About: http://webisa.webdatacommons.org/315816336

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A disadvantage of PCM systems is the increasing of the necessary bandwidth which the code-modulated signal has in comparison with other types of signals.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com