About: http://webisa.webdatacommons.org/117754163

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	The demodulated signals discussed above can also be sent directly to the headphones or audio circuit 60 of the non-linear junction detector 12 to allow the operator to audibly distinguish between the different types of devices.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com