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Waveform Setup for XM Satellite Radio

Select XM Satellite Radio in the Format, shown as follows.

Clicking Waveform Setup in the tree view displays the panes in the parameter view where you can configure a XM Satellite Radio waveform and download it to the ESG or EXG/MXG Vector Signal Generator. This software will do real-time coupling and clipping on the XM Satellite Radio waveform parameters that you input and display the coupled and clipped values immediately.

The parameters configuration for XM Satellite Radio waveforms can be divided into four levels, and each level has its specific parameter set as listed below in detail.

Waveform Setup – Waveforms can consist of up to six carriers in a single waveform, namely:

In the waveform setup window, you can turn On/Off carriers that you require. Set the waveform properties, such as Oversampling Ratio, which allows you to quickly assess your setup.

1. Basic

Waveform Name

The maximum name length is 22 characters for non-Windows based instruments (such as E4438C, N5182A and etc), and 150 characters for Windows based instruments. The name can include spaces and the following special characters: _ $ & # + - [ ]. The default name is XMSatellite.

The name you define here is displayed on the signal generator when you download the waveform.

Comments

Enter an alpha-numeric comment of up to 32 characters. You can enter a separate comment for each waveform.

Waveform Length

View the generated waveform length (number of points). You cannot edit this cell.

This is calculated based on the baseband file you use.

2. Spectrum Control

Mirror Spectrum

Choice: On | Off

Default: Off

Double-click or use the drop-down menu to swap I and Q waveforms. This parameter is used during the correction operation to account for low side up conversion between the signal generator and the spectrum analyzer.

3. Impairments in Waveform

Quadrature Angle Adjustment

Range: -90.000 to 90.000 degrees

Default: 0.000 deg

Set the baseband quadrature phase angle in degrees.

I/Q Gain Balance

Range: -10.000 to 10.000 dB

Default: 0.000 dB

Set the baseband quadrature gain balance, in dB.

4. Baseband File

Baseband File Type

Choices: Demo File | PN9 | Keysight Baseband File

Select Demo File, PN9 or Keysight Baseband File to use the input of physical layer.

User File

The name of the baseband file. Click the right button to select and open a tdm_k or tdmh_k file.

tdm_k file is for non-overlay setting and tdmh_k file can work for both overlay and non-overlay case. Contact Keysight or SiriusXM for more information.

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