When 1180 am is the frequency how many call signs are there?
CREATE TABLE table_1949746_1 (call_sign VARCHAR, frequency VARCHAR)
SELECT COUNT(call_sign) FROM table_1949746_1 WHERE frequency = "1180 AM"
### Context: CREATE TABLE table_1949746_1 (call_sign VARCHAR, frequency VARCHAR) ### Question: When 1180 am is the frequency how many call signs are there? ### Answer: SELECT COUNT(call_sign) FROM table_1949746_1 WHERE frequency = "1180 AM"