CREATE TABLE table_28630 ("Channel" FLOAT, "Channel name" CLOB, "Callsign" CLOB, "Signal power" CLOB, "Broadcast area" CLOB)

What is the broadcast are for channel 1?
SELECT "Broadcast area" FROM table_28630 WHERE "Channel" = '1'
SELECT "Broadcast area" FROM "table_28630" WHERE "Channel" = '1'