schema

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schema

275 links - and 1 categories

Antennas : 160M
  • Inverted L- Antenna for the TOP Band - An schema drawing and formula to calculate size of an Inverted L antenna for the 160 meters band, 1.84 MHz.
    [ Hits: 699 | Votes: 8 | Rating: 6 ]
Antennas : 40M
  • A comparison of 40 meter beam antennas - This page describes a comparison study on seven different beam antennas for 40 meters band. Yagi antennas, moxon antennas, mini horse all antennas are described with schema diagram , azimuth plot and SWR F/B Gain diagram
    [ Hits: 266 | Votes: 0 | Rating: 0 ]
Antennas : Dipole Antennas : J-Pole
  • Multiband J-Pole Antenna by IZ0UPS - A multiband J-Pole antenna project that cover 144,220 and 430 MHz. The articles includes several pictures of this multi-band antenna, including handmade schematics and diagrams, project is mainly in Italian
    [ Hits: 411 | Votes: 4 | Rating: 7.25 ]
Antennas : Masts and mounts
  • Portable Mast - This is a schematic drawing of a project for the construction of a portable mast that can easily be made with PVC pipes.
    [ Hits: 595 | Votes: 2 | Rating: 6.5 ]
Antennas : Morgain
  • Morgain Antenna by DL6GD - A schematic antenna for a 40-80 Morgain dipole antenna with diagram and pictures, article partially in german
    [ Hits: 1482 | Votes: 6 | Rating: 6.5 ]
Antennas : Portable
  • ZR6KMD 20m Field Dipole - A simple drawing schematic of a portable field dipole for 14 MHz with dimensions in meters and instruction for setting up the antenna and to store the radial for easy transportation
    [ Hits: 510 | Votes: 3 | Rating: 7.33 ]
Antennas : Quadrifilar Helix
  • Making a Quadri Filar Helix antenna - Lot of pictures, drawings and schematics to build your own QFH Quadri Filar Helix antenna for 137 MHz satellite signals reception
    [ Hits: 451 | Votes: 6 | Rating: 3.83 ]
Radio Equipment : HF Transceivers : Yaesu FT-1000MP
  • Yaesu FT-1000-D RS 232 CAT interface - Schematic diagram circuit to build a RS232 serial interface for the Yaesu FT 1000D, works also as CW Keyer control with Log-EQF software. May be used with other Yaesu HF Transceivers.
    [ Hits: 218 | Votes: 1 | Rating: 1 ]
Radio Equipment : VHF-UHF Handhelds : Baofeng UV-3R
  • Baofeng Mic Pin Out and Programming Cable Schematics - Speaker Microphone Pin Out, Dual PTT Switching,Programming Cables, SMA Antenna Connection, Extended Antenna Threads for Baofeng UV 3, UV 5 Series handheld transceivers
    [ Hits: 1070 | Votes: 8 | Rating: 8.75 ]
Software : Circuit Design
  • KiCad EDA - A Cross Platform and Open Source Electronics Design Automation Suite that runs on multiple operative systems. It allow to easily create even complex schematics and is suitable for professional use
    [ Hits: 87 | Votes: 0 | Rating: 0 ]
  • TinyCAD - TinyCAD is a an open source program for drawing circuit diagrams which runs under Windows. TinyCAD is a program for drawing electrical circuit diagrams commonly known as schematic drawings. It supports standard and custom symbol libraries. It supports PCB layout programs with several netlist formats and can also produce SPICE simulation netlists.
    [ Hits: 134 | Votes: 1 | Rating: 10 ]
  • DesignSpark - RS Online - DesignSpark PCB is a free PCB design tool, by rs online, designed to help the user to convert their design into PCB faster with unique design options. DesignSpark is a powerful software engine that enables you to capture schematics and design PCB boards and layouts.
    [ Hits: 71 | Votes: 0 | Rating: 0 ]
  • PCB gEDA - PCB is an interactive printed circuit board editor for Unix, Linux, Windows, and Mac systems. This Software runs across multiple platforms such as Unix, Linux, Windows as well as Mac systems. This Tool is widely used for electronics as well as electrical circuit designing that comes with schematic capture. PCB offers high end features such as an autorouter and trace optimizer which can tremendously reduce layout time.
    [ Hits: 103 | Votes: 0 | Rating: 0 ]
Technical Reference : Arduino
  • Arduino Vector Graphic Antenna Analyser - A vector graphic antenna analyzer project page by DC2WK demonstrating a project realized by DG7EAO includes, part list, schematics, and videos.
    [ Hits: 1302 | Votes: 4 | Rating: 7.75 ]
Technical Reference : Arduino : Morse Code
  • CW Trainer - Arduino Project - Hone your Morse code skills with this entry-level project. Article includes the full schematic of the CW Trainer, describes the sketch and how to operate the morse code trainer.
    [ Hits: 601 | Votes: 0 | Rating: 0 ]
Technical Reference : Grounding
  • Home Made Artificial Ground Tuner - Home made Artificial Ground. This article contains a schematics of a custom artificial ground device that can be used to ground your station equipment if you live in an higher floor and cannot effort a proper dedicated ground connection. This Artificial Ground has been designed by Colyn Baillie-Searle GD4EIRP
    [ Hits: 584 | Votes: 0 | Rating: 0 ]
Technical Reference : HF Radios
  • PT40 7 MHz Transceiver by AA3SJ - Home made 40 meter transceiver project. The receiver is a Progressive Receiver with a few modifications. The Transmitter is a modified MFJ Cub circuit. Includes schematic and circuit diagrams for Receive Input Filter, 3-Pole 500 Hz Cohn Filter and 7 MHz Double Tuned Bandpass Filter
    [ Hits: 162 | Votes: 0 | Rating: 0 ]
Technical Reference : Sound Card Radio Interfacing
  • Optocoupled Transceiver-PC Audio Isolator project - An optocoupled audio interface between PC and Transceiver for digital modes. The article includes full schematic of complete board and build instructions.
    [ Hits: 197 | Votes: 0 | Rating: 0 ]
Technical Reference : Spectrum Analyzers
  • Homemade spectrum analyzer - An inexpensive spectrum analyzer for the radio amateur, with a respectable performance and a quite good dynamic range. Schematic and basic information on how spectrum analyzers works.
    [ Hits: 370 | Votes: 0 | Rating: 0 ]

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