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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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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 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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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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Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden. Nog geen lid? Klik hier om een lidmaatschap af te sluiten. Project-update: ESP32-gebaseerde energiemeterwe gaan verder met het prototype Optimalisatie van balkon PV-centralesoverwegingen, interessante feiten en berekeningen ESP32 met OpenDTU voor balkoncentralesgegevens van kleine omvormers via MCU’s uitlezen Regelbare lineaire labvoeding0...50 V / 0...2 A + dubbele symmetrische voeding Energieopslag – vandaag en morgeneen vraaggesprek met Simon Engelke 2024: een AI-odysseehet houdt nog lang niet op Bluetooth LE op de STM32meetwaarden op afstand uitlezen Mensvriendelijk slim keuken-voorraadsysteem MAUI: programmeren voor PC, tablet en smartphonehet nieuwe framework in theorie en praktijk ChatMagLevkunstmatig intelligente levitatie Eenvoudige PV-regelaarbouw je eerste, volledig functionele PV-energiebeheersysteem Koude-kathode-buizenvreemde onderdelen Uit het leven gegrepennostalgie Alle begin......bekijkt de FET CAN-bus voor de Arduino UNO R4: een tutorialtwee UNO R4’s nemen de bus! Elektor infographicvoeding en energie Vergelijking van vermogensdichtheid en vermogensefficiëntie Aluminium elektrolytische condensatorenstoringspotentieel in audiotechnologie USB testen en metenmet de Fnirsi FNB58 De Pixel Pump pick&place-tooleenvoudiger handmatige assemblage van SMT-printen Oost West Lab Bestnog niet zo lang geleden, in een land heel ver van hier... “In de wereld van ethiek in elektronica kunnen zelfs kleine stappen een aanzienlijke invloed hebben.” Ethiek in elektronicade OECD Guidelines en het Lieferkettensorgfaltspflichtengesetz Chadèche: slimme NiMH-(ont)laderlezersproject in het kort Project 2.0correcties, updates en brieven van lezers

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IMAGE PROCESSING WITH THE NVIDIA JETSON NANO (PART 2)Image Recognition Using Edge Impulse ELEKTOR JUMPSTARTER NEWSUpcoming Campaigns AN OPEN-SOURCE GPS TRACKING PLATFORMTraccar Maps Vehicle Tracking Without the Need for a Third-Party Cloud Server JOY-IT LCR-T7 MULTI-FUNCTION TESTERTesting Passives, Discrete Semiconductors and IR Remote Controls NOISE SYNTHESIZERFrom Noise to Music with the PRBSynth1 STARTING OUT IN ELECTRONICSEasier than Imagined! ... Continuing with the Coil UNDERSTANDING THE NEURONS IN NEURAL NETWORKS (PART 2)Logical Neurons ISSUES WITH SECURITY? FIGHT FIRE WITH FIRE!Flashbulb-Protected Analogue Memory Add-on For the Tamper-Evident Box LCR METER POSTER BLUETOOTH BEACONS IN PRACTICEBeacons Light the Way Ahead C PROGRAMMING ON RASPBERRY PICommunicating over Wi-Fi (Sample Chapter) EMC PRE-COMPLIANCE TEST FOR YOUR DC-POWERED PROJECT (PART 2)The Hardware and How to Use It HANDS ON THE PARALLAX PROPELLER 2 (PART 5)Inside the Smart Pin MODBUS OVER WLAN (PART 1)Hardware and Programming HOMELAB TOURSWhere the Junior Computer Is Brought to Life Again BUILD YOUR OWN HIGH-PRECISION CALIBRATOR-10 V to +10 V, 0 to 40 mA, 0.001% ARDUINO NANO RP2040 CONNECTRaspberry Pi RP2040 + Wi-Fi + Bluetooth THE PHYSICAL BODY OF ARTIFICIAL INTELLIGENCE ERR-LECTRONICSCorrections, Updates and Readers’ Letters CREATE GUIS WITH PYTHONIntroducing guizero CO2 METER KIT FOR THE CLASSROOMAn ESP8266-Based Device from the University of Applied Sciences Aachen NOSTALGIC MK484 MW/LW RADIO...Always Fun to Build! ELEKTOR @ 60Let There Be Light! HEXADOKUThe Original Elektorized Sudoku

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Elektor Magazine EN November/December 2020 (PDF)

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Elektor Magazine EN May/June 2021 (PDF)

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Elektor Magazine EN May/June 2020 (PDF)

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Elektor Magazine EN March/April 2020 (PDF)

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Elektor Magazine EN July/August 2020 (PDF)

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