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homebrew

418 links - and 4 categories

Antennas : 2M
  • Coax Dipole for 2 meters band - A homebrew 2m 144.2 MHz vertical 1/2 wave Coaxial Dipole antenna project for your home QTH, SOTA, portable field operations/WICEN exercises or the emergency 2m Go-box. Elsewhere in amateur radio circles this antenna is known as a 2m Flower Pot Antenna
    [ Hits: 248 | Votes: 3 | Rating: 6 ]
  • Portable Coaxial Dipole Flower Pot Antenna - A homebrew 2m 144.2 MHz vertical 1/2 wave Coaxial Dipole antenna project for your home QTH, SOTA, portable field operations/WICEN exercises or the emergency 2m Go-box. Elsewhere in amateur radio circles this antenna is known as a 2m Flower Pot Antenna
    [ Hits: 103 | Votes: 1 | Rating: 8 ]
Antennas : 40M : 40 meter Dipole Antennas
  • 40-80 Coax Trap Dipole - Full article on how to build a home-made wire dipole antenna for 40 and 80 meters band. Article is fully in italian, as it was published on ARI RadioRivista, but is plenty of self explaining pictures that will guide you on homebrewing this trapped dipole antenna for the lower amateur radio bands.
    [ Hits: 261 | Votes: 3 | Rating: 9.33 ]
Antennas : 6M
  • 6m Oblong Loop Antenna - Homebrew 6 meters antenna for SOTA and Parks activations.
    [ Hits: 81 | Votes: 0 | Rating: 0 ]
Antennas : Baluns
  • 9:1 Balun and Unun - Homebrew a 9:1 transformer and measurement for testing purposes with a miniVNA
    [ Hits: 108 | Votes: 0 | Rating: 0 ]
Antennas : CobWeb
  • A Cobwebb antenna homebrew - A homebrew cobwebb antenna for HF bands covering from 10 to 20 meters band.
    [ Hits: 175 | Votes: 1 | Rating: 10 ]
Antennas : HexBeam
  • Homebrew HexBeam Antenna - The Hex Beam page by W1GQL page, a document dedicated to home brewing hex beam antenna with dimensions, info on spreaders, wires to use, spacing tips, feed line information, mast to use, multi-band version and antenna height
    [ Hits: 108 | Votes: 0 | Rating: 0 ]
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 : Tuners
  • 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: 101 | 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 ]
Antennas : Vertical
  • 20-30m Vertical Antenna - Homebrew project for a vertical antenna with a coaxial-cable trap, that works on 20 and 30 meters band.
    [ Hits: 73 | Votes: 0 | Rating: 0 ]
Ham Radio : Blogs
  • ZS1II VE2EK Amateur Radio Blog - Amateur radio blog about Homebrew equipment,ham radio antennas, satellites, QO-100 operations, rf amplifiers, 2m ldmos amplifier, 70cm ldmos amplifier, 23cm ldmos amplifier
    [ Hits: 115 | Votes: 3 | Rating: 8.67 ]
Radio Equipment : HF Transceivers : Yaesu FT-817
  • Yaesu FT-817 Audio Enhancement: Heathkit-inspired Homebrew Project - Inspired by Heathkit, author aimed to enhance his Yaesu FT-817 with audio and RF processing. Design goals included a compact enclosure, PCB simplicity, matching jacks, a visual meter, and a built-in signal generator. Despite challenges in finding a suitable compressor IC for a 5V DC mic jack, he chose the Analog Devices SSM2165/2166 series. Prototyping with a solderless breadboard, author planned a PCB layout for its versatile performance in communication use.
    [ Hits: 80 | Votes: 1 | Rating: 2 ]
Technical Reference : Amplifiers : HF Amplifiers Technical Reference : Batteries Technical Reference : Batteries : Battery Charger
  • Battery Charger for Hand Held Radio Battery Packs - This is a handy little charger that can provide a charging current of up to 120 mA continuously for batteries in the range up to 12 volts. The supply is housed in a small plastic enclosure 90 x 55 x 32 mm.
    [ Hits: 88 | Votes: 0 | Rating: 0 ]
Technical Reference : Homebrew Technical Reference : Software Defined Radio
  • Homebrew uSDX TRX  new - The Homebrew uSDX SDR TRX is an experimental transceiver primarily designed for CW and Digital modes due to limitations in meeting FCC requirements for SSB. Developed from the QRP Labs QCX, it incorporates advanced SDR features while utilizing an 8-bit ATMEGA328P. The µSDX community fosters open-source development with various design streams and versions, encouraging collaboration and sharing among enthusiasts.
    [ Hits: 45 | Votes: 0 | Rating: 0 ]

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