Master Setup (Generate and Fade)

The two tabs shown below access the Master Setup parameters for adding real-time fading to user-created or Signal Studio generated waveforms. Additionally, clicking the Fader block in the block configuration or Fader Path node in the tree view displays the Fader Path parameters for the selected Fader Channel model.

Run-time Adjustment of Fading Parameters

For 1 Channel Generate and Fade or 1 Channel Fade (ext in) configurations:

When Dynamic Fading is not enabled, all Fader parameters (except Random Seed and Dynamic Fading), including the number of paths, are run-time adjustable from the user interface or through SCPI commands while the waveform is playing .

If n is the initial number of enabled paths, you can increase the number of paths to 6 (n ≤ 6), 12 (6 < n ≤ 12), 18 (12 < n ≤ 18) or 24 (18 < n ≤ 24).

Click a tab to display information for the related parameter settings.

Button Functionality:

Restore Default Settings

Applying the Restore Default button in the Fader Setup view restores the default settings for the carrier frequency, random seed and all Fader Paths to their default settings for the selected channel model.

Channel Bandwidth

Displays the channel bandwidth depending on the number of enabled paths.

Configurations with regular channels:

Paths	Standard	R2C License (U01 or later)
0-6	120 MHz	160 MHz
7-12	80 MHz	80 MHz
13-24	40 MHz	40 MHz

Configurations with split channels that require split fading Option N5106A-169 (e.g., 2x8 MIMO and 4x4 MIMO):

Paths	Standard	R2C License (U01 or later)
0-6	60 MHz	80 MHz
7-12	40 MHz	40 MHz
13-24	20 MHz	20 MHz

Configure the fading parameters

You can configure the fading channel parameters in one of several ways:

select a standard model for the fader that automatically populates the path configurations as defined by the respective standard committee.
manually define channel correlation if all paths have the same settings, non-zero Doppler frequency, and use Rayleigh fading (not Jakes).
enter user-defined path data to more closely simulate the real-world environment of your DUT.

Fader Setup	gives information on setting general fading parameters, available standard models and associated profiles.
Correlation	displays the correlation coefficients according to the currently loaded configuration.
Fader Paths	defines the path configuration parameters to simulate the multipath environment.

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