Many radio hams suffer an unbearable baseline noise floor from solar panel installations.  Assuming you have followed the procedures and techniques for identifying your noise source, and confirmed it’s a solar system, you’re probably experiencing something like this.

This example is from a VK3 amateur where the following solar inverter system was identified as the culprit – AP Systems Model:APS YC-500A.  This system uses micro-inverters for each panel.  Note, this is one sample of this system provided by a local ham.  It may not be representative of a larger sample.