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james1969

Responses from james1969

high frequency intermittent noise
Here is some interesting shielding:https://hollandshielding.com/content/Filemanager/PDF_Catalog%20cable%20shielding%20[English]_November-18-2010-219pm.pdf  
Let's talk power cords
toddverrone759 posts11-16-2017 9:16am... Then I made great DIY cords and heard a bigger improvement. May I ask how you made it? 
high frequency intermittent noise
@jea48 The signal strength is an audible on the Analyzer, not a visual indicator, the speaker emits the raw signal noise.  I walked around on my floor and the Analyzer was pretty quiet.  I circled the entire floor...nothing. 
high frequency intermittent noise
@almarg Terrific find. That would explain why some days it’s quiet, and other days it’s busy. Early mornings 4am to about 11am it’s quiet most days. And it goes on late into the evenings. Yesterday it was very busy all day long.I also used the Hf3... 
high frequency intermittent noise
Playing with the Hf35c Rf Analyzer I pointed it to the cell towers across the street, and the noises it makes is higher up in in the frequency range of 1600 - 1900MHz.  Where as the frequency my stereo is picking up is in the 700 - 800MHz range.  ... 
high frequency intermittent noise
Yes, concrete and brick, 14" thick barrier wall. I’m in a concrete box basically with brick on the outside.I did not ground the aluminum foil the first try.  I will try again. 
high frequency intermittent noise
For those who thought the noise is GSM, I did correlate the noise with the Hf35c Rf Analyzer, but the device only correlated the noise, did not show me the frequency.  I think it was a defective unit in that the display did not work properly. 
high frequency intermittent noise
Tin foil had no affect on the power cord. 
high frequency intermittent noise
@whart Are you thinking tin foil as well? 
high frequency intermittent noise
Well...on the positive side, I've eliminated a ground loop, and have reduced the noise floor in the music quite a bit.  The Nordost QKore took care of my ground loop issue, and the Furman P-2400 IT reduced my noise floor.  Does anyone have any exp... 
high frequency intermittent noise
I just got off the phone with Rob at Furman. He’s a great guy, been in the pro-audio business for 24 years, 16 at Furman. He says he’s seen music studio’s go through the same issue, all of a sudden an antenna gets put up and there’s nothing to do ... 
high frequency intermittent noise
I don't, I will go and get some... 
high frequency intermittent noise
The power cord is my antenna, I switched to a non-audiophile power cord and was able to move the power cord around, up, down, and around (could never do that with what I am using), and yes, I could affect the noise.I'm wondering if I'm now in the ... 
high frequency intermittent noise
I found a set of RCA shorting plugs. I turned everything off except for one mono block, inserted the RCA shorting plug, and the noise is still present.I tried a different power cord, and the noise is still present.I tried an XLR cable between my p... 
high frequency intermittent noise
I thought it was my interconnects.  I turned off everything except my amps, then I disconnected the interconnects, the noise disappears for a while...but reappeared.  Maybe my speaker cables are suspect too...