CREATE TABLE table_204_270 (id DECIMAL, "transmitter" TEXT, "kw" DECIMAL, "bbca" DECIMAL, "bbcb" DECIMAL, "d3&4" DECIMAL, "sdn" DECIMAL, "arqa" DECIMAL, "arqb" DECIMAL, "pol." TEXT, "a.g." TEXT)

what is the total number of transmitters listed in the table ?
SELECT COUNT("transmitter") FROM table_204_270
SELECT COUNT("transmitter") FROM "table_204_270"