About: http://webisa.webdatacommons.org/175713400

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 stable and ???clean??? transmitter is vital when using narrow modes such as PSK31 and it???s variants so as not to cause QRM to nearby stations
http://www.w3.org/ns/prov#wasQuotedFrom	hfradio.org.uk