- SDR as a RFI site survey tool
SDR as an RFI site survey tool This article will show how a site survey ...
By NK7Z
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Votes: 2 | Rating: 10
- 6m High Pass TVI filter
Are you suffering from TVI Then why not try this filter for size It is ...
Votes: 2 | Rating: 3
- A Ham's Guide to RFI, Ferrites, Baluns, and Audio Interfacing
Understanding and solving RF interference problems using ferrite
Votes: 5 | Rating: 9.4
- Amateur Radio RF Safety Calculator
University of Texas Amateur Radio Club RF Calculator This is a main beam power density ...
Votes: 28 | Rating: 7.97
- ARRLWeb: Computer EMI
How track and solve electrical interference from you computer
- Automotive Interference Problems
Installing mobile radios in your new megabucks car can be a frightening proposition especially if ...
Votes: 1 | Rating: 1
- Behringer HA400 Headphone Amplifier and RFI
Removing disturbing RFI from the Behringer HA400 Headphone Amplifier using ferrites and capacitors soldered in ...
By WB5NHL
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Votes: 2 | Rating: 5.5
- Build an All Band HF Air Core Choke Balun
updated
The main function of the Ugly Balun is to help eliminate rf currents from flowing ...
By hamuniverse
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Votes: 13 | Rating: 8.01
- Choking on RF
The intrepid newcomer encounters common mode problems in a mobile environment Implementing some common mode ...
Votes: 1 | Rating: 1
- Common mode chokes
Excellent article on limiting noise using chockes by Chuck Counselman, W1HIS
Votes: 12 | Rating: 5.17
- Cost-effective ferrite chokes and baluns
In this article the author describes some new designs of ferrite loaded chokes for suppressing ...
By GM3SEK
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Votes: 5 | Rating: 6
- Detuning Towers
The goal of detuning is not to avoid resonance but rather to minimize re radiation ...
Votes: 1 | Rating: 10
- Electromagnetics, EMI, EMC, EME, RFI
RADIOING eEngineer RFI EMI information
Votes: 6 | Rating: 6.33
- Eliminate problems caused by RFI
An article by microHam about guidelined to eliminate problems caused by RFI
By MicroHam
- Eliminate QRM from 6 meters band
The circuit described below will substantially reduce or completely eliminate interference from almost any local ...
Votes: 1 | Rating: 10
- Eliminate RFI from your Speaker
Eliminating RFI/EMI Interference from your Audio System
By AudioHolics
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Votes: 2 | Rating: 7.5
- EMI Calculator
Does your Amateur Radio system comply to the EMI rules German values implemented ...
Votes: 8 | Rating: 6.63
- EMI from Lamps
Radio Frequency Interference To/From touch lamps and dimmers
Votes: 1 | Rating: 6
- EMI from RF-Driven Lamps
Information about RF driven lamps
- Feeder Radiation
Connecting centre fed antennas dipoles yagis rhombics loops to coaxial cable unless care is taken ...
Votes: 4 | Rating: 8
- Ferrite on Reducing RFI
Using ferrite to reduce radio frequency interference with your PC monitor or antennas with your ...
- Filters and Ferrites in EMC
This article is about the characteristics and use of various filters and ferrites for solving ...
- Find RFI causes in mobile operations
Troubleshooting your power supply in determinig connections to battery alternator and regulator interference and checking ...
- General Information about RFI/EMI
RFI/EMI RadioFrequency interference/electromagnetic interference by
ARRL Technical Information Service page
Votes: 2 | Rating: 2
- Guide to RFI
A amateur radio guide to RFI, ferrites,
baluns, and audio interfacing by K9YC
Votes: 1 | Rating: 10
- Ham Radio and Solar Power Systems
Can Home Solar Power and Ham Radio Coexist It is possible with minimal interference from ...
By K1KP
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Votes: 1 | Rating: 9
- Ham Radio Online - Computer Networking RFI
This page is to provide links to resources and information regarding technologies to reduce computer ...
Votes: 3 | Rating: 1
- Ham Radio TVI in the 21st Century
Ham radio transmissions can interfere with television reception This is called television interference or ham ...
By VE6EY
- Homebrew RF chocke - Magnetic Longwire Balun
RF Choke to prevent hf currents on the feedline This Magnetic Longwire Balun MLB makes ...
By ON6MU
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Votes: 3 | Rating: 10
- How eliminate RFI Interference in Off Grid Solar PV Systems
How to solve RFI problems caused by the charge controller which is a PWM type ...
By Mike Thompson
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Votes: 1 | Rating: 5
- How to locate RFI
I have RFI now what Locating it This article is the first of a three ...
By NK7Z
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Votes: 2 | Rating: 10
- I have RFI, now what - Quantification
This article will cover gathering some software tools used for RFI location and removal ...
Votes: 2 | Rating: 10
- IARU Monitoring System sound files
IARU Region 1 Monitoring System local QRM PSK and FSK systems radars beacons scrambles and ...
- Idiot's guide to coaxial cable
A very beginner s guide to coax cables Characteristics detailed comparison of typical coaxial cables ...
By pcs-electronics
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Votes: 28 | Rating: 5.68
- Importance of noise reduction in wires antennas
An old post by John Doty about effects of noise in longwire antenna.
- Ingnition notes on RFI by K0BG
Removing noise caused by ignition and injection systems
- Interference Cancelling System
The use of interference signal cancellation has been around for some time The idea is ...
Votes: 1 | Rating: 3
- Interference Handbook
Interference to home electronic equipment is a frustrating problem but fortunately there are several ways ...
Votes: 2 | Rating: 5.5
- Interferences and filtering
General information on Filter passbands, interferences, TVI and RFI problems
Votes: 1 | Rating: 10
- Intermodulation
Intermodulation distortion commonly known as Intermods is a type of interference that can occur in ...
Votes: 1 | Rating: 10
- K0BG's ham radio mobile operator web site
This site is dedicated to mobile amateur radio operators old and new alike Whether you ...
Votes: 10 | Rating: 8.7
- LED Lights In The Shack
Effects and intereferences caused by LED lights in the shack
By VE7SL
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Votes: 1 | Rating: 10
- Line Isolator System
A system view of the line isolator
Votes: 1 | Rating: 10
- Locating Power Line Noise
RF interference from power lines is caused by arcing as high voltage electricity bridges a ...
By Stu Phillips
- Locating RF Interference at HF
A proven and practical approach to dealing with RFI from grow lights and more ...
By W0IVJ
- Phase Noise.
This is perhaps the most important parameter in many oscillators and it deserves an in ...
- Phasing out Interference
Phasing out interference, another look
Votes: 2 | Rating: 3
- Prevention and Suppression of RF Interference to Audio Systems
In this study the author builds upon Muncy s research demonstrating that radio frequency current ...
By Jim Brown
- QRM.guru
QRM guru has been developed to assist radio hams in dealing with RF noise This ...
By QRM.guru
- Resolving 6 Meter Amateur Interference
Transmitting operations in the 50 54 MHz range offer some unique problems that over the ...
- RF in shack with vertical and longwire antennas
Why a vertical antenna or longwire antenna might require a balun
Votes: 5 | Rating: 7.6
- RF in the Ham Shack
Ham Station Desk Radio Equipment Ground
- RF Problems and the HF Vertical Antenna
Are you having RF problems in the shack since you put up your HF vertical ...
By N4ZOU
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Votes: 9 | Rating: 6.33
- RF-Quiet Solar PV for Ham Radio
This article discusses the potential for solar power systems to coexist harmoniously with amateur radio ...
By KA7OEI
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Votes: 1 | Rating: 1
- RFI - Intermodulation
Getting squeaks and squawks from your H T Are pagers crunching your mobile rig s ...
Votes: 2 | Rating: 5.5
- RFI Archives
RFI mailing list at contesting.com
- RFI on Samsung HDTV
RF is causing strange issues on the touch sensor buttons controlling inputs volume channels on ...
- RFI problem on Samsung TV
A workaround to common RF interference on Samsung TV LED causing several issues like changing ...
By on4ww
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Votes: 2 | Rating: 7
- Sci.Electronics : RFI/EMI Info
Dealing with Computer generated RFI/EMI by Daniel 9V1ZV
- Simple anti-static device
With all the wire you have out you may run into a problem with static ...
Votes: 1 | Rating: 1
- Solar Panel and Ham Radio
If you are having problems with RFI from Solar Panels this document from QST provides ...
By K1KP
- Stop RFI from Solar PV Systems
Stop EMI RFI Interference in Off Grid Solar PV Systems in this article the author ...
By WB8ERJ
- Telephone Interference
Telephone EMI questions and answers on how to solve interference problems to phone lines ...
- Television channel 11 interference.
Solving interference from television channel 11 on 144MHz transverters by Chris Cox N UK G4JEC ...
Votes: 1 | Rating: 1
- The battle with massive RFI problems in the shack
This fall winter 2 events has happened at about the same exact time I finally ...
By KC9ON
- The EMI - RFI page
Article on radio frequency interferences with a long list of common RFI cause like Plasma ...
- The myth of SWR causing coax radiation
There are several reasons that can cause coax line radiation most of them are related ...
By IZ2UUF
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Votes: 2 | Rating: 6
- The truth about ferrites
Articles on the correct placement of ferrite noise suppressors are common but little has been ...
By QRM.guru
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Votes: 2 | Rating: 9.5
- The Woodpecker Tuning aid
This little gadget is that it allows you to tune up at full peak output ...
Votes: 2 | Rating: 7.5
- Track down television interference
Nearly half of all reception problems are due to deficiencies or faults in the television ...
- TVI and BCI Filters
TVI and BCI bandpass and bandstop filters in SMD technique. Schematics and images.
By Christoph Petermann
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Votes: 6 | Rating: 5
- TVi Basics - making filters
TV Interference filters making TVI filters coaxial filters to eliminate TV interferences caused by radio ...
By HS0ZEE
- TVI Filter schematic
A simple TVI Filter schematic
- TVI Filters
High pass filter schematics for TVI and examples of finished filters
By G4WPW
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Votes: 5 | Rating: 7.6
- Understanding computer-generated RFI
Radio Frequency Interference RFI has always been a source of concern for the Radio Amateur ...
By NU1N
- Undestanding TV and Radio interference
Ham radio interference to home entertainment devices is a matter we cannot dismiss easily Fortunately ...
By W1FB
- VK5BR : Intermodulation
Intermodulation Performance and Measurement of Intermodulation Components by Lloyd Butler VK5BR First published in Amateur ...
Votes: 1 | Rating: 10
- Where Does the Power Go
An Energy Analysis at an Impedance Discontinuity in an RF Transmission Line
By W5DXP
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Votes: 3 | Rating: 10