Radio Frequency Interference

Reducing radio frequency interference

Subcategories:

  • BPL (16)
  • Noise Reduction (32)
  • PLT (2)
    • Trending Links
    • Idiot's guide to coaxial cable
      A very beginner's guide to coax cables. Characteristics, detailed comparison of typical coaxial cables, commonly used connectors, and a few words about SWR.
    • Amateur Radio RF Safety Calculator
      University of Texas Amateur Radio Club RF-Calculator. This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations
    • Common mode chokes
      Excellent article on limiting noise using chockes by Chuck Counselman, W1HIS
    • K0BG's ham radio mobile operator web site
      This site is dedicated to mobile amateur radio operators, old and new alike. Whether you are into HF, or VHF operation, I trust the information presented will increase your enjoyment of our great hobby. With safety as a byword, there are articles on amplifiers, antennas, bonding, impedance matching, installing hardware, mobile equipment, noise and RFI abatement, wiring, and much more. I do my best to keep these articles up to date, and easy to follow.
    • RF in shack with vertical and longwire antennas
      Why a vertical antenna or longwire antenna might require a balun
    • General Information about RFI/EMI
      RFI/EMI RadioFrequency interference/electromagnetic interference by ARRL Technical Information Service page
    • TVI and BCI Filters
      TVI and BCI bandpass and bandstop filters in SMD technique. Schematics and images.
    • The Woodpecker Tuning aid
      This little gadget is that it allows you to tune up at full peak output power, whilst limiting the average power to a fraction of the peak, thereby protecting the PA from meltdown
    • Interference Handbook
      Interference to home electronic equipment is a frustrating problem; but, fortunately, there are several ways to deal with it. This handbook provides a step-by-step process for eliminating the interference
    • Homebrew RF chocke - Magnetic Longwire Balun
      RF Choke to prevent hf currents on the feedline. This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.
    • Ferrite on Reducing RFI
      Using ferrite to reduce radio frequency interference with your PC monitor or antennas with your receivers or transceivers.
    • Interference Cancelling System
      The use of interference signal cancellation has been around for some time. The idea is to use an auxiliary antenna almost any random length of wire in addition to the main receiving antenna
    • Feeder Radiation
      Connecting centre fed antennas, dipoles, yagis, rhombics, loops to coaxial cable, unless care is taken, it is not difficult to end up with feeder radiation resulting in power loss and the radiation characteristics changes
    • Line Isolator System
      A system view of the line isolator
    • Electromagnetics, EMI, EMC, EME, RFI
      RADIOING eEngineer RFI EMI information
    • Importance of noise reduction in wires antennas
      An old post by John Doty about effects of noise in longwire antenna.
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