net line

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net line

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Antennas : 160M
  • 160 meter linear loaded Inverted L antenna - The total length of the inverted L is 240 feet, which is 7/16th of a wave length long. It has a 92 foot horizontal linear load section 1 foot above ground that terminates into a home-brewed parallel network tuner by KN4LF
    [ Hits: 4155 | Votes: 5 | Rating: 5.6 ]
Antennas : 2M
  • VHF Collinear-Dipole - 2 m. Band VHF Collinear with 2 Dipoles by sv1bsx
    [ Hits: 10948 | Votes: 23 | Rating: 4.22 ]
Antennas : Antenna Calculators
  • Small Transmitting Loop Antenna Calculator - A free online calculator for making all of the calculations required to design and build small transmitting loop antennas, also known as magnetic loops by 66pacific.com
    [ Hits: 5079 | Votes: 19 | Rating: 7.05 ]
  • RF Transmission Line Loss Calculator - This calculator computes the matched line loss for a transmission line using a model calibrated from data for the transmission line types built in to the calculator. It also gives an estimate of the mismatched loss if the mismatch is specified.
    [ Hits: 2508 | Votes: 18 | Rating: 3.94 ]
Antennas : Baluns : 1 to 1 Balun
  • Practical Guanella 1:1 balun - This article proposes a lossy transmission line model of a practical Guanella 1:1 balun that is effective for all frequencies within and immediately adjacent to the pass band
    [ Hits: 3617 | Votes: 3 | Rating: 3.33 ]
Antennas : Collinear
  • Home-brew Compact 6dBi Collinear Antenna - This page details the construction of an easy-to-make collinear 360 degrees omni-directional, vertically polarised, antenna for 802.11b/g wireless networking.
    [ Hits: 20572 | Votes: 29 | Rating: 7.89 ]
Antennas : Feed Lines : Open Wire Antennas : Theory Antennas : Tuners
  • The EZ-Tuner - The "EZ-Tuner" is a homebrew automatic legal-limit antenna tuner that covers all amateur HF bands from 160-10 meters. Using a T-network design and controlled by a BASIC Stamp BS2sx microcontroller, the EZ-Tuner will match at least a 16:1 VSWR for either unbalanced or balanced transmission lines.
    [ Hits: 5567 | Votes: 1 | Rating: 9 ]
Antennas : Windom
  • Windom Antenna with 4:1 balun - The Windom is an Off-center wire multiband Antenna. The old version was fed just by a single-wire connected on 1/3 of antenna's overall length or with an open-line feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States - 50 Ohm output transceivers .
    [ Hits: 8025 | Votes: 9 | Rating: 6.89 ]
Antique Radios : Antique Radio Reference Internet and Radio : Other Resources
  • Learn CW Online - At LCWO you can learn Morse telegraphy (CW) online in your browser. You don't need to install a program on your computer, and you always have your personal settings available, from any computer on the globe with an internet connection. You can also easily track your progress by means of different statistical functions.
    [ Hits: 4241 | Votes: 31 | Rating: 5.9 ]
Internet and Radio : WebSDR
  • HB9FX Internet Remote Base JN37XH Hochwacht Zofingen Switzerland - Online web receiver powered by OpenWebRX based in Switzerland. You can isten between 10kHz - 10GHz frequencies. Receiver is operated by HB9BHU Rig VLF/HF/VHF: Airspy HF+, Magnetic Loop/Discone Rig SHF X-Band LNB, RTL-SDR, Stacked Slot Antenna
    [ Hits: 14057 | Votes: 111 | Rating: 6.7 ]
Manufacturers : Baluns
  • CoaxMan - The Coaxman by Clear Signal Products, Inc. features a complete Wireman line of coaxial cable and antenna wire. Antenna wire, baluns, coax connectors, insulators, ladder line, magnet wire, rope.
    [ Hits: 1860 | Votes: 2 | Rating: 4.5 ]
Operating Modes : Morse code
  • Text to Morse converter - A simple text to morse and morse to text online converter
    [ Hits: 772 | Votes: 4 | Rating: 7.25 ]
Software : Circuit Design
  • ViPEC Network Analyzer - This program intended for electronic circuit analysis (mainly for Linux). ViPEC is a powerful tool for the analysis of high frequency, linear electrical networks.
    [ Hits: 1189 | Votes: 0 | Rating: 0 ]
Software : Morse Code Training
  • ebook2cw - text to morse - ebook2cw is a command line program (optional GUI available) which converts a plain text ebook to morse code MP3 files. It works on several platforms, including Windows and Linux.
    [ Hits: 1554 | Votes: 3 | Rating: 2.67 ]
Technical Reference : Amplifiers
  • TANKIT - A free design aid for vacuum tube linear RF power amplifiers. Determine plate circuit operating parameters and design pi or pi-L tanks quickly and easily.
    [ Hits: 1935 | Votes: 3 | Rating: 10 ]
Technical Reference : Amplifiers : HF Amplifiers
  • Amplifier for 15 and 17 meter band - The two linear amplifiers are ment for use with QRP SSB/CW/FM/AM transmitters on the amateur bands 15 and 17 meters can be powered from a 12 volt DC supply by ON6MU
    [ Hits: 1608 | Votes: 0 | Rating: 0 ]
Technical Reference : Amplifiers : VHF Amplifiers
  • A 20W Amplifier for 2 meters - VU2RAR basic VHF power amplifier suitable for 144-146 Mhz output power can vary from 3 to 25 Watts.
    [ Hits: 3039 | Votes: 5 | Rating: 6.6 ]

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