A panel opens.

• Instruments—Select the VSTs that will play back.
• Multi Chassis—Enable when the VSTs are installed in more than one chassis.

Comp Type—Select the type of RF compensation to use:

• None—No RF compensation is used.
• Coherent—RF compensation parameters adjust the sample clock delay, sub-sample clock delay, and phase offsets of each instrument relative to the reference instrument.
• Aligned—RF compensation parameters adjust all coherent parameters, as well as the equalization filters and gain offsets of each instrument relative to the reference instrument.

• LO Source—Select a LO sharing method to control how the local oscillators are shared between instruments:
  • Onboard—Each instrument uses its internal LO source.
  • SG SA Shared—Each instrument uses an external LO source.
  This field is only configurable when Comp Type is None.
• Ref Clk Topo—Select the reference clock topology. Possible reference clock topology values are as follows:
  • Independent—The reference clock is not shared between instruments.
  • Daisy Chain—The reference clock is shared between instruments. The daisy chain order is expected to be the same as the order instruments are listed under Instruments.
  This field is only configurable when Comp Type is None. You can also set reference clock topology parameters for coherent or aligned compensation type through the Settings Manager in step 8.
• Bandwidth—Set the instantaneous RF bandwidth of the instruments. All instruments will be configured with the same bandwidth. This field is only configurable when Comp Type is None.

Click the Select Compensation Vector button. The RF System Compensation window opens.

Set the parameters in the RF System Compensation window.

• List of Compensation Vectors—Click to select the compensation vectors available for use in your system.
• Type—Lists the compensation type of this vector. RF compensation types are None, Coherent, and Aligned.
• Bandwidth—Lists the instantaneous RF bandwidth of the instruments, in Hz.
• Center Frequency—Lists the expected carrier frequency of the incoming signal, in Hz.
• Power Level—Lists the power level for each instrument, in dBm.
• Refresh—Click to refresh the list of compensation vectors.
• Apply—Click to apply the settings of the chosen compensation vector to the RF Playback Software panel.

Close the window.

• Instrument—Specify the instrument to configure from the dropdown.
• Same Config For All Instrs—Enable to use the same settings for all selected instruments.
• Pre-Filter Gain—Set the pre-filter gain for this instrument. This gain is applied to the waveform data before any other signal processing.
• Center Freq—Specify the expected carrier frequency of the incoming signal, in Hz. This field is only configurable when Comp Type is None. Select center frequency parameters for coherent or aligned compensation type through the Compensation Vector in step 6.
• Power Level—Set the power level for each instrument. This field is only configurable when Comp Type is None. Select the power level for coherent or aligned compensation type through the Compensation Vector in step 6.

Set the parameters in the Settings Manager window to configure the recordings to be played back for each instrument and the stream length that is applied across all streams.

• Length Mode—Specify how to stream length is determined:
  • Specify—Sets the stream length to the value specified by the Length and Units fields. Pads any streams shorter than the specified length with zeros.
  • Auto-Truncate—Automatically sets the stream length to the size of the shortest selected recording.
  • Auto-Zero—Automatically sets the stream length to the size of the longest selected recording. Adds zero-padding to the end of all streams from shorter recordings.
• Length—Specify the duration of the stream. This field is only required when Length Mode is Specify.
• Units—Specify the unit of the stream length as Sample, Second, or Byte. This field is only required when Length Mode is Specify.
• Recording Name—For each instrument, specify the name of the recording to be played back by clicking the Recording Name field, then clicking a recording name in the Available Recordings list.

Close the window.