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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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An assortment of coloured wires: you know it's a beautiful thing. Six different colours of stranded wire in a cardboard dispenser box. Sit this on your workbench, and stop worrying about having a piece of wire around! Included 22 AWG 25 ft / Spool 6 Spools in Six Different Colors Colours are Red, Blue, Yellow, Green, Black, and White Dispenser Box

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The FNIRSI DSO153 is a highly practical and cost-effective handheld oscilloscope with a real-time sampling rate of 5 MSa/s, 1 MHz bandwidth, and complete triggering function (single, normal, auto). It can be used freely for both periodic analog signals and non-periodic digital signals, and can measure up to ±400 V voltage with an efficient one-click AUTO, which can display the measured waveform without complicated adjustments. Additionally, it features a function signal generator capable of outputting 14 types of signals (10 KHz). Equipped with a 2.8-inch 320x240 resolution HD LCD screen and a built-in 1000 mAh high-quality lithium battery, it can be used for about 4 hours when fully charged. Features 2.8-inch HD LCD display with 320x240 Resolution Portable Pocket Oscilloscope with Signal Generator Lightweight, mini-sized, assembled Faster sampling: 5 MS/s, 1 MHz bandwidth Versatile triggering: Single, Normal, Auto User-friendly: One-button setup Extended battery: 1000 mAh, 4 hours Multi-functionality: 10 KHz Sine Wave Generator Specifications Bandwidth 1 MHz Sampling rate 5 MSa/s Vertical Sensitivity 10mV/Div – 20V/Div Time Base Range 500ns/Div – 20s/Div Voltage Range X1: ±40 V (Vpp: 80 V)X10: ±400 V (Vpp: 800 V) Trigger Method Auto / Normal / Single Coupling Method AC/DC Frequency Range 0-10 KHz Duty Cycle Range 0-100% Amplitude Range 0.1-3.3 V Display 2.8 inches (Resolution: 320 x 240) USB Charging 5 V/1 A Lithium Battery Capacity 1000 mAh Dimensions 99 x 68.3 x 19.5 mm Weight 100 g Included 1x FNIRSI DSO153 Oscilloscope 1x P6100 oscilloscope probe 1x Adapter 1x Alligator clip probe 1x USB charging cable 1x Lanyard 1x Manual Downloads Manual Firmware V1.1.8

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ESP32-C3-DevKitM-1 is an entry-level development board based on ESP32-C3-MINI-1, a module named for its small size. This board integrates complete Wi-Fi and Bluetooth LE functions. Most of the I/O pins on the ESP32-C3-MINI-1 module are broken out to the pin headers on both sides of this board for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-C3-DevKitM-1 on a breadboard. Specifications ESP32-C3-MINI-1 ESP32-C3-MINI-1 is a general-purpose Wi-Fi and Bluetooth LE combo module that comes with a PCB antenna. At the core of this module is ESP32-C3FN4, a chip that has an embedded flash of 4 MB. Since flash is packaged in the ESP32-C3FN4 chip, rather than integrated into the module, ESP32-C3-MINI-1 has a smaller package size. 5 V to 3.3 V LDO Power regulator that converts a 5 V supply into a 3.3 V output. 5 V Power On LED Turns on when the USB power is connected to the board. Pin Headers All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board. For details, please see Header Block. Boot Button Download button. Holding down Boot and then pressing Reset initiates Firmware Download mode for downloading firmware through the serial port. Micro-USB Port USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-C3FN4 chip. Reset Button Press this button to restart the system. USB-to-UART Bridge Single USB-UART bridge chip provides transfer rates up to 3 Mbps. RGB LED Addressable RGB LED, driven by GPIO 8. Downloads ESP32-C3 Datasheet ESP32-C3-MINI-1 Datasheet ESP32-C3-DevKitM-1 Schematic ESP32-C3-DevKitM-1 PCB Layout ESP32-C3-DevKitM-1 Dimensions

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The FR01D (2-in-1) thermal imaging camera and multimeter is a compact and lightweight solution that simplifies diagnostic and maintenance tasks. The one-click function allows you to switch effortlessly between thermal imaging and multimeter mode, giving you two important tools in one portable device. The multimeter is capable of measuring DC and AC voltage, resistance, diode checks, continuity testing, and capacitance. The FR01D has a 2.8-inch touchscreen with a resolution of 320 x 480 pixels. The device is powered by an integrated rechargeable lithium battery and can be charged via USB. With the FR01D, you can inspect and maintain circuit boards, check power supplies, repair electronic devices, and overhaul household appliances. Its compact size, multifunctionality, and user-friendliness make the FR01D the ideal companion for electronics and maintenance technicians. General Specifications Display size 2.8" (320 x 480) Touchscreen Resistive Data transmission USB-C Image storage format BMP Battery Li-ion battery Storage temperature −20°C～60°C（−4°F～140°F) Operating temperature 0°C～50°C（32°F～122°F) Operating humidity <85% RH Dimensions 134 x 69 x 25 mm Weight 130 g Thermal Imaging Specifications Sensor Vanadium oxide (VOx) Image capture frequency 25 Hz Thermal imaging pixels 192 x 192 Field of View (FOV) 50.0°(H) x 50°(V) / 72.1°(D) Temperature range −20°C ~ +550°C (−4°F～1022°F) Gain mode Auto Accuracy ±2°C or ±2% Measurement resolution 0.1°C / 0.1°F Multimeter Specifications DC input voltage (max.) 1000 V AC input voltage (max.) 750 V Resistance (max.) 99.99 MΩ Capacitance (max.) 99.99 mF Duty cycle test range 0.1% ~ 99.9% Diode test range 0 V ~ 3 V Continuity test 999.9 Ω Display 9999 counts (Refreshes 3x per second) Accuracy Function Range Resolution Accuracy AC Voltage 400 mV 0.1 mV 2% +3 9.999 V 0.001 V 1.0% +3 99.99 V 0.01 V 999.9 V 0.1V DC Voltage 400 mV 0.1 mV 2% +3 9.999 V 0.001 V 1.0% +3 99.99 V 0.01 V 999.9 V 0.1 V Resistance 999.9 Ω 0.1 Ω 0.5% +3 9.999 KΩ 0.001 kΩ 99.99 KΩ 0.01 kΩ 999.9 KΩ 0.1 kΩ 9.999 MΩ 0.001 MΩ 99.99 MΩ 0.01 MΩ 1.5% +3 Diode Test 3.000 V 0.001 V 10% Capacitance 9.999 nF 0.001 nF 2% +5 99.99 nF 0.01 nF 999.9 nF 0.1 nF 9.999 uF 0.001 uF 99.99 uF 0.01 uF 999.9 uF 0.1 uF 9.999 mF 0.001 mF 5% +5 99.99 mF 0.01 mF Included 1x FR01D IR-Camera and Multimeter 2x Test Leads 1x USB Cable 1x Manual

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Now you can connect your Arduino boards with the official Arduino USB cable. Through a USB-C to USB-C with a USB-A adapter connection, this data USB cable can easily connect your Arduino boards with your chosen programming device. The Arduino USB cable has a nylon braided jacket in the typical Arduino colors white and teal. The connectors have an aluminum shell that protects your cable from harm at the same time as looking cool. Length: 100 cm Aluminium shell with logo Nylon braided jacket white and teal

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Features Synchronous mode: Auto, Normal, Single, None, Scan Rising/Falling edge trigger Modes of vertical precise, horizontal precise measurement and triggering threshold Auto Measurement: frequency, cycle time, duty cycle, DC RMS voltage/Vpp /Vmax/Vmin/Vavg Inbuilt signal generator/10 Hz-1 MHz square wave (duty adjustable) or 10 Hz-20 KHz Sine/Square/Triangle/Sawtooth wave Specifications Analog bandwidth 1 MHz Max sample rate 10 Msa/s Max sample memory depth 8K Analog input impedance 1 MΩ Max input voltage ±40 V (X1) Coupling AC/DC Vertical sensitivity 20 mv/Div~10 V/Div (1-2-5) Horizontal sensitivity 1 uS/Div~2 S/Div (1-2-5) Storage Built-in 8 MB U disk storage for waveform data and images Power supply Internal 550 mAh Lithium battery, recharging through Micro USB port Display 2.8' Full Color TFT LCD (320x240 pixels) Dimensions 100 x 56.5 x 10.7 mm Downloads User Manual Source Code App

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This 2-in-1 hot air soldering station offers a cost-effective solution for soldering and desoldering all types of SMD components. Features Incl. soldering iron and hot air pump. It is suitable for soldering and desoldering all types of surface mounted IC, PCB or components. The control unit has 2 LEDs that display the temperature and in °C and °F. The temperature can be easily adjusted with simple up/down buttoms. The hot air temperature can be calibrated from 3L/min to 24L/min continuously. Temperature is micro-processor controlled and can be adjusted. Temperature range: 50-480°C for soldering iron, 100-500°C for hot air pump. Specifications Power Soldering iron: 24 V, 60 WHot air pump: 300 W Power supply 220-240 V AC/50 Hz Temperature range Soldering iron: 50-480°CHot air pump: 100-500°C Dimensions 113 x 125 x 175 mm Weight 2 kg Included 1x ZD-8922 Rework station 1x Soldering iron 1x Hot air gun 3x Hot air nozzles 1x Soldering iron with needle bit 1x Power cord 1x Soldering iron stand with sponge

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EU Power Supply for Arduino Uno (9 V, 1 A)

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