Improve RFI

https://ebay.us/m/Fc9vst
 

thanks map man that’s helpful.  My remote control sensor detector is shown in the link above.  So should I try wrapping the my metal over the antenna or the entire unit?  And should the aluminum wrap go over the my metal, or under, or does it matter?

Fusebox.  It must have been autocorrected. 
Tried switching remotes, no changes.

Tried turning off lights and unplugging everything in the basement, even the components that I want to control with the remote, to see if that changed the RFI indicator, and none of them did.

  What exactly is the Mu Metal supposed to be placed on, if not the Radio switching station?

There is an RFI indicator on the relay part of the remote.  It is on constantly.  The same relay unit is in the upstairs unit and the RFI indicator is never one.

  I have switched remotes as I indicated in posts above between the 2 systems.  No change.

   The tools that I have seen for measuring RFI, in YT videos, don’t isolate the RFI to a single source.  They basically say “There is RFI in the room” and the user then has to try turning of appliances, lights, etc.  I know that I have RFI because the indicator on the unit is on, and I’ve tried all the solutions, to no avail.  So buying another tool that will inform me that I have RFI isn’t in the cards.

First off, I would like to thank everyone who has tried to help here.  My last post sounded snarky and ungrateful.

  Second, a new development.  I placed the the transmitter -relay device on the floor next to the rack.  Previously it had been on the top half of the rack, and then placed on top of a surround that is wall mounted at near the same height.  The RFI light is off now and the Universal Remote works again.

  There is a small window behind  and above the rack .  I am wondering if there has been an increase in RFI from the external environment (I live on a Flight Path for O’Hare Airport, for one thing).  However I don’t understand why the living room remote would not be effected, as the two systems are in parallel on different levels of the home.  Perhaps the weather updated windows in the living room are better for screening RFI?  I am just speculating.

  The floor location isn’t ideal-it might get kicked or placed back on the rack by my wife or someone else-but for now I will leave it there

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