tuner

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tuner

250 links - and 6 categories

Antennas : Delta loop
  • 160m Inverted Delta Loop - This 160 meter Delta Loop antenna is made of Hard drawn copper wire AWG 10, the two upper side are 148.5 foot each base wire is 240.9 foot, the feed point at 30.69 foot to one corner, feed with 450 Homs balanced line to an antenna tuner on the ground, then with 50 homs coax to the shack.
    [ Hits: 108 | Votes: 0 | Rating: 0 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • HF EFHW Antenna Antenna Tuner - Schemaric diagram for a 80m, 40m, 30m, 20m EFHW Antenna Antenna Tuner. The tuner has been designed for an antenna length of 41m and the counterpoise 7.5m.
    [ Hits: 117 | Votes: 0 | Rating: 0 ]
Antennas : Loop
  • Quad Loop Antenna for 50 MHz - Building A Full-Wave Quad Loop Antenna for 6 Meters. This is an easy antenna to build and the materials cost about $15-20. It exhibits 1.8dB gain over a 1/2-wave dipole. Using an open-wire parallel feedline (commonly called ladder line) with an antenna tuner, it tunes up on the 10m band as a 5/8-wave loop as well
    [ Hits: 195 | Votes: 1 | Rating: 1 ]
Antennas : Magnetic Loop
  • QRP HF Loop Antenna - This is an uncommon loop antenna, hombrewed without the small feeding loop. With small spare parts is possible to build a loop antenna tuner for portable usage tha can ben used with common HF QRP transceivers
    [ Hits: 160 | Votes: 1 | Rating: 10 ]
Antennas : OCF
  • Homebrew an OCF Off-Center Fed Dipole Antenna - This type of antenna is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It’s a dipole fed off center with a 4:1 balun at the offset feed point. The antenna shown covers 80, 40, 20 and 10 meters. The formula can also be used to adjust the overall length to cover more or fewer bands and the resulting overall length. 160-10m, 80-10m or 40-10 meters depending on your available space. Other bands will require a tuner.
    [ Hits: 194 | Votes: 3 | Rating: 6.67 ]
Antennas : Stealth
  • Balcony Vertical HF Antenna - The simple balcony vertical HF antenna made with plastic fishing pole. Just along the pole I install copper wire in 7 meter length. Then was installed ATU. It was used home brew tuner. For each band was used one counterpoise in length 0.8 x lambda/4
    [ Hits: 236 | Votes: 0 | Rating: 0 ]
Antennas : T2FD
  • T2FD Antenna - Terminated and twisted folded dipole - T2FD is a 600-900 ohms folded dipole, terminated with resistor. Feed impedance is coupled with 50/600 ohms voltage balun. It is a wide band antenna with rather low SWR over the full designed frequency range: antenna tuner is seldom needed.
    [ Hits: 479 | Votes: 0 | Rating: 0 ]
Antennas : Tuners
  • Miracle Whip Inspired Antenna Tuner - There are quite a few variants of the design accompanied with many opinions on the effectiveness of the antenna. This page features links to some similar projects and a homebrewed personalized version of this portable antenna tuner
    [ Hits: 220 | Votes: 0 | Rating: 0 ]
  • L-Match Tuner Build for QRP Operation - An L-Match tuner is a device that can add either inductance (L) or capacitance (C) to the antenna, bridging that gap between 5000 ohms and 50 ohms, thus matching it to the radio. The L-Match tuner is an extremely useful device that every QRP operator will want to have.
    [ Hits: 185 | Votes: 0 | Rating: 0 ]
  • The SPC Tuner - SPC, series parallel capacitance, tuner project. Built properly, it will match a very wide range of impedance. It also maintains good harmonic attenuation.
    [ Hits: 154 | Votes: 0 | Rating: 0 ]
  • A Versatile SOTA Antenna Tuner - This is a detailed, technical piece, intended mostly for makers and more creative activators, who enjoy building and using their own tools on the summits. A multiband portable antenna tuner supporting 10W, small and light, suitable for SOTA operations
    [ Hits: 261 | Votes: 2 | Rating: 10 ]
  • How does an antenna tuner work ? - Collection of several topics on antenna tuners and their performance. Why use an antenna tuner? How does an antenna tuner…tune Does an antenna tuner fool the radio? Will an antenna tuner waste power? Can an antenna tuner help get more power to the antenna?
    [ Hits: 185 | Votes: 0 | Rating: 0 ]
  • Portable T-Match ATU - Homebrew Portable T-Match ATU, VK1AD Portable T-Match Antenna Tuner (ATU) mounted in a plastic case, T-Match ATU Schematic – 3.5 to 52 MHz power rating 80 watts
    [ Hits: 100 | Votes: 1 | Rating: 8 ]
  • Homebrew Z-Match Transmatch - For this project, I decided to try my hand at building a Z-Match tuner from scratch. This type of tuner has been around for a while. While the Z-match can take on several variations, what distinguishes it from other circuits is that it is a resonant circuit that uses a fixed inductor.
    [ Hits: 132 | Votes: 0 | Rating: 0 ]
  • QRP Z Match Antenna Tuner Project - A Home made antenna tuner for QRP transceivers. This small tuner is the ideal for portable operations with random length wires or whenever you have not a resonant antenna.
    [ Hits: 107 | Votes: 1 | Rating: 10 ]
Antennas : Wire
  • The UnTenna - Multiband random wire unun (unbalanced to unbalanced) for use with rigs with builtin autotuners.
    [ Hits: 236 | Votes: 0 | Rating: 0 ]
Radio Equipment : HF Transceivers : Icom IC-7300
  • ICOM IC 7300 mods - Modifications for the ICOM IC 7300 transceiver, MARS mod, antenna tuner coverage expansion, Mic Modification
    [ Hits: 652 | Votes: 3 | Rating: 7.67 ]
Radio Equipment : HF Transceivers : Icom IC-7851
  • ICOM IC 7851 Reception comparison - Reception test comparison between IC 756 pro III, IC 7700 and the last jewel by ICOM IC 7851
    [ Hits: 89 | Votes: 0 | Rating: 0 ]
Shopping and Services : Kits and Components
  • QRP Ham Radio Kits - QRPhamradiokits is an online shop for custom amateur radio kits including QRP transceiver kits, tuners, cw keyers, VFO DDS, part and components
    [ Hits: 173 | Votes: 1 | Rating: 8 ]
Technical Reference : Test Equipment : Oscilloscope
  • OsclilloSpectrum - Spectrum and oscillo with tuner TV 40 MHz to 860 MHzh ome made project. This projects foreseen a multi function device providing a spectrum analyzer, scope and a voltmeter.
    [ Hits: 117 | Votes: 1 | Rating: 7 ]

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