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_1601792_4 ( television_station VARCHAR, transmitted VARCHAR, frequency VARCHAR )

### Question ###
What is the station that is transmitted at 20 kw and has a frequency of 48 uhf?

### Accurate SQL ###

SELECT television_station FROM table_1601792_4 WHERE transmitted = "20 kW" AND frequency = "48 UHF"