- SDR as a RFI site survey tool
- NK7Z
SDR as an RFI site survey tool This article will show how a site survey ...
[ Hits: 255 | Votes: 2 | Rating: 10 ]
- 6m High Pass TVI filter
Are you suffering from TVI Then why not try this filter for size It is ...
[ Hits: 1475 | Votes: 2 | Rating: 3 ]
- A Ham's Guide to RFI, Ferrites, Baluns, and Audio Interfacing
Understanding and solving RF interference problems using ferrite
[ Hits: 1373 | 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 ...
[ Hits: 6115 | Votes: 28 | Rating: 7.97 ]
- ARRLWeb: Computer EMI
How track and solve electrical interference from you computer
[ Hits: 1169 | Votes: 0 | Rating: 0 ]
- Automotive Interference Problems
Installing mobile radios in your new megabucks car can be a frightening proposition especially if ...
[ Hits: 762 | Votes: 1 | Rating: 1 ]
- Behringer HA400 Headphone Amplifier and RFI
- WB5NHL
Removing disturbing RFI from the Behringer HA400 Headphone Amplifier using ferrites and capacitors soldered in ...
[ Hits: 121 | Votes: 2 | Rating: 5.5 ]
- Build an All Band HF Air Core Choke Balun
- hamuniverse
The main function of the Ugly Balun is to help eliminate rf currents from flowing ...
[ Hits: 793 | Votes: 12 | Rating: 7.84 ]
- Choking on RF
The intrepid newcomer encounters common mode problems in a mobile environment Implementing some common mode ...
[ Hits: 1129 | Votes: 1 | Rating: 1 ]
- Common mode chokes
Excellent article on limiting noise using chockes by Chuck Counselman, W1HIS
[ Hits: 5311 | Votes: 12 | Rating: 5.17 ]
- Cost-effective ferrite chokes and baluns
- GM3SEK
In this article the author describes some new designs of ferrite loaded chokes for suppressing ...
[ Hits: 868 | Votes: 5 | Rating: 6 ]
- Detuning Towers
The goal of detuning is not to avoid resonance but rather to minimize re radiation ...
[ Hits: 815 | Votes: 1 | Rating: 10 ]
- Electromagnetics, EMI, EMC, EME, RFI
RADIOING eEngineer RFI EMI information
[ Hits: 1677 | Votes: 6 | Rating: 6.33 ]
- Eliminate problems caused by RFI
- MicroHam
An article by microHam about guidelined to eliminate problems caused by RFI
[ Hits: 394 | Votes: 0 | Rating: 0 ]
- Eliminate QRM from 6 meters band
The circuit described below will substantially reduce or completely eliminate interference from almost any local ...
[ Hits: 1569 | Votes: 1 | Rating: 10 ]
- Eliminate RFI from your Speaker
- AudioHolics
Eliminating RFI/EMI Interference from your Audio System
[ Hits: 497 | Votes: 2 | Rating: 7.5 ]
- EMI Calculator
Does your Amateur Radio system comply to the EMI rules German values implemented ...
[ Hits: 1510 | Votes: 8 | Rating: 6.63 ]
- EMI from Lamps
Radio Frequency Interference To/From touch lamps and dimmers
[ Hits: 890 | Votes: 1 | Rating: 6 ]
- EMI from RF-Driven Lamps
Information about RF driven lamps
[ Hits: 645 | Votes: 0 | Rating: 0 ]
- Feeder Radiation
Connecting centre fed antennas dipoles yagis rhombics loops to coaxial cable unless care is taken ...
[ Hits: 1830 | Votes: 4 | Rating: 8 ]
- Ferrite on Reducing RFI
Using ferrite to reduce radio frequency interference with your PC monitor or antennas with your ...
[ Hits: 2238 | Votes: 0 | Rating: 0 ]
- Filters and Ferrites in EMC
This article is about the characteristics and use of various filters and ferrites for solving ...
[ Hits: 905 | Votes: 0 | Rating: 0 ]
- Find RFI causes in mobile operations
Troubleshooting your power supply in determinig connections to battery alternator and regulator interference and checking ...
[ Hits: 552 | Votes: 0 | Rating: 0 ]
- General Information about RFI/EMI
RFI/EMI RadioFrequency interference/electromagnetic interference by
ARRL Technical Information Service page
[ Hits: 4380 | Votes: 2 | Rating: 2 ]
- Guide to RFI
A amateur radio guide to RFI, ferrites,
baluns, and audio interfacing by K9YC
[ Hits: 787 | Votes: 1 | Rating: 10 ]
- Ham Radio and Solar Power Systems
- K1KP
Can Home Solar Power and Ham Radio Coexist It is possible with minimal interference from ...
[ Hits: 348 | 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 ...
[ Hits: 834 | Votes: 3 | Rating: 1 ]
- Ham Radio TVI in the 21st Century
- VE6EY
Ham radio transmissions can interfere with television reception This is called television interference or ham ...
[ Hits: 322 | Votes: 0 | Rating: 0 ]
- Homebrew RF chocke - Magnetic Longwire Balun
- ON6MU
RF Choke to prevent hf currents on the feedline This Magnetic Longwire Balun MLB makes ...
[ Hits: 3415 | Votes: 3 | Rating: 10 ]
- How eliminate RFI Interference in Off Grid Solar PV Systems
- Mike Thompson
How to solve RFI problems caused by the charge controller which is a PWM type ...
[ Hits: 226 | Votes: 1 | Rating: 5 ]
- How to locate RFI
- NK7Z
I have RFI now what Locating it This article is the first of a three ...
[ Hits: 195 | Votes: 2 | Rating: 10 ]
- I have RFI, now what - Quantification
This article will cover gathering some software tools used for RFI location and removal ...
[ Hits: 228 | Votes: 2 | Rating: 10 ]
- IARU Monitoring System sound files
IARU Region 1 Monitoring System local QRM PSK and FSK systems radars beacons scrambles and ...
[ Hits: 1003 | Votes: 0 | Rating: 0 ]
- Idiot's guide to coaxial cable
- pcs-electronics
A very beginner s guide to coax cables Characteristics detailed comparison of typical coaxial cables ...
[ Hits: 21881 | 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.
[ Hits: 1666 | Votes: 0 | Rating: 0 ]
- Ingnition notes on RFI by K0BG
Removing noise caused by ignition and injection systems
[ Hits: 335 | Votes: 0 | Rating: 0 ]
- Interference Cancelling System
The use of interference signal cancellation has been around for some time The idea is ...
[ Hits: 1869 | Votes: 1 | Rating: 3 ]
- Interference Handbook
Interference to home electronic equipment is a frustrating problem but fortunately there are several ways ...
[ Hits: 4036 | Votes: 2 | Rating: 5.5 ]
- Interferences and filtering
General information on Filter passbands, interferences, TVI and RFI problems
[ Hits: 1172 | Votes: 1 | Rating: 10 ]
- Intermodulation
Intermodulation distortion commonly known as Intermods is a type of interference that can occur in ...
[ Hits: 543 | 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 ...
[ Hits: 4858 | Votes: 10 | Rating: 8.7 ]
- LED Lights In The Shack
- VE7SL
Effects and intereferences caused by LED lights in the shack
[ Hits: 671 | Votes: 1 | Rating: 10 ]
- Line Isolator System
A system view of the line isolator
[ Hits: 1683 | Votes: 1 | Rating: 10 ]
- Locating Power Line Noise
- Stu Phillips
RF interference from power lines is caused by arcing as high voltage electricity bridges a ...
[ Hits: 428 | Votes: 0 | Rating: 0 ]
- Locating RF Interference at HF
- W0IVJ
A proven and practical approach to dealing with RFI from grow lights and more ...
[ Hits: 1308 | Votes: 0 | Rating: 0 ]
- Phase Noise.
This is perhaps the most important parameter in many oscillators and it deserves an in ...
[ Hits: 614 | Votes: 0 | Rating: 0 ]
- Phasing out Interference
Phasing out interference, another look
[ Hits: 416 | Votes: 2 | Rating: 3 ]
- Prevention and Suppression of RF Interference to Audio Systems
- Jim Brown
In this study the author builds upon Muncy s research demonstrating that radio frequency current ...
[ Hits: 49 | Votes: 0 | Rating: 0 ]
- QRM.guru
- QRM.guru
QRM guru has been developed to assist radio hams in dealing with RF noise This ...
[ Hits: 209 | Votes: 0 | Rating: 0 ]
- Resolving 6 Meter Amateur Interference
Transmitting operations in the 50 54 MHz range offer some unique problems that over the ...
[ Hits: 319 | Votes: 0 | Rating: 0 ]
- RF in shack with vertical and longwire antennas
Why a vertical antenna or longwire antenna might require a balun
[ Hits: 4800 | Votes: 5 | Rating: 7.6 ]
- RF in the Ham Shack
Ham Station Desk Radio Equipment Ground
[ Hits: 644 | Votes: 0 | Rating: 0 ]
- RF Problems and the HF Vertical Antenna
- N4ZOU
Are you having RF problems in the shack since you put up your HF vertical ...
[ Hits: 1585 | Votes: 9 | Rating: 6.33 ]
- RF-Quiet Solar PV for Ham Radio
- KA7OEI
This article discusses the potential for solar power systems to coexist harmoniously with amateur radio ...
[ Hits: 78 | Votes: 1 | Rating: 1 ]
- RFI - Intermodulation
Getting squeaks and squawks from your H T Are pagers crunching your mobile rig s ...
[ Hits: 674 | Votes: 2 | Rating: 5.5 ]
- RFI Archives
RFI mailing list at contesting.com
[ Hits: 727 | Votes: 0 | Rating: 0 ]
- RFI on Samsung HDTV
RF is causing strange issues on the touch sensor buttons controlling inputs volume channels on ...
[ Hits: 326 | Votes: 0 | Rating: 0 ]
- RFI problem on Samsung TV
- on4ww
A workaround to common RF interference on Samsung TV LED causing several issues like changing ...
[ Hits: 550 | Votes: 2 | Rating: 7 ]
- Sci.Electronics : RFI/EMI Info
Dealing with Computer generated RFI/EMI by Daniel 9V1ZV
[ Hits: 663 | Votes: 0 | Rating: 0 ]
- Simple anti-static device
With all the wire you have out you may run into a problem with static ...
[ Hits: 901 | Votes: 1 | Rating: 1 ]
- Solar Panel and Ham Radio
- K1KP
If you are having problems with RFI from Solar Panels this document from QST provides ...
[ Hits: 88 | Votes: 0 | Rating: 0 ]
- Stop RFI from Solar PV Systems
- WB8ERJ
Stop EMI RFI Interference in Off Grid Solar PV Systems in this article the author ...
[ Hits: 82 | Votes: 0 | Rating: 0 ]
- Telephone Interference
Telephone EMI questions and answers on how to solve interference problems to phone lines ...
[ Hits: 1024 | Votes: 0 | Rating: 0 ]
- Television channel 11 interference.
Solving interference from television channel 11 on 144MHz transverters by Chris Cox N UK G4JEC ...
[ Hits: 521 | Votes: 1 | Rating: 1 ]
- The battle with massive RFI problems in the shack
- KC9ON
This fall winter 2 events has happened at about the same exact time I finally ...
[ Hits: 96 | Votes: 0 | Rating: 0 ]
- The EMI - RFI page
Article on radio frequency interferences with a long list of common RFI cause like Plasma ...
[ Hits: 335 | Votes: 0 | Rating: 0 ]
- The myth of SWR causing coax radiation
- IZ2UUF
There are several reasons that can cause coax line radiation most of them are related ...
[ Hits: 752 | Votes: 2 | Rating: 6 ]
- The truth about ferrites
- QRM.guru
Articles on the correct placement of ferrite noise suppressors are common but little has been ...
[ Hits: 388 | Votes: 2 | Rating: 9.5 ]
- The Woodpecker Tuning aid
This little gadget is that it allows you to tune up at full peak output ...
[ Hits: 4262 | Votes: 2 | Rating: 7.5 ]
- Track down television interference
Nearly half of all reception problems are due to deficiencies or faults in the television ...
[ Hits: 402 | Votes: 0 | Rating: 0 ]
- TVI and BCI Filters
- Christoph Petermann
TVI and BCI bandpass and bandstop filters in SMD technique. Schematics and images.
[ Hits: 4329 | Votes: 6 | Rating: 5 ]
- TVi Basics - making filters
- HS0ZEE
TV Interference filters making TVI filters coaxial filters to eliminate TV interferences caused by radio ...
[ Hits: 1027 | Votes: 0 | Rating: 0 ]
- TVI Filter schematic
A simple TVI Filter schematic
[ Hits: 415 | Votes: 0 | Rating: 0 ]
- TVI Filters
- G4WPW
High pass filter schematics for TVI and examples of finished filters
[ Hits: 1007 | Votes: 5 | Rating: 7.6 ]
- Understanding computer-generated RFI
- NU1N
Radio Frequency Interference RFI has always been a source of concern for the Radio Amateur ...
[ Hits: 84 | Votes: 0 | Rating: 0 ]
- Undestanding TV and Radio interference
- W1FB
Ham radio interference to home entertainment devices is a matter we cannot dismiss easily Fortunately ...
[ Hits: 427 | Votes: 0 | Rating: 0 ]
- VK5BR : Intermodulation
Intermodulation Performance and Measurement of Intermodulation Components by Lloyd Butler VK5BR First published in Amateur ...
[ Hits: 601 | Votes: 1 | Rating: 10 ]
- Where Does the Power Go
- W5DXP
An Energy Analysis at an Impedance Discontinuity in an RF Transmission Line
[ Hits: 741 | Votes: 3 | Rating: 10 ]