About: http://webisa.webdatacommons.org/244521387

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	FIG. 2 is a graph that illustrates the required echo attenuation needed as a function of transmission delay time;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com