eq tools

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eq tools

18 links

Antennas : Feed Lines

  • SWR: Maximum allowable VSWR - VSWR (voltage-standing-wave-ratio) represents the degree with which an antenna is "matched" to the system impedance. Most modern antennas do not require any tuning for optimum performance. VSWR is one of the easiest parameters to measure and VSWR meters are becoming very popular antenna installation tools
    [ Hits: 1237 | Votes: 3 | Rating: 3.33 ]
  • Build An LF Antenna Analyzer - A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.
    [ Hits: 4567 | Votes: 2 | Rating: 5 ]
Antennas : Halo
  • A Tree Friendly 2 Meter Halo Antenna by KR1ST - Article on a 2 and 6 meters halo antennas that does not require a mast has a very low part count and can easily be built with a minimum of tools.
    [ Hits: 1530 | Votes: 2 | Rating: 4.5 ]
Antennas : Installation
  • Introduction to HFTA HF Terrain Assessment - A complete guide to plan antenna installation by using several tools and resources including the popular HFTA High-Frequency Terrain Assessment software distributed by ARRL. A full tutorial on how to use it and how to interpretate reports produced by this antenna setup analysis tool.
    [ Hits: 135 | Votes: 1 | Rating: 7 ]
Antennas : Quad
  • 2 Meter 5 Element Quad - A five element quad antenna for 144 MHz DIY Project. This 2 Meter 5 Element Quad antenna was modeled using EZNEC, with a boom from a UHF TV antenna and CPVC pipe for spreaders. Constructed for 146MHz, it exhibits a gain of 10.7dB and an impedance of 75 ohms. Real-world results surpass the HT antenna, reaching over 20 repeaters up to 75 miles away. The design, costing around $10, employs simple tools for assembly.
    [ Hits: 1884 | Votes: 9 | Rating: 6.23 ]
DX Resources : Callsigns : Vanity Call Signs
  • RadioQTH - Ham radio vanity license search - RadioQTH Amateur Radio Vanity License Search: This site shows vanity call sign requests filed with the FCC, when call signs will be available for vanity applications and other useful tools that will help in the search for the perfect amateur radio vanity call sign.
    [ Hits: 3437 | Votes: 12 | Rating: 6.5 ]
Manufacturers : Software Defined Radio
  • Red Pitaya - Established in 2013 produce kits and solutions to build your own SDR transceivers, Skimmer servers and wspr devices for the amateur radio market, and digital test equipment, and learning tools for the academic and research markets.
    [ Hits: 186 | Votes: 0 | Rating: 0 ]
Manufacturers : Towers and Accessories : Towers Erection Supplies
  • Hi-Line Utility Supply - Furnishing Quality Tools & Equipment For Construction and Maintenance of Above and Underground installations.
    [ Hits: 529 | Votes: 1 | Rating: 10 ]
Propagation : Propagation Forecast
  • HF communication prediction tools - Online HF Communication prediction system provided by the Australian Governament Buerau of Metereology allow to predict usable frequency rage for radiocommunications between two stations allowing to specify frequency and date range. This tool allow calculation with different methods and algorithms
    [ Hits: 168 | Votes: 0 | Rating: 0 ]
Radio Equipment : HF Transceivers : Kenwood TS-480
  • Kenwood TS480HX Firmware Upgrade - The Kenwood TS480SAT/HX firmware upgrade guide, procedure, tools required, software needed to upgrade the transceiver firmware and some hints.
    [ Hits: 78 | Votes: 0 | Rating: 0 ]
Shopping and Services : Cables and Connectors
  • Electronix Express - Online shop for all electronics needs. Cables, Buzzers all kind of electronic components capacitors, inductors, relays, resistors crystals transformers, hardware like knobs screws nuts and washers, opto electronics, diodes and transistors, soldering desoldering products, test equipmemt and tools
    [ Hits: 1065 | Votes: 2 | Rating: 8.5 ]
Shopping and Services : Electronics
  • C&S Sales - Test equipment and tools
    [ Hits: 859 | Votes: 1 | Rating: 10 ]
Shopping and Services : Test equipment
  • Jensen Tools - Tool Kits, Test Equipment and more On-line Catalog
    [ Hits: 1833 | Votes: 4 | Rating: 7.5 ]
Software : Linux
  • Cute CW - Most morse code (CW) training requires you to learn everything at once without a training process. This application changes that and separates training into phases.
    [ Hits: 2370 | Votes: 57 | Rating: 8.3 ]
Software : Propagation
  • ACE-HF Propagation Prediction Software - ACE HF Pro, ACE HF Mobile are Radio Frequency (RF) propagation analysis tools designed for military applications. This version allows the user to analyze the entire HF spectrum using a single fixed transmitter location and multiply receive locations. Commercial version.
    [ Hits: 10041 | Votes: 33 | Rating: 6.22 ]
Technical Reference : Audio
  • Soundcard Audio Tools and Toys - Soundcard audio tools and toys, experimental ideas and utilities. Signal Generator, Frequency-counter / instrument-tuner, Real-time Spectrum Analyser
    [ Hits: 14611 | Votes: 16 | Rating: 7.75 ]
Technical Reference : Calculators
  • RF Impedance Matching Calculator - Calculates the network to match a line to a specific complex load. This online tool calculates the matching network necessary to terminate a line of the specified characteristic impedence Zo in a specific complex load impedence RL + jXL at a specified frequency.
    [ Hits: 192 | Votes: 1 | Rating: 10 ]
Technical Reference : Spectrum Analyzers

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