Interesting Pan and Waterfall - Anyone else have this?

The first thing I'd do is ditch that switching PS. Get a good linear supply (like an Astron 35A) - one less source of RFI. Check YouTube - I recall seeing a video posted by someone who used a portable SW receiver to 'sniff' out sources of RFI, quite effectively. GL/73 K3AC

Jim - if you haven't already, it might be worthwhile to reach out to Ring support for their take on things.  I've worked with them before on an unrelated installation issue, and found them helpful and knowledgable. I believe they are located stateside.

Mike - KB1MH

Noise issues are and will always be the most common issue that hams run into.  But here are some additional thoughts. Switching power supplies are not always the principle culprit.  In my own case, I found that, not only was I getting radiated noise, but it was also conducted common mode noise.  Common mode noise is generally noise that travels on a conductor (shield, or wires) from an outside source.  This type of noise is strongest at the lower frequency spectrum.  In the order about 50 kHz and up.  This noise can end up in your receiver by coming in on the power line ground and the line and neutral.  In analog power supply’s the transformer can block it and some can come in on the ground input if filtering is not good. In switching supplies, assuming internal filtering meets part 15 requirements can be the same as an analog PS.  In my case, I found that I had lots of noise from everywhere (even the local AM broadcast stations 6 miles from my house) coming in as common mode noise.  So how does one deal with it?  This noise ranged from below the broadcast frequencies to a little above 20 meters.  At this point I needed to get rid of this noise.  My UPS and DC power supply was not doing it.   So it was time try and build a suitable filter. But how! It came down to choosing the right ferrite materials. I chose #75 and #31 together in series.  The reason for this arrangement was to provide attenuation from below the BC band to at least 14 MHz.  Construction was simple, winding as many turns as possible on each core in series, with the #75 first on the power line side and the #31 on the power supply side.  This worked very well... overall noise dropped 8db for me and reception on the BC band improved with a noise floor moving down to -120 dbm. At the BC band the noise floor was as high as -90 dbm.  Getting control of power line common mode noise made a huge difference up the band, also.  80 meters dropped to -120 dbm,  same for 30 and 40 meters.  20 meters on up improved to -120 dbm to as much as -130 dbm on 10 meters!  When I started 5 years ago with a vertical, I could barely get better then -100 dbm.  Going to all horizontal polarized antennas, placed as high up as possible was biggest improvement.  I know that everyone can’t do this.  But during those high noise times, I used a shielded mag loop for reception on 40 meters to BC band.  The vertical antenna was still best choice for DX at that time.  I am still fighting the noise war as my two remaining noise sources are an LED street lamp and a neighborhood home with some sort of device using switching PS, that I have yet to precisely locate.  That will be another story along with the one for the local power company, and there lack of caring.  

One thing is for sure, once you get the local noise under control the rest of the world rears it’s ugly face.....I’m not through with the local electric company.  It is a cooperative so technically I am a part owner. But It does mean that they listen.  I worked for six years of my working life finding and evaluating electrical/RF noise of all types.  So we will see.