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RFI Page – AA5AU
https://www.aa5au.com/rtty/rfi/#:~:text=One%20symptom%20of%20RFI%20on%20a%20transmit%20audio,your%20transmit%20carrier%2C%20you%20may%20be%20experiencing%20RFI.
RFI In Audio Systems
http://www.audiosystemsgroup.com/AES-RFI-SF08.pdf
Typical Audio Noise Spectrum on “Ground”. Measured between two outlets in my office. -34.3 dBu (16 mV) 11. RF Spectrum Analyzer 0 – 1 MHz. Measured between two different outlets in my office, one a conventional outlet, and one an IG outlet, into a 75 ohm load. 0 Hz 1 MHz. Line Filters Can Add Noise to Ground. 12.
Eliminating RFI/EMI Interference from your Audio System ...
https://www.audioholics.com/audio-video-cables/bulletproofing-your-system-from-interference
Eliminate RFI/EMI noise ingress into your hifi audio system by using proper cabling, shielding, and grounding techniques. “Let our rigorous testing and reviews be your guidelines to A/V equipment – not marketing slogans”
RFI Audio – ProAudio/Music Electronics – …
http://www.rfiaudio.com/RFIaudio_WP/
We don't use the word "obsolete" here at RFi Audio. If your main squeeze is on the fritz, you probably don't want to hear that word either. We specialize in taking care of tube and solid state amps, mixers, outboard gear, analog and digital recorders, and much, much more.
How does Radio Frequency Interference (RFI) occur?
https://service.shure.com/s/article/how-does-radio-frequency-interference-rfi-occur?language=en_US
Radio Frequency Interference (RFI) in a sound system can be defined as an unwanted audible signal that invades the sound system via a radio frequency (RF) signal. Typical sources of RF signals: FM radio station, AM radio station, walkie-talkie, cell phone, Blackberry PDA. If the RFI is audible, it can take many forms: buzz, noise bursts, speech, or music.
Radio Frequency Interference (RFI) - ARRL - Home
http://www.arrl.org/radio-frequency-interference-rfi
Some of these articles pertain to interference to audio systems from both power and RF sources. The EMI - RFI Page, by Mark Demeuleneere, ON4WW. In this page, Mark provides some interesting background on some of his more memorable RFI experiences in Belgium. As Mark puts it, “It took quite some time just to document these RFI cases.
Troubleshooting Radio Frequency Interference (RFI ...
https://www.prosoundweb.com/troubleshooting-radio-frequency-interference-rfi-problems/
Let’s lay aside the ‘magic fixes” and “voodoo methods” and set forth a methodical procedure to deal with this problem, which is called Radio Frequency Interference (RFI). The key is to “divide and conquer.”. It’s essential that the problem be localized to one part of the sound system. If more than one problem exists, these tests will help disclose that also.
Radio Frequency Interference (RFI) in Mics
https://repforums.prosoundweb.com/index.php?topic=3734.0
RFI comes in two audible forms: distinct radio station signals mixed in with the mic's audio, and noise hash, whose presence is much harder to hear and properly identify as RFI, because it appears as featureless background white noise.
RFI TIPS AND TRICKS for the ham radio operator
http://hamuniverse.com/rfi.html
Modern electronic telephones are potentially susceptible to radio-frequency interference [RFI] because they contain many silicon diodes which act as crystal rectifiers. The crystal rectifiers convert inaudible, RF energy into audio-frequency energy which can be heard in the earphone.
EMI Filter/RFI Filter: A Guide to the RF Interference Filter
https://www.thomasnet.com/articles/automation-electronics/RFI-EMI-Filters/
RFI/EMI Filters. This article discusses the RFI filter (RFI stands for radio frequency interference) and EMI filter (electromagnetic interference filter)–aka RF interference filter. EMI, or RFI, is a type of electric or electronic emission that can degrade, impair or prevent electrical circuit performance. These emissions originate from both manmade and natural sources, and can be …
RF in Audio Help | QRZ Forums
https://forums.qrz.com/index.php?threads/rf-in-audio-help.236002/
HF.RF out > SWR Cn801 > LDG Auto tuner > Switch box > RG213 > Gap titan Dx On the 751 i use a manual tuner MFJ 949E 751 lay out: HF.RF out > Tuner with built in SWR meter > Switch box > RG213 (same as 706 feed line) > Titan Gap antenna why does one radio have R.F on the audio, and the other dose not?
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