About: http://webisa.webdatacommons.org/210963699

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	For best performance, the antenna must be placed on a metal surface, such as the roof of a vehicle, so that a ground plane is formed.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com