Tektronix RSA6100A Series, Help Manual

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Controlling the Acquisition of Data > Using Triggers to
Capture Just What You Want > Triggering Triggering
For further information on setting the frequency mask parameters, see Event Tab (Triggering) (see
page 323) and Mask Editor (see page 319) . If Option 200 is installed, the frequency mask trigger includes
the ability to change the resolution bandwidth of the frequency transform used to compare to the trigger
mask. The standard FMT uses a
fi xed length FFT for frequency transforms.
Using DPX Density Triggering
To trigger acquisitions based on the density of the DPX Bitmap trace:
1. Click the Triggered option button.
2. Select RF Input from the Source drop-down list.
3. Select DPX Density from the Type drop-down list.
4. Set the DPX Density parameters as appropriate. You can do this two ways:
Entering values for Threshold, Frequency, and Amplitude using the front-panel controls.
Select Trigger On This from the Touchscreen Actions menu (right-click in the graph or press
and hold on the display for two seconds). Move and size the measurement box that appears to
set the values for Frequency and Amplitude.
NOTE.
If the Amplitude units (Tools > Analysis > Units) is set to Watts or Volts, you cannot move the
measurement box using a mouse or the touchscreen. Set the amplitude units to any unit other than
Watts or Volts to move or resize the measurement box.
For further information on setting the power level parameters, see Event Tab (Triggering) (see page 323) .
Using Runt Trigger
To trigger acquisition based on a runt signal:
1. Click the Triggered option button.
2. Select RF Input from the Source drop-down list.
3. Select Runt from the Type drop-down list.
4. For further information on setting the power level parameters, see Event Tab (Triggering) (see
page 323) .
RSA6100A Series Real-Time Spectrum Analyzers Help
319