Reference

Accessing Reference Settings

Using Hardkey/SoftTab/Softkey

Using a mouse

1. Press Setup > Internal Hardware >  Reference...

1. Click Instrument.

2. Select Setup.

3. Select Internal Hardware.

4. Select Reference.

Reference dialog help

Reference In

Internal - Selects the 10 MHz internal frequency reference.

External 10 MHz - Selects an external 10 MHz frequency reference

External 100 MHz - Selects an external 100 MHz frequency reference.

PXI Backplane - Selects an PXI backplane frequency reference. (M980xA, M983xA only)

 Note: Using the signal from PXI Chassis backplane degrades the measurement performance especially absolute measurement. This is due to worse phase noise on the reference signal from backplane.

Reference Out

10 MHz - Selects 10 MHz frequency reference.

100 MHz - Selects 100 MHz frequency reference.

Preference

Ext Reference - Check to modify settings on a preset and recall or uncheck to make the current reference settings permanent. See Ext Device: De-activate on PRESET and recall in preference dialog.