designed to have more tolerance for distortion, prevents unnecessary "rejection of AC input and switch to inverter" by tolerating distorted wave forms that can be produced by generators. Each AC input is programmable for voltage and frequency. User determines the min and max thresholds to switch from Grid or Generator to Inverter. Generator start can be initiated by "Status Relay" contact, can be programmed to activate when grid is lost. * Solar Input Connect a solar charge controller directly to the EVO though the Battery Charger external DC input. Seamlessly integrate solar charging. ONLINE Mode can be used to prioritize Batteries/Inverter over the grid, ideal for operating primarily on solar power (when the grid is available, but might be costly). * Battery Charger 3 or 4 stage charging with Equalization (must be manually initiated). Adaptive algorithm is used during Bulk to assess battery condition. Subsequent stages are then based on the condition of the battery rather than pre-set time periods for Absorption and Float. Prevents unnecessary charging, extends the life of batteries. Programmable; set battery voltage thresholds to initiate charging. * Transfer Switch Zero transfer time switched from Inverter to Grid. When the grid comes on, the inverter synchronizes with the wave form and then transfers instantly at zero crossing. Less than 16ms transfer when going from Grid to Inverter. When grid is lost, the transfer relay switches to inverter at the correct place in the wave form, the transfer takes less than 16ms. * Surge Capacity (Power Boost) The EVO has 3X surge power! Additionally, the EVO has large power overload allowances available for long periods of time. Increased inverter capacity means you can size your inverter smaller to handle heavy surge loads, reducing costs. * State-of-the-Art Technology EVOs operate at 165 million instructions per second producing lightning fast load and response times. They are practically indestructible because of 9 physical points of protection monitoring being scanned up to 10,000 times per second for adverse conditions. EVOs will detect fault conditions and initiate a healthy shutdown before any product damage can be done. An EVO-RC remote control (sold separately) may be used to capture detailed EVO performance data. It records all detected faults and the conditions leading up to faults. Data is stored on a removable 16GB SD Card (in the remote). Use data to analyze trends for more efficient use of system resources. EVOs use five temperature sensors placed throughout the unit to determine operation of 2 speed controlled cooling fans. Reduces unnecessary fan noise and energy consumption by only running when and where the fans are needed. Samlex EVOLUTION Series Inverter-Chargers intelligently integrate an AC Inverter, Battery Charger and Transfer Relay into an advanced and affordable off-grid power solution. They are now available from DX Engineering!
Not Yet Reviewed
$2,097.20
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$2,559.90
PXdragon DR-9400 PACTOR Modems
PXdragon DR-9400 PACTOR Modems are the most advanced and powerful device of its kind in the world, ensuring reliable and efficient email and data transmission via HF and VHF. Whether in amateur or maritime radio, or crisis communication, stable data connections are crucial. This device represents the latest generation of professional PACTOR modems, continuing the success story of the DR series, confirming the long-term prospects and further development of PACTOR technology for worldwide amateur radio, maritime radio, and government and emergency radio applications. WHEN COMMUNICATION MATTERS, RELIABILITY IS THE ONLY THING THAT COUNTS. Developed by SCS and distributed by WiMo, the PXdragon DR-9400 supports PACTOR-1/-2/-3/-4, Packet Radio and APRS with 1200 bps AFSK and 9600 bps 3RUH and Robust Packet Radio. Reception modes such as Weather-FAX (RX) and RTTY (RX) and an integrated PACTOR monitor expand the range of possible applications. Its compact design makes the DR-9400 ideal for stationary and portable applications—perfect for email messaging, file synchronization, telemetry, or APRS beaconing. Modern signal processing, versatile interfaces, and robust protocols make the PXdragon DR-9400 a reliable solution for data-oriented radio operation, even in poor propagation conditions. Pre-assembled cables for common transceivers are available for easy operation, as well as customized solutions for every application. Key features • Multi-stage modulation methods (PSK, QAM) for maximum efficiency • Compatible with all older versions (PACTOR 1 to 4) • Secure connection with optional encryption • Automatic adjustment to signal strength and signal-to-noise ratio • EasyTransfer function for convenient file exchange via drag-and-drop • Direct integration with software such as Winlink Express, Airmail, and AlphaMail • High data rate: up to 10,500 bps with PACTOR-4 • Automatic repeat requests (ARQ) for 100% data integrity • Multiband support: operation on all shortwave bands (2–30 MHz) Choose between two versions of the DR-9400, with or without the WiFi and Bluetooth Dongle and license key. Add the premade control and audio interface cables listed in "Recommended Parts" that match your HF or VHF radio equipment for fast PACTOR mode operations.
Not Yet Reviewed
$2,089.99
SSB Electronic Mast-Mount Preamplifiers
SSB Electronic Mast-Mount Preamplifiers are low-noise, band-specific, weatherproof preamplifiers designed for installation near VHF and UHF antennas. Available for the 6 meter, 4 meter (Europe), 2 meter and 70 cm Amateur bands, these preamplifiers are installed in-line, at the antenna. They improve receive performance by amplifying weak signals before feedline loss can reduce them. Powering and Sequencing Most models can be powered remotely through the coaxial cable, and many modern transceivers include a built-in bias-tee for mast-mounted preamplifiers. If the transceiver or transverter system does not provide power, an external bias-tee or remote-feed unit is required. • The DCW-15 and DCW 2004B provide sequencing support. • The DCC-12 does not provide sequencing. • SP series preamplifiers include a built-in RF VOX circuit for safe operations up to 100 watts; for transmit power above 100 watts, PTT control with a sequencer is required. Some models require a direct DC connection (UHF female). • -S series preamplifiers feature lower current signal relays with slightly higher insertion loss. • MHP and MHP-S series preamplifiers versions require sequencer control (see below). Signal Filtering and Switching Built-in helix filters effectively reject out-of-band signals, helping maintain clean receive performance. Real coaxial relays handle transmit/receive switching, resulting in very low insertion loss (except for SP-S series). And each amplifier is carefully calibrated at multiple test stations before packaging. Dual-Band Models Dual-band models include built-in diplexers, so they require only one connection for the multiband antenna and one connection for the station coaxial cable. MHP Series for Demanding Stations The MHP series is designed for demanding operating environments and provides higher gain for weak-signal modes such as Tropo-DX and EME. With maximum transmit power handling of 1500 watts on 6m and 2000 watts on 2m and 70cm, these preamplifiers are well suited for contesting, DX, and EME operation. Important Note for MHP Models Bias-tee power (on the RF coax) is not supported in most MHP Preamplifiers. They must be powered directly using the appropriate cable size for the required distance, and they may only be operated with a correctly wired sequencer, such as the DCW 2004 B Sequence Controller. Transmitting high power without a directly wired sequencer is likely to damage the MHP preamplifier. Housing and Hardware All SSB Electronic Mast-Mount Preamplifiers are supplied in UV-resistant, weatherproof housings with Type N female connectors. Hot-dip galvanized clamps and stainless steel mounting hardware are included. See individual models for band coverage and detailed specifications.
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$2,636.99
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$2,888.99
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ICOM IC-9700 VHF/UHF/1.2 GHz Transceiver
ICOM IC-9700 VHF/UHF/1.2 GHz All-Mode Direct Sampling Transceiver features advanced technology. Built with the VHF/UHF weak signal operator in mind, the IC-9700 has an RF direct sampling receiver for the 2m and 70cm bands, and a single down conversion IF from 311 – 371MHz for the 23cm band. This combination design provides a quiet receiver using Icom's DSP technology. This is an excellent all-mode transceiver with which to cover all operating facets of the 2 meter, 70 cm and 23 cm bands! Features for the ultra-advanced Icom IC-9700 include: * Direct-Sampling SDR design * RF Output of 100 Watts on 2m (144-148 MHz), 75 Watts on 70cm (430-450 MHz) and 10 Watts on 23 cm (1240-1300 MHz) * All modes including FM, SSB, AM, CW, RTTY, Digital, D-Star Digital Voice and Digital Data * Digital Data (DD) mode provides 128 kbps data communication * D-STAR Terminal and Access Point mode (RS-MS3A/W) * Dual D-STAR receive (decodes two voice streams simultaneously) * Main and Sub RX * Full Duplex operation/ Dual Watch (no V/V or U/U Capability) * Smooth satellite operations with normal/reverse tracking and 99 satellite channels * Supports 2 wave simultaneous reception (different bands/same or different mode) * High definition Real-Time 4.3 inch TFT display * Touchscreen interface (LCD touch-screen control) * Main or Sub-Band Scope (Center/Fix mode +/-500kHz Center Mode) * Audio Scope * CW full break-in * 0.5ppm frequency stability * Voice Recording/playback function (SD Memory Card) * Ethernet Port - Internal Server for Internet remote control with optional RS-BA1 software * USB audio and control connection * DR Memories: 2,500 * Antenna connectors: 2m SO-239, 70cm Type N, 1.2 GHz Type N More information at the More Details link below. Explore new horizons and space communications with the ICOM IC-9700 VHF/UHF/1.2 GHz Transceiver.
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$2,099.95