{"id":"S85082383","label":"Maximum usable frequency (Radio)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85082383","normalized_label":"maximum usable frequency (radio)","broader":["http://id.loc.gov/authorities/subjects/sh85067840","http://id.loc.gov/authorities/subjects/sh85110422","http://id.loc.gov/authorities/subjects/sh85110472"],"aliases":["Frequency, Maximum usable (Radio)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85082383","provider":"lcsh","revision":"45da0c158d9ded89","taxonomy_revision":"f050b5d4780b1289","title":"Maximum usable frequency (Radio)","url":"/topics/S85082383","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326730892489917952","address_version":"morton4x16-v1","coordinates":[0,20,18692,15360],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}