All of the transmitters in the Wash/Balt/Annapolis area are at least 25-30 miles from me and I'm on a peninsula oriented NW-SE. Towers are NW, N and SW of me, with my mostly listened to stations 45-60 miles away. The area I'm in is at sea level (<less than 100Ft ASL)and is a notoriously lousy area for FM Stereo. FM MONO is not really a problem. The closest station with a 1/2 decent transmission is WLIF (101.9) which gives me a 3 of 5 on any receiver I use. The tower (1500 ft) is approx 23 miles away. The majority of the stations show between 1.5 to 2.5 and vary during the day and night. So any unit with a Stereo Beam Dances in FM usually with the low frequency beat. Some more than others depending on how well or poorly they are aligned since the factory alignment.