 how many height m ( ft ) with frequency mhz being 100.1
CREATE TABLE "translators" (
  "call_sign" text,
  "frequency_m_hz" text,
  "city_of_license" text,
  "erp_w" real,
  "height_m_ft" text,
  "fcc_info" text,
  "notes" text
);
SELECT COUNT("height_m_ft") FROM "translators" WHERE "frequency_m_hz"='100.1';