[listerone]

I get very good reception about 98% of the time.Occasionally,when driving on the Mass Pike west of Worcester (for example) I get brief dropoffs when going past those rock "cliffs" you see.I've always assumed that it was because the "cliffs" block the antenna's view of the southern horizon which is essential for satellite radio.Anything that blocks that view...hills/mountains/cliffs,tall buildings,etc...can cause dropoffs.