Ptss .. once again a simple question has a complex answer that requires looking at the problem before applying a solution
How about that fiber that's supposed to block
hi frequencies. Any good? Best way to use?
...
There are many types of shielding tapes used for various purposes ... without knowing which one you are referring to I canÂt comment or speculate on itÂs effectiveness
Some of the problem stems from the audiophileÂs perception of the word ... Noise... or maybe my itÂs just my interpretation of it
I prefer the word ... Interference ... as it is two fold .. electrical and magnetic
I define ÂNoise as the additional voltage that is added to the original signal and rides on top of it where it is carried forward to the next stage and it and the original signal are amplified and reproduced
The other side of the equation is the ... Magnetic interference that hardly anyone talks about ... it distorts the signal bending it out of shape
You need two different type of traps to capture each .. so addressing the ÂNoise Issue in my mind only treats the noise riding on the original signal and does nothing for the Magnetic interference that distorts the signal reducing itÂs efficiency
It takes 3 elements for Interference ... (electrical noise and magnetic distortion)... to propagate
You need a emitter or transmitter that sends or transmits the offending frequencies ... a conduit to carry the signal and interference ... and a receiver that will accept and reproduce this interference
If you eliminate any one of these 3 elements .. the problem goes away
Interference can be ÂConducted or that which is already coupled to the signal and riding on the conductor and ... ÂCoupled .. or Airborne that which couples to the conductor which is behaving like an antenna and receiving the interference
Dissipating Airborne interference (noise and distortion) starts with blocking the emitters/transmitters ... digital chips spew RF in the Gigahertz range so you need a tape that will block and deflect at those frequencies
A word of caution .. when applying a tape to block the emitting chip it needs to be perforated so heat is allow to pass through and not build up in the chip ... trapped heat can over heat the chip causing it to fail
This only deals with the Noise/Electrical side of the interference issues ... transformers emit a stray magnetic field (Airborne) which can couple back into our components ... here RF blocking tape will not work as you need to use a Permeable material that will absorb the stray magnetic fields and dissipate them ... Magnetic interference must be absorbed and dissipated not blocked like RF ... most magnetic interference is in the 100Khz range I believe
IÂm sure youÂve seen components with copper clad chassis .. the copper is a Permeable Material that absorbs the stray magnetic fields generated by the components transformer and dissipates them so that they can not couple back into the component ... IÂm not sure about copperÂs ability to block RF in the Ghz region but it definitely absorbs and dissipates the stray magnetic field from the transformer
Once youÂve blocked the interference caused by the emitter/transmitters .. you can ÂShield sensitive components from these interferences in the same manor ... for electrical noise a sheet of RF blocking aluminum can be position in top or cover of your components ... this will deflect or reflect away or block airborne electrical noise from entering your components and not allowing it to couple to your sensitive equipment and power supplies
To block the Magnetic Airborne interference (stray magnetic fields) you again need a permeable material that will absorb and dissipate the stray magnetic field ... stray magnetic fields can not be blocked and reflected ... they must be absorbed and dissipated ... so you need more than one type of trap to complete the job
I mentioned a third alternative in my original post ... the Audio Magic Next Gen Plus ( I use two of them ) when placed inside your component will act as a sponge absorbing both electrical and magnetic interference by transmitting a signal that is equal in frequency and amplitude but opposite in phase
As you can see itÂs a complex series of issues that needs to be looked at from many different angles and treated in various way
Sorry I canÂt help you with the Fabric your looking at ... my best advice is ...
Fix what you can and manage the rest
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