{"id":"S88000992","label":"Tropospheric scatter communication systems","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh88000992","normalized_label":"tropospheric scatter communication systems","broader":["http://id.loc.gov/authorities/subjects/sh85138080"],"aliases":["Beyond the horizon communication systems","Forward scatter communication systems","Scatter communication systems, Tropospheric","Troposcatter communication systems"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh88000992","provider":"lcsh","revision":"5b51f63fdf44a78e","taxonomy_revision":"f050b5d4780b1289","title":"Tropospheric scatter communication systems","url":"/topics/S88000992","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14142499390656480836","address_version":"morton4x16-v1","coordinates":[0,20,64295,32768],"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}