2. misc-audio
  3. 194772-74445

Improve RFI

I have terrible RFI in my basement system.  The RFI indicator on the Universal Remote is always on, regardless of where I locate the sensor, and I have to revert back to using the individual remotes for AVR, Blu Ray, etc.  I also have a surround sound system on the main floor; same AVR, same universal remote, and no RFI.  
  The kitchen is on the main floor and all appliances which are usually identified with RFI are in the kitchen.  The lighting is different in the basement and the washer-dryer and firebox are in the basement.

  Everything I can pull up on RFI seems to be from the ham radio world.  They constantly point to the firebox but there doesn’t seem to be any consensus on how to deal with it.

  Any help would be appreciated 

mahler123
sns
3,891 posts
 

As previously posted, a Trifield EMF meter is indispensable for finding sources of RFI. Routers with wifi the worst, hard drives and transformers can be pretty bad.

goldenways
57 posts
 

I bought a TeddyPardo power supply for my main system to replace my modem and router power supply.  Gave them the specs and cable info. The power supply  I received has two outlets - 12V the other 19v with 2 different connection types. Came with very high quality cables. Have been sitting on them for some time.  I’ll install this weekend.

I learned about TeddyPardo off this forum. Everything about them is stellar, website, their questions to me to double check info and their unit & cable build quality. Sent photos of the cheap power supply that came with my modem and router. That closed out the loop for exchange of needed information 

mahler123 OP
3,604 posts
 

I am out of town for a week so I won’t be able to do any more investigations or to see if my new location for the relay is still working.  Will report when I get back.

  I have a follow up question about the mu Metal.  Someone up thread said that it is not to be used around the antenna of relay unit.  My initial thought when it was suggested was that by wrapping it around the antenna it would filter RFI but allow the desired radio frequency of the remote to be read.  I’m just verifying here that this is incorrect (?).  Is the mu metal to be wrapped around the offending source, once identified, of the RFI?  
  I identified a store that sells the mu metal for a few dollars, but it’s in Evanston, an hour drive for me in Oak Park.  The stuff costs 5$/roll online but $30 to ship, so I thought perhaps a drive there and pick the brain of the store staff might be worthwhile, but if I can’t identify the source of the RFI and it needs to be applied to said source then no point 

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