### Preparing TrustedQSL Files (Signing)

Once you've defined a station location you are ready to sign QSO records for that location.

N.B. All of the records in the ADIF or Cabrillo file you wish to sign must be for QSOs from the same station location using the same call sign. If the file contains records from multiple locations or made using multiple call signs, use your logging software (or text editor) to change the file or create a new one that contains records from only one station location and call sign.

Use the File menu's Sign existing ADIF or Cabrillo file command to convert an existing ADIF or Cabrillo QSO data file to a TrustedQSL file. The first step is to select the station location that matches the contents of the QSO data file:

TQSL will then prompt you to identify the names of the input and output files. Once you have done that, you'll be asked to confirm the signing operation:

If you have elected to be prompted for the QSO date range, that will happen before the first QSO record is processed. See Setting a Signing Date Range for details.

After the operation is complete, TQSL will display the result: