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_67338 ( "Call sign" text, "Frequency MHz" text, "City of license" text, "ERP W" real, "Class" text, "FCC info" text )

### Question ###
How much is the total ERP W for an 107.9 fm freqeuncy MHz?

### Accurate SQL ###

SELECT COUNT("ERP W") FROM table_67338 WHERE "Frequency MHz" = '107.9 fm'