7 Reducing the raw data file sizes during CW recording

The data files will normally become very large. The Stored sampled data for WBTs running CW options can be used to reduce the amount of recorded data when you are using a Wide Band Transceiver (WBT) with CW pulses.

Context

If you wish to record large amounts of data, make sure that you have enough space on your hard disk. Unless your computer is equipped with a very large disk, we recommend that you save the data to an external storage device.

Tip

Set up the recording parameters before you start the recording.

If the current file size gets too big during recording, select Split File on the Record RAW button. This will close the current file, and then automatically continue recording to a new file. Record RAW is located on the Operation menu.

Procedure

Open the Operation menu.

Select Output.

Observe that the Output dialog box opens. This dialog box contains a number of pages selected from the menu on the left side.

In the Output dialog box, select File Setup.

On the File Setup page, define the recording parameters.

Select Complex samples to use the default data format.

This is the data format that was first introduced with the EK80 system. The format stores the maximum amount of information, but requires a larger data storage capacity.

or:

Select Power/Angle to reduce the file sizes.

This will store the data using the Wide Band Transceiver (WBT) sample rate, but on the format used by the General Purpose Transceiver (GPT).

or:

Select Reduced sampling rate Power/Angle samples to minimize the file sizes.

Note

Unless you choose Complex samples your RAW data files will contain less information.

At the bottom of the Output dialog box, select OK to save the chosen parameters and close it.