Real Time

Example Video Monitoring

This example shows you how to configure the equipment and Signal Studio software to monitor a ISDB-T format video. A similar procedure can also be used for other formats.

Step 1: Setup the equipment

Step 2: Select the ISDB-T standard

Step 3: Configure the ISDB-T waveform parameters

Step 4: Import the transport stream file

Step 5: Configure the signal generator settings

Step 6: Generate and download the waveform to the signal generator

Step 1: Set up the equipment as shown below.

Step 2: Select the ISDB-T standard

Click ISDB-T from the Format menu.

Step 3: Configure the ISDB-T waveform parameters

  1. In the Waveform Setup (ISDB-T) pane: click Carriern

  2. Edit the parameters to set up a waveform with the following characteristics:

Step 4: Import the transport stream file

  1. In the Waveform Setup (ISDB-T) Carrier pane: click Data Source Type, then in the right cell, click to choose TS File Wizard 

  2. Click File Wizard, and then in the right cell, click to open the TS File Input Wizard.

    The TS File Wizard is used to customize a user required TS file.

  3. TS File Input Wizard Configuration

    Step 1: Select using a file or combination of several files. Typically choose the Using a Single File option. Choose Make a Combination of Several Files when the File length doesn't meet the testing requirements. 

    Step 2: (single file): Select the source file.

    Step 2: (multi file): Select the source file.

    Step 3: Allocate the packet identifiers (PIDs) to each layer. In this step, different PIDs will be assigned to layer A, layer B or layer C.

    This PIDs allocation is for ISDB-T only, for the usage of TS wizard in other formats, this step can be skipped.

    Step 4: Auto-Stuffing

    Step 5: Truncate.

    Step 6: Loop Play treatment

    Step 7: Wait to over.

  4. Click Finish to complete the TS File Input Wizard.

Step 5: Configure the signal generator settings

Click the Instrument node in the tree view, set the MXG/EXG/ESG/PSG’s frequency and amplitude to the values below

Step 6: Generate and download the waveform to the signal generator

  1. Click Generate a waveform button in the tool bar. The software generates an I/Q waveform file in accordance with the current waveform configuration and signal generation setup. Waveform generation time varies proportionally to the complexity of the waveform.

  2. After the waveform is generated, you can examine its characteristics.

    1. View the CCDF plot for the carrier based on the configuration by clicking the carrier in the tree view. For more information, refer to CCDF Plot.

    2. By clicking Waveform Setup in the tree view, you can view plots of the baseband spectrum, I and Q signals, and CCDF curve prior to downloading the file to the signal generator. For more information, refer to CCDF plot and waveform plot.

  3. To download the waveform file to the signal generator, click Download in the tool bar if you have configured the instrument connection. The signal generator automatically begins to play the digital video waveform. The waveform file, however, cannot be modified after downloading it to the signal generator.