3. Auxiliary (M8190A)

Trigger Source

Double-click or use the drop-down menu to select the M8190A trigger source.

• Internal - Use the internal trigger source. Be sure to set the trigger frequency.

• External - Use the trigger provided to the TRIGGER IN input on the M8190A front panel. Be sure to set the trigger threshold, polarity and impedance.

Trigger Frequency

Range: 0.1 Hz to 30 MHz

Set the internal trigger frequency. Use abbreviations for faster entry (example: 1m = 1.000000 MHz).

Trigger Threshold

Range: -5.0 V to 5.0 V

Set the external trigger threshold. Use abbreviations for faster entry (example: 50m = 50 mV).

Trigger Polarity

Double-click or use the drop-down menu to select the M8190A trigger polarity.

• Positive - Trigger on the positive going edges of the signal.

• Negative - Trigger on the negative going edges of the signal.

• Either - Trigger on the positive or the negative going edges of the signal.

Trigger Impedance

Double-click or use the drop-down menu to select the M8190A trigger impedance.

• Low-50 Ohm - Set the trigger input impedance to 50 Ohms.

• High-1K Ohm - Set the trigger input impedance to 1000 Ohms.

Event Source

Double-click or use the drop-down menu to select the M8190A event source.

• External - Use the trigger provided to the EVENT IN connector on the M8190A front panel. Be sure to set the event threshold, polarity and impedance.

• Trigger - Use the specified trigger signal for the event.

Event Threshold

Range: -5.0 V to 5.0 V

Set the external event threshold. Use abbreviations for faster entry (example: 50m = 50 mV).

Event Polarity

Double-click or use the drop-down menu to select the M8190A event polarity.

• Positive - Trigger on the positive going edges of the signal.

• Negative - Trigger on the negative going edges of the signal.

• Either - Trigger on the positive or the negative going edges of the signal.

Event Impedance

Double-click or use the drop-down menu to select the M8190A event impedance.

• Low-50 Ohm - Set the event input impedance to 50 Ohms.

• High-1K Ohm - Set the event input impedance to 1000 Ohms.

Channel 1/2

Accesses the properties for this channel. The properties for channel 1 and channel 2 are identical.

Sync Marker Amplitude

Range: 0.0 V to 1.5 V

Set the sync marker output amplitude. Use abbreviations for faster entry (example: 50m = 50 mV).

Sync Marker Offset

Range: -250 mV to 1.5 V

Set the sync marker amplitude offset. Use abbreviations for faster entry (example: 50m = 50 mV).

Sample Marker Amplitude

Range: 0.0 V to 1.5 V

Set the sample marker output amplitude. Use abbreviations for faster entry (example: 50m = 50 mV).

Sample Marker Offset

Range: -250 mV to 1.5 V

Set the sampler marker amplitude offset. Use abbreviations for faster entry (example: 50m = 50 mV).