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53 links - and 1 categories

Antennas : Receiving
  • Homebrew Bicone Antenna Project - Homebrewing a vhf bicone antenna with 8 clothes hangers and 4 feet of Sch40 non-metallic rigid conduit
    [ Hits: 551 | Votes: 1 | Rating: 6 ]
Antennas : Tuners
  • Z Match with Toroid - A single coil Z-Match. This QRP version by G3WQW, using a T130-2 toroidal inductor and polyvaricon variable capacitors was published in Sprat 84.
    [ Hits: 98 | Votes: 0 | Rating: 0 ]
Manufacturers : Software Defined Radio
  • SDRplay - SDRplay limited is a UK company and consists of a small group of engineers with strong connections to the UK Wireless semiconductor industry. SDRplay announced its first product, the RSP1 in August 2014
    [ Hits: 708 | Votes: 3 | Rating: 9 ]
Operating Aids : History
  • Evolution of Car Radios: From Marconi to Motorola - his historical account traces the development of car radios from Marconi's mobile wireless telegraph station on a steam engine vehicle in 1901 to Motorola's iconic car radio models in the 1930s. It highlights key milestones such as Alfred Grebe's radio-telephone experiments on Long Island and the introduction of Marconi-Phone 8 radios by the Daimler Company in England. The narrative explores technological advancements, including the transition from TRF to Super-Heterodyne circuitry and the integration of push-button controls. The evolution from vacuum tubes to transistors and compact discs is also documented, showcasing the continuous innovation in automotive entertainment systems.
    [ Hits: 47 | Votes: 1 | Rating: 1 ]
Radio Equipment : HF Transceivers : Icom IC-705
  • IC705 GoBox: A Portable Windows-Based Solution for All-Digital Modes - This project details the creation of a portable GoBox housing an IC705, Windows 11 PC, and Bluetooth microphone. The robust setup, enclosed in a weatherproof Hofbauer Explorer Case, ensures stability and functionality for QRP and emergency radio activities. The aluminum-mounted devices minimize RF interference, and a built-in LifePO4 battery powers the 10.1 TFT touch LED monitor, providing approximately 12 hours of use in receive mode. With a focus on grab-and-go versatility, this GoBox stands as an efficient solution for outdoor ham radio operations.
    [ Hits: 93 | Votes: 0 | Rating: 0 ]
Shopping and Services : Electronic Components
  • Baitron Electronics Company Limited - Electronic Components Distributor - Online shop for electronic components, sensors, connectors, capacitors, resistors, passives, semiconductors from Baitron independent electronic components distributor.
    [ Hits: 243 | Votes: 0 | Rating: 0 ]
  • QRPparts - Online NOS electronic parts shop for QRP-QRPp radio constructors, to vintage radio and electrical measuring equipment restaurators. Many Germanium diodes, transistors and RF parts, semiconductors.
    [ Hits: 246 | Votes: 1 | Rating: 10 ]
Shopping and Services : Test equipment
  • TRS RenTelco - Test Equipment Rental - TRS RenTelco provides new or used electronic test equipment for rent, lease or purchase. Solutions are provided for various type of equipment such as spectrum analyzers, network analyzers, oscilloscopes etc from leading manufacturers. Our products are widely used in communications, R&D, semiconductor, and wireless industries.
    [ Hits: 234 | Votes: 0 | Rating: 0 ]
Software : RF Design
  • AppCAD - Free windows application for RF Microwave and Wireless applications. AppCAD is useful for the design and analysis of many circuits, signals, and systems using products from discrete transistors and diodes to Silicon and GaAs integrated circuits. AppCad is a unique suite of RF design tools and computerized Application Notes to make your wireless design job faster and easier
    [ Hits: 128 | Votes: 1 | Rating: 8 ]
Technical Reference : Arduino
  • PI4ino - A Generic Arduino Beacon Controller - Generic PI4 + CW + Carrier Arduino Beacon Controller with interfacing to Analog Devices AD9833 DDS AD9850 DDS, AD9851 DDS, AD9912 DDS , AD9913 DDS, ADF4350 and ADF4351 synthesizers, ADF5355 synthesizer, ADF5356 synthesizer, Radio modulated by an audio soft-DDS Reverse DDS, RDDS microwave unit, Silicon Labs Si5351A programmable clock generator, Silicon Labs Si570 programmable XO/VCXO, Texas Instruments LMX2541 synthesizer
    [ Hits: 1733 | Votes: 7 | Rating: 7.71 ]
  • Arduino Nano and si5351 Digital VFO/BFO - A kit Digital VFO with pre-soldered surface mount parts and burned-in firmware, a scratch build with Arduino Nano, C code with modifications, and a Silicon Labs si5351 PLL clock generator on a breakout board.
    [ Hits: 369 | Votes: 2 | Rating: 6 ]
Technical Reference : Components : Datasheets
  • Icchipword - ICChip, as an electronics-guide website, provides you with the industry professional electronic components data sheets, parameters, packaging and brand manufacturer information, as well as product-risk assessment and control, other environmental conflict mineral procurement and reporting solutions. Hope these semiconductors and electronic components data in each document can solve your problems and meet your requirements.
    [ Hits: 123 | Votes: 0 | Rating: 0 ]
Technical Reference : QRP Projects
  • The Micro20 III Pocket Size SSB RTX for 20m - DK7IH QRP transceiver for 14 MHz. This small and compact home made transceiver with a max power output of 5W, the VFO module is based on the clock oscillator chip Si5351A by Silicon Labs ATmega168 and OLED 1306
    [ Hits: 250 | Votes: 3 | Rating: 10 ]

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