ferrite cores

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ferrite cores

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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: 3831 | Votes: 11 | Rating: 7.64 ]
Antennas : Receiving
  • Chokes and Isolation Transformers for Receiving Antennas  new - Chokes and isolation transformers are essential for receiving antennas to mitigate common mode current, which induces noise and interferes with signal quality. Common mode chokes, formed by winding feedline through ferrite cores, block unwanted current effectively. Proper selection of core material and winding turns ensures resonance near the operating frequency, reducing interference. Isolation transformers further minimize interference, crucial for multi-transmitter stations.
    [ Hits: 52 | Votes: 1 | Rating: 9 ]
Manufacturers : Baluns
  • Palomar Engineers - RFI Kit, ferrite cores, baluns, loop antennas, antenna tuners and various accessories
    [ Hits: 7895 | 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: 2080 | Votes: 4 | Rating: 5.75 ]
Manufacturers : Filters
  • Olympix - Performance RFI Filters that work right at the noise sources, ferrite cores.
    [ Hits: 296 | Votes: 0 | Rating: 0 ]
Shopping and Services : Electronic Components
  • Ferrite Shop - Ferrite-shop is an on-line shop for ferrite toroids, cable cores and cable clamps based in The Netherlands
    [ Hits: 174 | Votes: 0 | Rating: 0 ]
Software : Circuit Design
  • 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: 390 | Votes: 1 | Rating: 1 ]
Technical Reference : Amplifiers : HF Amplifiers
  • LA7MI 40W RF Amplifier for 80m - 40W Linear Power amplifier with FETs for 80m Some notes about saturation in ferrite- and iron-cores. Written by LA7MI Stein Torp, N-5005 Bergen
    [ Hits: 3024 | Votes: 2 | Rating: 1.5 ]
Technical Reference : Components : Toroids
  • Ferrite information - Ferrite Toroidal Cores, Magnetic Properties of Ferrite Materials, EMI - RFI Suppression Design Considerations, Ferrite Beads, Ferrites for RFI Ferrite Cores for RFI Suppression by CWS ByteMark
    [ Hits: 13699 | Votes: 4 | Rating: 5 ]
  • Ferrite and common-mode choke - Finding the the best ferrite material for a common-mode choke. How to create efficient ferrite cores and how to measure them
    [ Hits: 184 | Votes: 1 | Rating: 10 ]
Technical Reference : Electronics
  • Using ferrite for interference suppression - Excellent guide to using ferrite cores for interference suppression. Understanding and Solving RF Interference and Noise Problems by Jim Brown K9YC Audio Systems Group, Inc. PDF File
    [ Hits: 6152 | Votes: 6 | Rating: 9.5 ]
Technical Reference : Radio Frequency Interference : Noise Reduction
  • DIY EMC/RFI Mains Filter for a Clean Shack - Utilizing snap-on ferrite cores and practical insights, the author enhances their shack's cleanliness against electromagnetic interference. With meticulous experimentation and installation, they improve noise levels across HF bands, reflecting on the effectiveness of their filter in minimizing common-mode disturbances. Updates underscore ongoing refinement and cautionary advice for optimal filtering and radio reception amid changing RF environments.
    [ Hits: 69 | Votes: 1 | Rating: 10 ]

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