CREATE TABLE table_47009 ("Call sign" TEXT, "Frequency MHz" FLOAT, "City of license" TEXT, "ERP W" TEXT, "FCC info" TEXT)

Total frequency with ERP W of 62?
SELECT COUNT("Frequency MHz") FROM table_47009 WHERE "ERP W" = '62'
SELECT COUNT("Frequency MHz") FROM "table_47009" WHERE "ERP W" = '62'