About: http://webisa.webdatacommons.org/449738455

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	RF does not care about classifications.There was an article in the last annual antenna issue of QST describing a broad banded hex multi-band beam but you could just build the 20m section I suppose.
http://www.w3.org/ns/prov#wasQuotedFrom	eham.net