RFI? In my shack? - It’s more likely than you think.

RFI is something I was introduced to very early on while operating end-fed antennas.

Why is my USB connection to the radio dropping as soon as it goes into TX? RFI
Why does my waterfall just display noise when I connect it to USB? RFI
Why does my noise floor jump to S9 when a new appliance arrives in the house? RFI!