About: http://webisa.webdatacommons.org/191480300

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 filter, such as a bandpass filter or the like, is used to isolate the desired signal and reduce or otherwise eliminate undesired frequencies and reflections generated by the mixer process.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com