While it was close enough to catch broadcasts of Phillies baseball and Eagles football, it was far enough away to be isolated from most of the brutality associated with the city of Brotherly Love.
Each satellite carries an incredibly accurate atomic clock and broadcasts a regular time signal as well as precise information on its location.
DAB has the capabilities to sound stunning and can under the right conditions leave fm broadcasts sounding very poor in comparison.
A monthly series of live broadcasts replaces the lecture mode.
He once sat with the BBC head of outside broadcasts, Peter Dimmock, on a plane.