LO:LO Frequency (Hz) Property

LO:LO Frequency (Hz) Property

Short Name: LO Frequency (Hz)

Property of RFmxInstr

Specifies the LO signal frequency for the configured center frequency. This value is expressed in Hz.

If you are using the vector signal analyzer with an external LO, use this property to specify the LO frequency that the external LO source passes into the LO IN or LO1 IN connector on the RF downconverter front panel. If you are using an external LO, reading the value of this property after configuring the rest of the parameters returns the LO frequency needed by the device.

You can set this property to the actual LO frequency because RFmx corrects for any difference between expected and actual LO frequencies.

For PXIe-5830/5831/5832, if you want to configure or read on LO1 or LO2 channel, use "lo1" or "lo2" as part of the selector string. You do not need to use a selector string or use "lo1, lo2" as part of the selector string if you want to configure this property for both channels. You can also use RFmxInstr Build LO String utility function to create the LO String. For all other devices, lo channel string is not allowed.

Note  This property is not supported on a MIMO session.

You do not need to use a selector string if you want to configure this property for all signal instances. Specify the signal name in the selector string if you want to configure or read on that signal instance. Refer to the Selector Strings topic for information about the string syntax.

The default value is 0.

Supported Devices: PXIe-5644/5645/5646, PXIe-5663/5663E/5665/5668, PXIe-5830/5831/5832/5840/5841/5842

Remarks

The following table lists the characteristics of this property.

Datatype
Permissions	Read/Write
High-level VIs	N/A
Resettable	Yes