I have a My Antennas EFHW-4010 mounted about 25 feet above the ground on an aluminum mast strung to a tripod across the top of my house that is on my garage. I am using an ICOM 7100, and the system is grounded to an 8 foot copper ground rod driven into the dirt. My problem is that the noise floor on HF during the day ranges from 3 to 5, but when the sun goes down it goes up to 9 and I find it unusable. I live in a rural area not near any high powerlines so don’t know of any outside interference caused by my location. I was speaking to another operator locally today who happens to have the same antenna and he has exactly the same experience. Is this an inherent issue with end fed antennas or is there something I can do to improve this? I emailed My Antennas today, and their response was: “You have classic home-generated noise... if noise increases at night, you need to find the source by switcj=hing breakers in your home... but it could come from far away. The antenna has nothing to do with generating or being prone to noise at night vs Further, the noise floor is different from band to the band too... as well as ionosphere changes. So, if I have “home generated noise”, and it might not even be from my home, how can I filter it out?