ferrite balun

ferrite balun

Antennas : Baluns

• OH7SV Windom baluns - Windom baluns for kilowatt range made with two ferrite toroidal cores amidon ft-140-61 and another schema with two ferrite rods
  [ Hits: 3834 | Votes: 11 | Rating: 7.64 ]
• QRP Balun: A DIY Project - DIY project of a QRP Balun. Using a high permeability ferrite rod and an old B&W dipole center insulator, he constructs a choke type balun for QRP use. The balun aims to create as much inductance as possible at HF, offering a high impedance to common mode currents
  [ Hits: 59 | Votes: 0 | Rating: 0 ]
• Baluns and Ferrites Basics - Unlock the secrets of RF signal optimization in a presentation covering Balun essentials, diverse types, SWR Analyzer checks, revealing results, Ferrite impedance measurements, and practical applications on feeders and house conductors.
  [ Hits: 198 | Votes: 3 | Rating: 9.67 ]

• Low cost 1:1 balun - A balun don't depend on use of ferrite beads, but use steel wool to attenuate any RF on the outer braid
  [ Hits: 6904 | Votes: 8 | Rating: 4.88 ]
• How to Build a UN-UN - Building a 1:1 balun, aka un-un, with an Amidon Ferrite toroid core T 200
  [ Hits: 1063 | Votes: 6 | Rating: 4.17 ]
• Sorbie Balun and Bottle Choke - Homebrew a 1:1 balun consistsing of 4+4 turns of mini coaxial cable over a large ferrite core by m0pzt
  [ Hits: 703 | Votes: 1 | Rating: 1 ]
• Ferrite Balun for HF - Diagram and sample ferrite balaun for 1.8-30 MHz
  [ Hits: 2075 | Votes: 7 | Rating: 9.14 ]
• How to build a Coax Balun 1:4 and 1:1 - An air-wound balun made with coaxial cable can not become saturated because no powder iron or ferrite core is present. In this article author explains and compare coax baluns to ferrite baluns with comparison tables and detailed pictures
  [ Hits: 577 | Votes: 8 | Rating: 8.63 ]

• The Guanella 1:4 balun - A cost effective current-mode 1:4 balun can be constructed from two lengths of coax, two ferrite rods, some electrical tape, cable ties, a length of PVC water-pipe and some connectors. This form of 1:4 current-mode balun is named after G. Guanella.
  [ Hits: 3636 | Votes: 1 | Rating: 10 ]
• 4:1 QRO Balun - A home made 4:1 Ferrite QRO Bal-un with a FB 241-61 Type K
  [ Hits: 813 | Votes: 5 | Rating: 6 ]

• A model of the W2DU 1:1 choke balun - Notes on making the W2DU choke balun by placing several ferrite sleeves around a coaxial cable.
  [ Hits: 9716 | Votes: 7 | Rating: 2.29 ]

• OH7SV Matti Hohtola Ham Projects - The most modern QRP transceiver in 2004,Direct Conversion HF Transceiver with DDS LO, 50 ohm to 200 ohm HF wide band transformers, Wilkinson splitter for RX measurements, Windom baluns 2001/2004, Ferrite rod antenna for 80 meter, Magnetic Loop Antenna for 80 m, Mascot Switched PSU 9320 modification to 8A peak current, 150W MOSFET linear amplifier for 80m, 80 m HF SSB/CW Transceiver
  [ Hits: 20374 | Votes: 36 | Rating: 8.11 ]

• Palomar Engineers - RFI Kit, ferrite cores, baluns, loop antennas, antenna tuners and various accessories
  [ Hits: 7897 | Votes: 16 | Rating: 5.87 ]
• Amidon Inc. - Ferrite Toroids. Iron Powder Toroids. Ferrite Beads. Split Cores. Cable clamp-ons. Balun Cores. W2FMI Baluns and Ununs. Inductive components for EMI Suppression and RFI Suppresion, power supplies, HAM radio.
  [ Hits: 2082 | Votes: 4 | Rating: 5.75 ]
• ON7FU Ferrite Applications - Professional constructed BALUNs,UNUNs and Line Isolators for Amateur Radio.
  [ Hits: 331 | Votes: 2 | Rating: 7 ]

• Ham Goodies - Amateur Radio goodies for not only the Shack, but also a range of outdoor/portable kit. Ferrite toroids, RTL SDR, Un-uns and Baluns for antennas and RF Filters. Based in the UK.
  [ Hits: 145 | Votes: 0 | Rating: 0 ]

• mini Ring-Core-Calculator - Calculate windings on ferrite cores - The program can be used to calculate inductors (coils) and their number of turns on ferrite cores, ferrite shells and air coils. These can be used for baluns, Ununs, bandpass filters, low pass filters, resonant circuits, and more. The technical specifications of the cores are already integrated in the program. Application is free and runs on Windows 32 bit versions only. To make it run on Windows 10 64 bit need to be unzipped in a single folder.
  [ Hits: 398 | Votes: 1 | Rating: 1 ]

• A Ham's Guide to RFI, Ferrites, Baluns, and Audio Interfacing - Understanding and solving RF interference problems using ferrite
  [ Hits: 1370 | Votes: 5 | Rating: 9.4 ]
• Guide to RFI - A amateur radio guide to RFI, ferrites, baluns, and audio interfacing by K9YC
  [ Hits: 787 | Votes: 1 | Rating: 10 ]
• Cost-effective ferrite chokes and baluns - In this article the author describes some new designs of ferrite loaded chokes for suppressing unwanted common mode currents at HF applied to feed lines like choke baluns, but also in the shack, applied to various coaxial, mains and data cables
  [ Hits: 864 | Votes: 5 | Rating: 6 ]