Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_18475946_2 ( erp__kw_ VARCHAR )

### Question ###
What are the 2fm's for erp 16?

### Accurate SQL ###

SELECT 2 AS fm__mhz_ FROM table_18475946_2 WHERE erp__kw_ = "16"