CREATE TABLE "translators" (
  "call_sign" text,
  "frequency_m_hz" real,
  "city_of_license" text,
  "erp_w" real,
  "class" text,
  "fcc_info" text
);

Question: Tell me the sum of frequency for ERP W less than 1
SQL: SELECT SUM("frequency_m_hz") FROM "translators" WHERE "erp_w"<1;