interference

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Search Results for "interference"

72 links - and 2 categories

Antennas : Feed Lines : Choke
  • Common Mode Choke Theory - A common mode choke may be used to reduce a type of electrical noise known as common mode noise. Electro-magnetic interference (E.M.I.) in the circuit's environment is one source of electrical noise.
    [ Hits: 1575 | Votes: 4 | Rating: 1.00 ]
Antennas : Theory : Antenna Gain
  • Corner reflector antenna - Do you need a high gain antenna? Have you suffered on picking up interference from unwanted direction? You need a directional antenna but a 12 element Yagi will be too attractive!
    [ Hits: 1556 | Votes: 4 | Rating: 3.75 ]
Manufacturers : Accessories
  • BHI Ltd - Noise eliminating products. Remove unwanted background noise and interference leaving only the speech. Clear communications, listen stress free. Dsp noise cancellation solutions.
    [ Hits: 670 | Votes: 1 | Rating: 10.00 ]
Operating Aids : Beginner's Guides
  • About digital modes - The digital modes provide a wonderful opportunity for those of us who would like to work on the HF bands but find CW too difficult and SSB phone prohibitive because of interference problems. The digital modes are easy to set up and get operating, require low power and a narrow band.
    [ Hits: 7186 | Votes: 6 | Rating: 8.00 ]
Operating Modes : 50 Mhz
  • Eliminate QRM from 6 meters band - The circuit described below will substantially reduce or completely eliminate interference from almost any local source whilst leaving the wanted signal relatively unaffected, even though it may be on the same frequencey by TREVOR, G3ZYY
    [ Hits: 1134 | Votes: 1 | Rating: 10.00 ]
Operating Modes : DSP
  • Mfsk - MFSK is an easy-to-use chat mode for real-time amateur contacts, nets and bulletin transmissions, but not intended for contesting or Bulletin Board System (BBS) use. It is a half-duplex non-Automatic Repeat ReQuest (ARQ) forward-error-correcting (FEC) mode. It performs well on long-path fading conditions and in the presence of interference
    [ Hits: 389 | Votes: 0 | Rating: 0.00 ]
Operating Modes : MFSK
  • Mfsk - MFSK is an easy-to-use chat mode for real-time amateur contacts, nets and bulletin transmissions, but not intended for contesting or Bulletin Board System (BBS) use. It is a half-duplex non-Automatic Repeat ReQuest (ARQ) forward-error-correcting (FEC) mode. It performs well on long-path fading conditions and in the presence of interference
    [ Hits: 732 | Votes: 0 | Rating: 0.00 ]
Software : Low Frequency
  • MT Hell - MT-Hell software for 16 bit Soundblaster cards. Sends seven parallel tones with careful dot shaping for minimum interference, and transmits a very nice sound by G3PPT
    [ Hits: 430 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Electronics
  • Ferrite on Reducing RFI - Using ferrite to reduce radio frequency interference with your PC monitor or antennas with your receivers or transceivers.
    [ Hits: 2016 | Votes: 0 | Rating: 0.00 ]
  • 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: 4700 | Votes: 6 | Rating: 9.50 ]
Technical Reference : Filters
  • Interferences and filtering - General information on Filter passbands, interferences, TVI and RFI problems
    [ Hits: 1050 | Votes: 1 | Rating: 10.00 ]
  • The NVARC Ugly Filter Project - Project to build sets of band pass transmitting filters for reducing the interference between HF transceivers operated in close proximity
    [ Hits: 849 | Votes: 4 | Rating: 9.50 ]
  • Band-Pass Filters for HF Transceivers - Do your multiple-transmitter field day or contest efforts suffer from intrastation interference ?
    [ Hits: 3204 | Votes: 2 | Rating: 9.00 ]
Technical Reference : Radio Frequency Interference
  • Television channel 11 interference. - Solving interference from television channel 11 on 144MHz transverters by Chris Cox, NĜUK, G4JEC
    [ Hits: 344 | Votes: 1 | Rating: 1.00 ]
Technical Reference : Radio Frequency Interference : BPL
  • New Developments with PLC in Japan - The Japan Amateur Radio League (JARL) is cautiously watching new developments concerning the commercialization of Power Line Communications (PLC), while continuing to carry out joint experiments with a high speed power line communication promoters' alliance to reduce potential interference to radio communications.
    [ Hits: 242 | Votes: 1 | Rating: 1.00 ]
  • Are you ready for BPL - Broadband over power lines (BPL) is a technique for transmission of high speed data (broadband Internet) over powerlines. Access BPL technology injects radio frequency energy into powerlines which were not designed for transmission of radio frequency energy, and leak substantial energy that causes interference to radiocommunications service
    [ Hits: 554 | Votes: 0 | Rating: 0.00 ]
  • BPL Interference - Zip file taht contains a tutorial section that explains several different BPL technologies
    [ Hits: 465 | Votes: 0 | Rating: 0.00 ]
  • BPL Interference to Radiocommunications - Here are some excerpts from the international radio regulations and fccrules
    [ Hits: 428 | Votes: 0 | Rating: 0.00 ]
  • Broadband over power lines - Compatibility and BPL RF Interference
    [ Hits: 249 | Votes: 0 | Rating: 0.00 ]
  • Bpl interference blocked in europe - Blog post announcing that Ham Radio, shortwave listeners and broadcast band listeners will be protected by Law in Europe
    [ Hits: 239 | Votes: 0 | Rating: 0.00 ]
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