Once configured, an external source appears in VNA dialogs as though it were an internal source. This capability requires FOM Option S93080A.
In this topic:
How to Configure an External Source
VNA Applications have additional methods of launching this dialog. |
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Using Hardkey/SoftTab/Softkey |
Using a mouse |
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This dialog box is used to make external source settings.
Source SettingsTimeout (sec) Sets the VISA timeout and will stop processing additional SCPI commands on the first error and will put the measurement into hold. Dwell per point (ms) Applies a dwell in Hardware List triggering ONLY. Set the time (in milliseconds) the external source will wait before data acquisition. Enable Modulation Control - Enables modulation of an external modulation source to be controlled from a source dialog. Check Lock of Reference Clock IN - (SA and Modulation Distortion source drivers) Checks for the VNA's reference clock at the external source. The reference clock is checked at external source driver startup. If the clock is not available, an error message is displayed. If a dual hardware source is used (for example, M8190+PSG), the reference clock inputs of both sources are tested. In the case of the USB chassis (P9336A), the reference clock is tested at the rear 10 MHz chassis input if the P9336A 10 MHz chassis reference is selected. Edit Commands Provides a method to send SCPI commands to AGGeneric (not listed) sources. Trigger Settings and Physical Connection diagramsNote: The VNA controls ALL external source trigger settings automatically (except for those on this dialog). All settings in the External Trigger dialog are ignored. Trigger Mode Software CW (GPIB) Slowest method.
Hardware List (BNC) Fastest method.
Trigger Port Used ONLY for Hardware List Trigger Mode. Select the VNA rear panel connector to be used for triggering. The sources must be connected as follows:
The following diagram shows the connections between the PNA (AUX TRIG 1 or 2 can be used) and N519xA UXG signal generator.
Notes
External Source Dialog box for MP9336+M9810A
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Enter the SCPI commands that control the following functions on your AGGeneric (not listed) source. A field without a SCPI command entered will be ignored and that function will not be set. To launch this dialog, click Edit Commands on the External Source Properties dialog. Operation Complete (*OPC) . Preset Presets the source Set CW Frequency Sets CW Frequency Set CW Sweep Mode Sets source sweep mode Set Power Sets source power Set Power State Turns power ON or OFF |