Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What callsign has 1300 as the frequency?

### Inputs:
table_name: table, columns: ['Frequency', 'Power D/N', 'Callsign', 'Brand', 'City of License']

### Response:
SELECT Callsign FROM table WHERE Frequency = 1300