A distributed antenna system, comprising: a first master host unit configured to communicate analog signals with at least a first service provider interface using a first set of bands of analog spectrum, wherein the first master host unit is further configured to communicate digitized spectrum in first N-bit words over at least a first digital communication link of a plurality of digital communication links (114 coupled to the first master host unit and second N-bit words over at least a second digital communication link of the plurality of digital communication links coupled to the first master host unit; the first master host unit further configured to convert between the first set of bands of analog spectrum and the first N-bit words of digitized spectrum, the first master host unit further configured to convert between the first set of bands of analog spectrum and the second N-bit words of digitized spectrum; a first hybrid expansion unit communicatively coupled to the first master host unit by the first digital communication link of the plurality of digital communication links and configured to communicate the first N-bit words of digitized spectrum with the first master host unit across the first digital communication link, the first hybrid expansion unit further configured to convert between the first N-bit words of digitized spectrum and a second set of bands of analog spectrum, wherein the first hybrid expansion unit is further configured to communicate the second set of bands of analog spectrum across a first analog communication link coupled to the first hybrid expansion unit; and a first analog remote antenna unit communicatively coupled to the first hybrid expansion unit by the first analog communication link and configured to communicate the second set of bands of analog spectrum with the first hybrid expansion unit across the first analog communication link, the first analog remote antenna unit further configured to transmit and receive first wireless signals over a first plurality of air interfaces; a first digital remote antenna unit communicatively coupled to the first master host unit by the second digital communication link of the plurality of digital communication links and configured to communicate the second N-bit words of digitized spectrum with the first master host unit across the second digital communication link, the first digital remote antenna unit further configured to convert between the second N-bit words of digitized spectrum and a third set of bands of analog spectrum, the first digital remote antenna unit further configured to transmit and receive second wireless signals over a second plurality of air interfaces; and wherein the first master host unit, the first hybrid expansion unit, the first analog remote antenna unit, and the first digital remote antenna unit are synchronized in time and frequency. a first master host unit configured to communicate analog signals with at least a first service provider interface using a first set of bands of analog spectrum, wherein the first master host unit is further configured to communicate digitized spectrum in first N-bit words over at least a first digital communication link of a plurality of digital communication links (114 coupled to the first master host unit and second N-bit words over at least a second digital communication link of the plurality of digital communication links coupled to the first master host unit; the first master host unit further configured to convert between the first set of bands of analog spectrum and the first N-bit words of digitized spectrum, the first master host unit further configured to convert between the first set of bands of analog spectrum and the second N-bit words of digitized spectrum; a first hybrid expansion unit communicatively coupled to the first master host unit by the first digital communication link of the plurality of digital communication links and configured to communicate the first N-bit words of digitized spectrum with the first master host unit across the first digital communication link, the first hybrid expansion unit further configured to convert between the first N-bit words of digitized spectrum and a second set of bands of analog spectrum, wherein the first hybrid expansion unit is further configured to communicate the second set of bands of analog spectrum across a first analog communication link coupled to the first hybrid expansion unit; and a first analog remote antenna unit communicatively coupled to the first hybrid expansion unit by the first analog communication link and configured to communicate the second set of bands of analog spectrum with the first hybrid expansion unit across the first analog communication link, the first analog remote antenna unit further configured to transmit and receive first wireless signals over a first plurality of air interfaces; a first digital remote antenna unit communicatively coupled to the first master host unit by the second digital communication link of the plurality of digital communication links and configured to communicate the second N-bit words of digitized spectrum with the first master host unit across the second digital communication link, the first digital remote antenna unit further configured to convert between the second N-bit words of digitized spectrum and a third set of bands of analog spectrum, the first digital remote antenna unit further configured to transmit and receive second wireless signals over a second plurality of air interfaces; and