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61 links and 1 categories about interference on dxzone.com

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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: 1449 | 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: 1422 | 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: 604 | Votes: 1 | Rating: 10.00 ]
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: 1060 | 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: 373 | 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: 607 | Votes: 0 | Rating: 0.00 ]
Operating Modes : Mobile
  • Choking on RF - The intrepid newcomer encounters common mode problems in a mobile environment. Implementing some common mode chokes will be possible to reduce interferences
    [ Hits: 963 | 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: 388 | Votes: 0 | Rating: 0.00 ]
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: 4056 | Votes: 6 | Rating: 9.50 ]
Technical Reference : Filters
  • Interferences and filtering - General information on Filter passbands, interferences, TVI and RFI problems
    [ Hits: 994 | 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: 770 | Votes: 3 | Rating: 9.33 ]
  • Band-Pass Filters for HF Transceivers - Do your multiple-transmitter field day or contest efforts suffer from intrastation interference ?
    [ Hits: 2857 | Votes: 2 | Rating: 9.00 ]
  • TVi Basics - making filters - TV Interference filters, making TVI filters, coaxial filters to eliminate TV interferences caused by radio frequency
    [ Hits: 737 | Votes: 0 | Rating: 0.00 ]
  • 5th order High Pass VHF Filter  updated - Sometimes many VHF-UHF modern transceivers have problems with BROADCAST Interference and CROSS-modulation from FM commercial broadcast stations this article shows a simple Batteworth HI-Pass VHF Filter to reduce this problem
    [ Hits: 888 | Votes: 7 | Rating: 5.57 ]
Technical Reference : Radio Frequency Interference
  • Television channel 11 interference. - Solving interference from television channel 11 on 144MHz transverters by Chris Cox, NĜUK, G4JEC
    [ Hits: 315 | Votes: 1 | Rating: 1.00 ]
  • Automotive Interference Problems - Installing mobile radios in your new megabucks car can be a frightening proposition - especially if RF from your rig could damage your shiny new roadster
    [ Hits: 645 | Votes: 0 | Rating: 0.00 ]
  • Track down television interference - Nearly half of all reception problems are due to deficiencies or faults in the television receiver, the aerial lead or the aerial. This article will help you to check whether the problem you are having is due to one of these causes.
    [ Hits: 253 | Votes: 0 | Rating: 0.00 ]
  • Television Interference - TVI - VR2XMT article on TVI and how to solve interference problems
    [ Hits: 343 | Votes: 2 | Rating: 5.50 ]
  • Intermodulation - Intermodulation distortion, commonly known as Intermods, is a type of interference that can occur in any non-linear junction.
    [ Hits: 350 | Votes: 1 | Rating: 10.00 ]
  • A Ham's Guide to RFI, Ferrites, Baluns, and Audio Interfacing - Understanding and solving RF interference problems using ferrite
    [ Hits: 802 | Votes: 4 | Rating: 9.25 ]
  • Phasing out Interference - Phasing out interference, another look
    [ Hits: 239 | Votes: 2 | Rating: 3.00 ]
Technical Reference : Radio Frequency Interference : BPL
  • Broadband over power lines - Compatibility and BPL RF Interference
    [ Hits: 214 | 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: 227 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Radio Frequency Interference : Noise Reduction
  • Noise tutorials - Noise foundamentals. Radio frequency interference noise.
    [ Hits: 370 | Votes: 0 | Rating: 0.00 ]
  • Radio Noise - Radio Interferences, QRN, or noise, information by W8JI
    [ Hits: 406 | Votes: 0 | Rating: 0.00 ]
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