A distributed antenna system comprising: a base station network interface ; and a remote antenna unit communicatively coupled to the base station network interface, the remote antenna unit including an antenna, the remote antenna unit configured to: receive a radio frequency band signal from a subscriber unit; convert the radio frequency band signal into a data stream; and communicate the data stream with the base station network interface ; and wherein the base station network interface is configured to: convert the data stream or a signal derived from the data stream into a digital communication signal, wherein a master reference clock is embedded in the digital communication signal, wherein the master reference clock is distributed between various components of the distributed antenna system to keep the various components of the distributed antenna system locked to a single clock; and communicate the digital communication signal including the master reference clock to an external device external to the distributed antenna system, the external device configured to lock its clock to the master reference clock embedded in the digital communication signal. a base station network interface ; and a remote antenna unit communicatively coupled to the base station network interface, the remote antenna unit including an antenna, the remote antenna unit configured to: receive a radio frequency band signal from a subscriber unit; convert the radio frequency band signal into a data stream; and communicate the data stream with the base station network interface ; and wherein the base station network interface is configured to: convert the data stream or a signal derived from the data stream into a digital communication signal, wherein a master reference clock is embedded in the digital communication signal, wherein the master reference clock is distributed between various components of the distributed antenna system to keep the various components of the distributed antenna system locked to a single clock; and communicate the digital communication signal including the master reference clock to an external device external to the distributed antenna system, the external device configured to lock its clock to the master reference clock embedded in the digital communication signal. receive a radio frequency band signal from a subscriber unit; convert the radio frequency band signal into a data stream; and communicate the data stream with the base station network interface ; and wherein the base station network interface is configured to: convert the data stream or a signal derived from the data stream into a digital communication signal, wherein a master reference clock is embedded in the digital communication signal, wherein the master reference clock is distributed between various components of the distributed antenna system to keep the various components of the distributed antenna system locked to a single clock; and communicate the digital communication signal including the master reference clock to an external device external to the distributed antenna system, the external device configured to lock its clock to the master reference clock embedded in the digital communication signal. convert the data stream or a signal derived from the data stream into a digital communication signal, wherein a master reference clock is embedded in the digital communication signal, wherein the master reference clock is distributed between various components of the distributed antenna system to keep the various components of the distributed antenna system locked to a single clock; and communicate the digital communication signal including the master reference clock to an external device external to the distributed antenna system, the external device configured to lock its clock to the master reference clock embedded in the digital communication signal. <EOS>