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6 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.
( 4 )
$2,499.00
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
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
( 1 )
$2,579.99
Manufacturer Rebate
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.
( 126 )
$2,099.95