Radio | SDR

RTL-SDR is an affordable dongle that can be used as a computer based radio scanner for receiving live radio signals in your area. This particular dongle includes a R820T2 tuner, a 1 PPM temperature compensated oscillator (TCXO), SMA F connector. It features an aluminium case with passive cooling via a thermal pad. Moreover, there is a software switchable bias tee circuit, supplementary ESD protection, lower overall noise and built-in direct sampling for HF reception. This device can receive frequencies from 500 kHz to 1.7 GHz and has up to 3.2 MHz of instantaneous bandwidth (2.4 MHz stable). Note: RTL-SDR dongles are RX only. You can use this kit either for terrestrial or satellite reception just by changing the orientation of the antenna. Thanks to the included mounts and extension cables it is possible to temporarily place the antenna outside for a better reception. Other potential applications are general radio scanning, air traffic control, public safety radio, ADSB, ACARS, trunked radio, P25 digital voice, POCSAG, weather balloons, APRS, NOAA APT weather satellites, radio astronomy, meteor scatter monitoring etc. Included RTL-SDR V3 Dongle (R820T2 RTL2832U 1PPM TCXO SMA) 2x 23 cm to 1 m telescopic antenna 2x 5 cm to 13 cm telescopic antenna Dipole Antenna Base with 60 cm RG174 extension cable 3 m RG174 extension cable Flexible Tripod Mount Suction Cup Mount Downloads Datasheet Quick Start Guide SDR# User Guide Dipole Antenna Kit Guide

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HackRF One is a Software Defined Radio (SDR) peripheral capable of transmission or reception of radio signals from 1 MHz to 6 GHz. Designed to enable test and development of modern and next generation radio technologies, HackRF One is an open source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation. Specifications 1 MHz to 6 GHz operating frequency Half-duplex transceiver Up to 20 million samples per second 8-bit quadrature samples (8-bit I and 8-bit Q) Compatible with GNU Radio, SDR and more Software-configurable RX and TX gain and baseband filter Software-controlled antenna port power (50 mA at 3.3 V) SMA female antenna connector SMA female clock input and output for synchronization Convenient buttons for programming Internal pin headers for expansion Hi-Speed USB 2.0 USB-powered Open source hardware HackRF One is test equipment for RF systems. It has not been tested for compliance with regulations governing transmission of radio signals. You are responsible for using your HackRF One legally. Included 1x HackRF One SDR 1x Plastic enclosure 1x micro-USB cable Note: An antenna is not included. ANT500 is recommended as a starter antenna for HackRF One. Downloads Documentation GitHub Source code and hardware design files

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RTL-SDR is an affordable dongle that can be used as a computer-based radio scanner for receiving live radio signals between 500 kHz and 1.75 GHz in your area. The RTL-SDR V4 offers several improvements over generic brands including use of the R828D tuner chip, triplexed input filter, notch filter, improved component tolerances, a 1 PPM temperature compensated oscillator (TCXO), SMA F connector, aluminium case with passive cooling, bias tee circuit, improved power supply, and a built in HF upconverter. RTL-SDR V4 comes with the portable dipole antenna kit. It is great for beginners as it allows for terrestrial and satellite reception and easy to mount outdoors and designed for portable and temporary outside usage. Features Improved HF reception: V4 now uses a built-in upconverter instead of using a direct sampling circuit. This means no more Nyquist folding of signals around 14.4 MHz, improved sensitivity, and adjustable gain on HF. Like the V3, the lower tuning range remains at 500 kHz and very strong reception may still require front end attenuation/filtering. Improved filtering: The V4 makes use of the R828D tuner chip, which has three inputs. The SMA input has been triplexed input into 3 bands: HF, VHF and UHF. This provides some isolation between the 3 bands, meaning out of band interference from strong broadcast stations is less likely to cause desensitization or imaging. Improved filtering x2: In addition to the triplexing, the open drain pin on the R828D can be also used, which allows to add simple notch filters for common interference bands such as broadcast AM, broadcast FM and the DAB bands. These only attenuate by a few dB, but may still help. Improved phase noise on strong signals: Due to an improved power supply design, phase noise from power supply noise has been significantly reduced. Less heat: Another advantage of the improved power supply is low power consumption and less heat generation compared to the V3. Included 1x RTL-SDR V4 dongle (R828D RTL2832U 1PPM TCXO SMA) 2x 23 cm to 1 m telescopic antenna 2x 5 cm to 13 cm telescopic antenna 1x Dipole antenna base with 60 cm RG174 1x 3 m RG174 extension cable 1x Flexible tripod mount 1x Suction cup mount Downloads Datasheet User Guide Quick Start Guide SDR# User Guide Dipole Antenna Guide

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ANT500 from Great Scott Gadgets is a telescopic antenna designed for operation from 75 MHz to 1 GHz. Its total length is configurable from 20 cm to 88 cm. ANT500 is constructed of stainless steel and features an SMA male connector, rotating shaft, and adjustable elbow. ANT500 is a 50 ohm general purpose antenna. It is the perfect first antenna for use with HackRF One.

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Program and build Raspberry Pi based ham station utilities, tools, and instruments The improved RTL-SDR V4 allows you to receive radio signals between 500 kHz and 1.75 GHz from stations utilizing different bands including MW/SW/LW broadcast, ham radio, utility, air traffic control, PMR, SRD, ISM, CB, weather satellite, and radio astronomy. The book Raspberry Pi 5 for Radio Amateurs gives extensive coverage of deploying the RTL-SDR kit through the use of a Raspberry Pi 5. This bundle contains: RTL-SDR V4 (incl. Dipole Antenna Kit) (normal price: €65) Raspberry Pi 5 for Radio Amateurs (normal price: €40) RTL-SDR V4 (Software Defined Radio) with Dipole Antenna Kit RTL-SDR is an affordable dongle that can be used as a computer-based radio scanner for receiving live radio signals between 500 kHz and 1.75 GHz in your area. The RTL-SDR V4 offers several improvements over generic brands including use of the R828D tuner chip, triplexed input filter, notch filter, improved component tolerances, a 1 PPM temperature compensated oscillator (TCXO), SMA F connector, aluminium case with passive cooling, bias tee circuit, improved power supply, and a built in HF upconverter. RTL-SDR V4 comes with the portable dipole antenna kit. It is great for beginners as it allows for terrestrial and satellite reception and easy to mount outdoors and designed for portable and temporary outside usage. Features Improved HF reception: V4 now uses a built-in upconverter instead of using a direct sampling circuit. This means no more Nyquist folding of signals around 14.4 MHz, improved sensitivity, and adjustable gain on HF. Like the V3, the lower tuning range remains at 500 kHz and very strong reception may still require front end attenuation/filtering. Improved filtering: The V4 makes use of the R828D tuner chip, which has three inputs. The SMA input has been triplexed input into 3 bands: HF, VHF and UHF. This provides some isolation between the 3 bands, meaning out of band interference from strong broadcast stations is less likely to cause desensitization or imaging. Improved filtering x2: In addition to the triplexing, the open drain pin on the R828D can be also used, which allows to add simple notch filters for common interference bands such as broadcast AM, broadcast FM and the DAB bands. These only attenuate by a few dB, but may still help. Improved phase noise on strong signals: Due to an improved power supply design, phase noise from power supply noise has been significantly reduced. Less heat: Another advantage of the improved power supply is low power consumption and less heat generation compared to the V3. Included 1x RTL-SDR V4 dongle (R828D RTL2832U 1PPM TCXO SMA) 2x 23 cm to 1 m telescopic antenna 2x 5 cm to 13 cm telescopic antenna 1x Dipole antenna base with 60 cm RG174 1x 3 m RG174 extension cable 1x Flexible tripod mount 1x Suction cup mount Downloads Datasheet User Guide Quick Start Guide SDR# User Guide Dipole Antenna Guide Book: Raspberry Pi 5 for Radio Amateurs The RTL-SDR devices (V3 and V4) have gained popularity among radio amateurs because of their very low cost and rich features. A basic system may consist of a USB based RTL-SDR device (dongle) with a suitable antenna, a Raspberry Pi 5 computer, a USB based external audio input-output adapter, and software installed on the Raspberry Pi 5 computer. With such a modest setup, it is possible to receive signals from around 24 MHz to over 1.7 GHz. This book is aimed at amateur radio enthusiasts and electronic engineering students, as well as at anyone interested in learning to use the Raspberry Pi 5 to build electronic projects. The book is suitable for both beginners through experienced readers. Some knowledge of the Python programming language is required to understand and eventually modify the projects given in the book. A block diagram, a circuit diagram, and a complete Python program listing is given for each project, alongside a comprehensive description. The following popular RTL-SDR programs are discussed in detail, aided by step-by-step installation guides for practical use on a Raspberry Pi 5: SimpleFM GQRX SDR++ CubicSDR RTL-SDR Server Dump1090 FLDIGI Quick RTL_433 aldo xcwcp GPredict TWCLOCK CQRLOG klog Morse2Ascii PyQSO Welle.io Ham Clock CHIRP xastir qsstv flrig XyGrib FreeDV Qtel (EchoLink) XDX (DX-Cluster) WSJT-X The application of the Python programming language on the latest Raspberry Pi 5 platform precludes the use of the programs in the book from working on older versions of Raspberry Pi computers.

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This DIY kit (HU-017A) is a wireless FM radio receiver with a 4-digit 7-segment display. It operates within the global FM receiving frequency band of 87.0-108.0 MHz, making it suitable for use in any country or region. The kit offers two power supply modes, allowing you to use it both at home and outdoors. This DIY electronic product will help you understand circuits and improve your soldering skills. Features 87.0-108.0 MHz FM Radio: Built-in RDA5807 FM data processor with a standard FM receiving frequency band. The FM frequency can be adjusted using the F+ and F- buttons. Adjustable Volume: Two volume adjustment methods – button and potentiometer. There are 15 volume levels. Active & Passive Audio Output: The kit has a built-in 0.5 W power amplifier to drive 8 Ω speakers directly. It also outputs audio signals to headsets or loudspeakers with AUX interfaces, allowing personal listening and sharing of FM audio. Configured with a 25 cm dedicated FM antenna and a (red) 4-digit 7-segment display for real-time display of FM radio frequency. The transparent acrylic shell protects the internal circuit board. It supports dual power supply methods – 5 V USB and 2x 1.5 V (AA) batteries. DIY Hand Soldering: The kit comes with various components that need to be installed manually. It helps exercise and improve soldering skills, making it suitable for electronics hobbyists, beginners, and educational purposes. Specifications Operating voltage DC 3 V/5 V Output impedance 8 Ω Output power 0.5 W Output channel Mono Receiver frequency 87.0 MHz~108.0 MHz Frequency accuracy 0.1 MHz Operating temperature −40°C to +85°C Operating humidity 5% to 95% RH Dimensions 107 x 70 x 23 mm IMPORTANT: Remove the batteries when powering the radio over to USB. Included 1x PCB 1x RDA5807M FM Receiver 1x STC15W404AS MCU 1x IC Socket 1x 74HC595D Register 1x TDA2822M Amplifier 1x IC Socket 1x AMS1117-3.3 V Voltage Converter 18x Metal Film Resistor 1x Potentiometer 4x Ceramic Capacitor 5x Electrolytic Capacitor 4x S8550 Transistor 1x Red LED 1x 4-digit 7-segment Display 1x Toggle Switch 1x SMD Micro USB Socket 1x Radio Antenna 1x AUX Audio Socket 4x Black Button 4x Button Cap 1x 0.5 W/8 Ω Speaker 1x Red/Black Wire 2x Double-sided adhesive 1x AA Battery Box 1x USB cable 6x Acrylic Board 4x Nylon Column Screw 4x M3 Screw 4x M3 Nut 4x M2x22 mm Screw 1x M2x6 mm Screw 5x M2 Nut

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Elevate your audio experience with the Douk Audio P6 mini Tube Preamplifier, a perfect blend of modern connectivity, HiFi sound quality, and vintage charm. Whether you're an audiophile or just starting your journey into high-quality audio, this compact yet powerful preamp offers everything you need. Features Versatile Connectivity: Supports Bluetooth 5.0, USB (U-Disk), and RCA connections, making it compatible with a wide range of devices such as phones, TVs, tablets, projectors, and computers. Plays lossless audio formats (APE, FLAC, WAV, WMA) and MP3 directly from USB. HiFi Warm Sound: The 6A2 tube delivers rich, warm, and sweet tones, enhancing your listening experience. Upgradeable to various tubes (6*1N, JAN5725W, 6AK5, EF95) for personalized sound profiles. Customizable Sound: Independent treble and bass knobs allow precise tone adjustments, while the main volume control ensures seamless output. User-Friendly Design: Easily switch inputs with the selector and LED indicators – no need to reconnect cables repeatedly. Premium Build and Aesthetic: CNC-machined black aluminum alloy chassis for durability, complemented by a vintage orange tube glow for a stylish and nostalgic appeal. Specifications Audio input Bluetooth 5.0 / USB (U-Disk) / Stereo RCA Audio output Stereo RCA Maximum capacity U-disk supported 64 GB Highest sampling rate U-disk supported 24 Bit/192 K (FAT32) Formats U-disk supported MP3/APE/FLAC/WAV/WMA Treble/bass range ±6 dB Frequency response 20 Hz-20 kHz (±1 dB) Distortion ≤0.03% RCA input sensitivity 0 dBFS/1 V SNR ≥100 dB Working voltage DC 12 V Dimensions 97 x 118 x 33 mm Weight 337 g Included 1x Douk Audio P6 mini Tube Preamp 2x 6A2 Tube 1x Bluetooth Antenna 1x Power Adapter (12 V DC) 1x Manual

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ANT700 from Great Scott Gadgets is a lightweight telescopic antenna designed for operation from 300 MHz to 1100 MHz. Its total length is configurable from 9.5 cm to 24.5 cm. ANT700 is constructed of stainless steel and features an SMA male connector, rotating shaft, and adjustable elbow. ANT700 is a 50 ohm general purpose antenna. It is a perfect first antenna for use with HackRF One.

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Upgraded version II with Bluetooth function, larger battery capacity, built-in bandpass filter circuit and additional modes (HI-Z, LNA, 50 ohm) The ATS25 max-Decoder II is a portable, full-band MW/LW/SW/Ham/FM radio receiver based on the Si4732-A10 HF transceiver with DSP technology. The extremely compact and lightweight receiver has several built-in signal decoding modes including CW, RTTY, HELL, FT4, and FT8, making it an indispensable unit for radio amateurs. Features Rotary control or touch-screen user interface Automatic antenna input switching (BNC socket) Adjustable 500-6000 Hz bandwidth depending on modulation Real-time signal reception quality measurement and automatic search for radio stations based on received data 10 Hz minimum SSB frequency setting. 1 Hz BFO generator for precise tuning within ham radio bands RDS information decoding SSB reception Rapid frequency entry using two fast switching VFOs Unlimited station memory with grouping by reception range CB band channel mode Extensive setting and customization options Morse code decoding for Latin and Cyrillic alphabets DIGI modes decoding (RTTY, FELD-HELL, FT4, FT8) Decoded data saving, storage, and sending to a PC WiFi connectivity for updates and advanced decoding modes Updateable, ESP32-based, control software Supplied with preregistered licence key Specifications Display: 2.4-inch (net) color TFT with touch (320 x 240) Case material: aluminum alloy Built-in battery: 4000 mAh Lithium-ion (supports up to 6 hours of operation) Bluetooth Internal loudspeaker Headphones output (3.5 mm jack) VHF FM: 64-108 MHz with RDS MW: 520-1710 kHz LW: 153-500 kHz SW: 1730-30000 kHz Firmware version: 4.17 Air Power: USB-C Dimensions: 117 x 112 x 45 mm Weight: 380 g Included 1x ATS25 max-Decoder II Receiver 1x Wi-Fi antenna 1x Telescopic antenna 1x Stylus pen 1x USB-C charging/data cable 1x Dust cloth 1x Manual

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The short-wave technique has a very particular appeal: It can easily bridge long distances. By reflecting short-wave signals off the conductive layers of the ionosphere, they can be received in places beyond the horizon and therefore can reach anywhere on earth. Although technology is striving for ever higher frequencies, and radio is usually listened to on FM, DAB+, satellite or the Internet, modern means of transmission require extensive infrastructure and are extremely vulnerable. In the event of a global power outage, there is nothing more important than the short-wave. Amateur radio is not only a hobby, it’s also an emergency radio system! Elektor’s SDR-Shield is a versatile shortwave receiver up to 30 MHz. Using an Arduino and the appropriate software, radio stations, morse signals, SSB stations, and digital signals can be received. In this book, successful author and enthusiastic radio amateur, Burkhard Kainka describes the modern practice of software defined radio using the Elektor SDR Shield. He not only imparts a theoretical background but also explains numerous open source software tools.

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This set contains 10 semi-rigid RG402 adapter cables (SMA Male to SMA, BNC, Type N, Type F, UHF Male + Female adapters) with a length of 20 cm.

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This portable passive HF/VHF loop antenna is designed for low NF receivers. It also works with RTL-SDR in direct sampling mode if you enable RTL AGC. Signals can be boosted by using any external low cost HF amplifier, or even our wideband LNA. Specifications HF Portable & Flexible Receive Loop Antenna Covers HF frequencies (10 kHz to 30 MHz) Usable on FM/VHF up to 300 MHz as a folded Dipole Maximum power 250 mW Passive Design No Tuning required Low-Loss Wide-Band BALUN with 0.28 dB loss typ Connection: SMA Male on the end of the feedline Included 1x YouLoop T shaped low-loss wide-band BALUN 1x Coax Inverter Connector 2x Semi-rigid RG402 coax with SMA Male connectors – Branches (1 m) 1x Semi-rigid RG402 coax with SMA Male connectors – Transmission (2 m)

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Opera Cake is an antenna switching add-on board for HackRF One that is configured with command-line software either manually, or for automated port switching based on frequency or time. It has two primary ports, each connected to any of eight secondary ports, and is optimized for use as a pair of 1x4 switches or as a single 1x8 switch. Its recommended frequency range is 1 MHz to 4 GHz. When HackRF One is used to transmit, Opera Cake can automatically route its output to the appropriate transmit antennas, as well as any external filters, amplifiers, etc. No changes are needed to the existing SDR software, but full control from the host is available. Opera Cake also enhances the HackRF One’s use as a spectrum analyzer across its entire operating frequency range of 1 MHz to 4 GHz. Antenna switching works with the existing hackrf_sweep feature, which can sweep the whole tuning range in less than a second. Automatic switching mid-sweep enables the use of multiple antennas when sweeping a wide frequency range. Downloads Documentation GitHub

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The antenna allows for reception of L-band satellites that transmit between 1525-1660 MHz, such as Inmarsat, Iridium and GPS. Please note it is NOT for receiving weaker signals like HRPT and GOES which require a dish antenna. The patch comes with useful mounting accessories including a window suction cup, bendable tripod and 3M RG174 coax cable. The patch and active circuitry is enclosed in a weather proof enclosure. Links Inmarsat STD-C EGC AERO Satellite ACARS AERO C-Channel Voice Iridium Decoding GPS and GNSS Experiments

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YARD Stick One (Yet Another Radio Dongle) is a sub-1 GHz wireless transceiver IC on a USB dongle. It is based on the Texas Instruments CC1111. YARD Stick One can transmit or receive digital wireless signals at frequencies below 1 GHz. It uses the same radio circuit as the popular IM-Me. The radio functions that are possible by customizing IM-Me firmware are now at your fingertips when you attach YARD Stick One to a computer via USB. Features Half-duplex transmit and receive Official operating frequencies: 300-348 MHz, 391-464 MHz, and 782-928 MHz Unofficial operating frequencies: 281-361 MHz, 378-481 MHz, and 749-962 MHz Modulations: ASK, OOK, GFSK, 2-FSK, 4-FSK, MSK Data rates up to 500 kbps Full-Speed USB 2.0 SMA female antenna connector (50 ohms) Software-controlled antenna port power (max 50 mA at 3.3 V) Low pass filter for elimination of harmonics when operating in the 800 and 900 MHz bands GoodFET-compatible expansion and programming header GIMME-compatible programming test points Open source Downloads Documentation GitHub

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This exceptional GPS/GNSS antenna is designed for both GPS and GLONASS reception. The magnetic mount allows it to be easily mounted to a metal base such as a ground plate or car roof. The antenna is terminated with a 3m cable and standard SMA connector. Features Dimensions: 50x38x17mm Weight: 75g including 3m cable Frequency Range: 1575 - 1610MHz GPS Center Frequency: 1575.42MHz GLONASS Center Frequency: 1602MHz LNA Voltage: 3 to 5VDC LNA Gain: 28dB LNA Current: 10mA Termination Connector: SMA Impedance: 50Ω Right-hand polarization Cable Length: 3 meter

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This filter rejects signals between 88-108 MHz with around 50 dB or more attenuation. A broadcast FM band-stop filter is very useful for use with SDRs as in some areas broadcast FM signals can be so strong that they overload the SDR, causing very poor performance in other bands. You can tell if this is the case for you if you see images of BCFM stations or interference that looks like a WFM signal at other frequencies when you turn up the gain. The filter is based on a simple 7th order Chebyshev design. The 3 dB roll off is at 76 MHz and 122 MHz. 88 MHz is attenuated by almost 60 dB, and 108 MHz is attenuated by 45-50 dB. Outside of the pass band the insertion loss is practically zero below 500 MHz, less than 0.5 dB from 500 MHz – 1 GHz, and below 1.5 dB between 1-2 GHz. Between 2-3 GHz performance degrades slightly, but insertion loss remains below 1.5 dB for most frequencies. The filter can also pass up to 80 mA of DC current (probably can do more) and has negligible DC resistance. The filter comes in a 28 x 28 x 13 mm aluminum enclosure and uses female SMA connectors on each end. Included in the package is also a SMA male to SMA male straight barrel adapter.

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KrakenSDR is a phase-coherent software-defined radio with five RTL-SDRs KrakenSDR is a 5-channel, RX-only, software-defined radio (SDR) based on the RTL-SDR and designed for phase-coherent applications and experiments. Phase-coherent SDR opens the door to some very interesting applications, including radio direction finding, passive radar, and beam forming. You can also use KrakenSDR as five separate radios. KrakenSDR is an upgraded version of the previous product, KerberosSDR. It provides a fifth receive channel, automatic phase-coherence synchronization capabilities, bias tees, a new RF design with cleaner spectrum, USB Type-C connectors, a heavy-duty enclosure, upgraded open source DAQ and DSP software, and an upgraded Android app for direction finding. RTL-SDR KrakenSDR makes use of five custom RTL-SDR circuits consisting of R820T2 and RTL2832U chips. The RTL-SDR is a well-known, low-cost software-defined radio (SDR), but throw five units together and using them on the same PC will not make them 'phase coherent;' each one will receive signals at a slightly different phase offset from the others. This makes it difficult or impossible to achieve a high degree of precision when measuring relationships between signals that arrive at different antennas. To achieve phase coherence, KrakenSDR drives all five RTL-SDR radios with a single clock source, and contains internal calibration hardware to allow the phase relationship between channels to be measured precisely and corrected for. Additionally, the overall design of KrakenSDR works to ensure phase stability, with care taken in the areas of heat management, driver configuration, power supply, and external-interference mitigation. Features Five-channel, coherent-capable RTL-SDR, all clocked to a single local oscillator Built-in automatic coherence synchronization hardware Automatic coherence synchronization and management via provided Linux software 24 MHz to 1766 MHz tuning Range (standard R820T2 RTL-SDR range, and possibly higher with hacked drivers) 4.5 V bias tee on each port Core DAQ and DSP software is open source and designed to run on a Raspberry Pi 4 Direction-finding software for Android (free for non-commercial use) Applications Physically locating an unknown transmitter of interest (e.g. illegal or interfering broadcasts, noise transmissions, or just as a curiosity) HAM radio experiments such as radio fox hunts or monitoring repeater abuse Tracking assets, wildlife, or domestic animals outside of network coverage through the use of low power beacons Locating emergency beacons for search-and-rescue teams Locating lost ships via VHF radio Passive radar detection of aircraft, boats, and drones Traffic-density monitoring via passive radar Beamforming Interferometry for radio astronomy Specifications Bandwidth 2.56 MHz RX Channels 5 Frequency Range 24-1766 MHz Radio Tuner 5x R820T2 Radio ADC 5x RTL2832U ADC Bit Depth 8-bits Oscillator Stability 1 PPM Typical Power Consumption 5 V/2.2 A (11 W) Enclosure Type Heavy-duty CNC Aluminum Dimensions 177 x 112.3 x 25.9 mm Weight 560 g Included 1x KrakenSDR (fully assembled and installed) with Aluminum enclosure 1x Manual Required USB Type-C cable 5 V/2.4 A USB-C power supply Antennas Raspberry Pi 4 (for computing) Android phone/tablet with mobile-hotspot capabilities (with direction finding) Downloads Wiki Android App

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The Molex Flexible GNSS Antenna has a tiny footprint at 40.40mm x 15.40mm, while the adhesive pad is a bit bigger at 56.40mm x 20mm. Even better, the antenna is only 0.1mm thick (or about the thickness of a piece of paper). Remove the backing and stick this to any surface, or leave the backing on (be careful of the fragile U.FL connector). Features Cable length: 50mm Connector: U.FL Radiation Pattern: Omnidirectional Polarization: Linear Weigth: 0.466 g Mounting Style: Adhesive Protocol: BeiDou, Galileo, GLONASS, GPS Return Loss: < -8dB Peak Gain (Max): 1.1 dBi+ Efficiency: >74% Input Impedance 50 Ohms

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This clear acrylic case is the official case for the HackRF One board. It can replace the standard black plastic case of the HackRF One. Assembly Instructions Use a guitar pick or spudger to extract the HackRF One circuit board from the black plastic case. Insert one long screw into each corner of the bottom acrylic panel. Secure each long screw with a short (5 mm) spacer on the opposite side of the panel. Place the HackRF One circuit board (facing up) on top of the bottom panel, fitting the ends of the long screws through the corner mounting holes of the circuit board. Secure the circuit board with one long (6 mm) spacer in each corner. Place the top acrylic panel on top of the circuit board, aligning the cutouts with the circuit board’s expansion headers. Secure each corner with a short screw. Note: Do not overtighten! Hand-tighten only at every step.

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This is a set of five magnetic, telescopic whip antennas – with 100 MHz to 1 GHz tuning range – that can be used with KrakenSDR for direction finding. The magnets are strong and will be secure on the roof of a moving car. It includes a set of five two-meter, LMR100-equivalent coax cables that have been length matched for better performance.

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The G638 is a highly sensitive, digitally controlled device for detecting wireless signals between 300-2700 MHz. Compact and easy to use, it features audible and vibration alarms, and a 10-level LED sensitivity indicator to accurately identify signal strength. Capable of detecting 2G, 3G, 4G signals, wireless cameras (1.2G/2.4G & 5.8G), GPS trackers, bugs, and hidden cameras, the G638 effectively locates concealed spy equipment in rooms, cars, hotels, conference rooms, and other private areas. Its infrared camera detector quickly identifies hidden lenses via optical reflections. Specifications Frequency range 300-2700 MHz Detection dynamic range >73 db Indication mode 10 levels of LED light-emitting indicationVariable pitch sound indication Detection sensitivity <0.03 mW Detection range 5.8G: 15 m² (standard 10 mW)2.4G: 10 m² (standard 10 mW)1.2G: 10 m² (standard 10 mW) Mobile phone signal 2G/3G/4G 15 m² Power supply 1000 mAh 3.7 V Lithium battery Working current 60 mA Working time 8-12 hours Charging USB-C Material Aluminum alloy Included 1x Camera Detector with 3 antennas 1x Lens Detector 1x USB Cable 1x Manual

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This outdoor antenna made of fiberglass is optimized for the reception of ADS-B signals on the 1090 MHz frequency. The antenna consists of a half-wave dipole with 5 dBi gain, encapsulated inside a fiberglass radome with an aluminum mounting base. With a Raspberry Pi, an RTL-SDR and this antenna, you can receive position data from aircraft in your area for apps such as Flightradar24 or FlightAware. Specifications Frequency 1090 MHz Antenna type Dipole 1/2 wave Connector N female Installation type Mast Diam 35-60 mm (mounting bracket included) Gain 5 dBi SWR ≤1.5 Type of Polarization Vertical Maximum power 10 W Impedance 50 Ohms Dimensions 62.5 cm Tube diameter 26 mm Base antenna 32 mm Operating temperature −30°C to +60°C Included ADS-B antenna (1090 Mhz) Mast bracket (for installation on a 35 to 60 mm diameter mast)

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This 900 MHz radio version can be used for either 868 MHz or 915 MHz transmission/reception – the exact radio frequency is determined when you load the software since it can be tuned around dynamically. At the Feather 32u4's heart is at ATmega32u4 clocked at 8 MHz and at 3.3 V logic. This chip has 32 K of flash and 2 K of RAM, with built in USB so not only does it have a USB-to-Serial program & debug capability built in with no need for an FTDI-like chip, it can also act like a mouse, keyboard, USB MIDI device, etc. To make it easy to use for portable projects, we added a connector for any 3.7 V Lithium polymer batteries and built in battery charging. You don't need a battery, it will run just fine straight from the micro USB connector. But, if you do have a battery, you can take it on the go, then plug in the USB to recharge. The Feather will automatically switch over to USB power when its available. We also tied the battery thru a divider to an analog pin, so you can measure and monitor the battery voltage to detect when you need a recharge. Features Measures 2.0' x 0.9' x 0.28' (51 x 23 x 8 mm) without headers soldered in Light as a (large?) feather – 5.5 grams ATmega32u4 @ 8 MHz with 3.3 V logic/power 3.3 V regulator with 500 mA peak current output USB native support, comes with USB bootloader and serial port debugging You also get tons of pins – 20 GPIO pins Hardware Serial, hardware I²C, hardware SPI support 7x PWM pins 10x analog inputs Built in 100 mA lipoly charger with charging status indicator LED Pin #13 red LED for general purpose blinking Power/enable pin 4 mounting holes Reset button The Feather 32u4 Radio uses the extra space left over to add an RFM69HCW 868/915 MHz radio module. These radios are not good for transmitting audio or video, but they do work quite well for small data packet transmission when you ned more range than 2.4 GHz (BT, BLE, WiFi, ZigBee) SX1231 based module with SPI interface Packet radio with ready-to-go Arduino libraries Uses the license-free ISM band ('European ISM' @ 868 MHz or 'American ISM' @ 915 MHz) +13 to +20 dBm up to 100 mW Power Output Capability (power output selectable in software) 50 mA (+13 dBm) to 150 mA (+20 dBm) current draw for transmissions Range of approx. 350 meters, depending on obstructions, frequency, antenna and power output Create multipoint networks with individual node addresses Encrypted packet engine with AES-128 Simple wire antenna or spot for uFL connector Comes fully assembled and tested, with a USB bootloader that lets you quickly use it with the Arduino IDE. Headrs are also included so you can solder it in and plug into a solderless breadboard. You will need to cut and solder on a small piece of wire (any solid or stranded core is fine) in order to create your antenna. Lipoly battery and USB cable not included.

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