Hi Jim, the panels are approximately 250 feet from my Hexbeam antenna and about 275 feet from my Dipole (160-2m OCF). I have not seen any rise in the noise level (base) on my S meter on my 857 . I am in a small town (10, 500), in central MA, my nearest neighbor is 200 feet from the antennas. Dick Sent from Mail for Windows 10