About: http://webisa.webdatacommons.org/451338486

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	Only two receivers and one transmitter were available for the three VHF channels, so the receivers were changed from time to time among them to get the best radio reception and information.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com