I'm currently in the process of building a new home at the moment. When the sheetrock hadn't been put up, I had the electrical guy run RG-6 to the attic space at the far end of the garage. Now, the area in the attic where the coax runs were placed has a big air handler in the way. The house is on a slab, so the HVAC equipment is all in the attic space. I can't crawl over the equipment to place the antenna in the small area at the far end of the garage. I'm wondering if I can attach one to the rafters above the stairs. I'm thinking about having the electrical guy relocate the coax runs to the top of the attic over the stairs and have the antenna mounted to the top most rafters over the stairs. I've attached a top down view of the attic space from over the garage as reference. There's not much room for storage outside of the HVAC equipment. The only usable space is over the garage since the part over the house will have insulation blown in around the maze of HVAC piping. I'm thinking I can maybe get a medium sized antenna mounted directly above the steps, but I'm fearful that the motor in the air handler will cause a lot of electrical noise to the point that my signal quality won't be great. I have 2 channels in the VHF band in my area that likely won't be receivable when the A/C or heat is running, but I'm wondering about channels in the lower UHF band. One time I can recall that I had an indoor antenna placed near a motorized filter that caused low UHF frequencies to glitch out, but those higher (channels 25 and above) had no problem with reception. Thanks for your time looking at my post and for your advice.