RFmxInstrMXConstants Class

PXIe-5663/5663E: RFmx locks the PXIe-5663/5663E to an external 10 MHz signal. Connect the external signal to the PXIe-5622 CLK IN connector, and connect the PXIe-5622 CLK OUT connector to the FREQ REF IN connector on the PXIe-5652. PXIe-5665: RFmx locks the PXIe-5665 to an external 100 MHz signal. Connect the external signal to the PXIe-5622 CLK IN connector, and connect the PXIe-5622 CLK OUT connector to the REF IN connector on the PXIe-5653. Set the SetFrequencyReferenceFrequency(string, double) method to 100 MHz.
PXIe-5668: Lock the PXIe-5668 to an external 100 MHz signal. Connect the external signal to the CLK IN connector on the PXIe-5624, and connect the PXIe-5624 CLK OUT connector to the REF IN connector on the PXIe-5653. Set the SetFrequencyReferenceFrequency(string, double) method to 100 MHz.
PXIe-5644/5645/5646, PXIe-5820/5830/5831/5831 with PXIe-5653/5832/5832 with PXIe-5653/5840/5841/5842/5840/5841/5842/5860 with PXIe-5653: This configuration does not apply.

Export the Reference Clock on the CLK OUT terminal on the digitizer. This value is not valid for the PXIe-5644/5645/5646 or PXIe-5820/5830/5831/5832/5840/5841/5842/5860.

Specifies that the signal should not be exported.

Specifies that RFmx automatically configures the signal analyzer to use the LO utilized by the signal generator on the same vector signal transceiver (VST) based on the configured measurements.
When using instruments that do not have LOs with excellent phase noise and to minimize the contribution of the instrument's phase noise affecting your measurements, NI recommends to share the LO between the signal generator (SG) and the signal analyzer (SA). This value is recommended in test setups that use a VST with NI-RFSG to generate a signal at the DUT's input and RFmx to measure the signal at the DUT's output.
This value automatically: determines whether the SG LO can be shared with SA based on the test instrument used, selected measurement, and the measurement settings. configures instrument specific properties on SA to share the LO between the generator and analyzer, whenever possible.
To enable automatically sharing SG LO with SA, you must first setup the required device specific physical connections mentioned below and then follow the steps in the recommended order.
PXIe-5840/5841/5842: SG LO is shared with SA via an external path. Hence, you must connect RF Out LO Out to RF In LO In using a cable.
PXIe-5830/5831/5832: SG LO is shared with SA via an internal path. Hence, an external cable connection is not required.
NI recommends the following order of steps:
Set LO Source property to Automatic SG SA Shared in NI-RFSG (or enable Automatic SG SA shared LO on NI-RFSG Playback Library). Set LO Source property to Automatic_SG_SA_Shared in RFmx. Configure any additional settings on RFSG and RFmx, including selecting waveforms. Initiate RFSG. Initiate RFmx.

Specifies that the LO source used to downconvert the RF input signal is connected to the LO IN connector on the front panel.

Specifies that no LO source is required to downconvert the RF input signal.

Specifies that the onboard synthesizer is used to generate the LO signal that downconverts the RF input signal. PXIe-5831: This configuration uses the onboard LO of the PXIe-3622, using the LO2 stage.
PXIe-5832: This configuration uses the onboard LO of the PXIe-3623, using the LO2 stage.
PXIe-5831 with PXIe-5653: This configuration uses the onboard LO of the PXIe-5653 when associated with the PXIe-3622.
PXIe-5832 with PXIe-5653: This configuration uses the onboard LO of the PXIe-5653 when associated with the PXIe-3623.
PXIe-5840 with PXIe-5653: If the center frequency is greater than or equal to 3.2 GHz, this configuration uses the PXIe-5653 LO source. For frequencies less than 3.2 GHz, this configuration uses the PXIe-5840 internal LO. If RFmx is operating in Spectrum mode, this configuration uses the PXIe-5840 internal LO irrespective of the frequency.

Specifies that the LO source uses the PXIe-5830/5831/5832/5840 internal LO. This value is valid on only the PXIe-5840 with PXIe-5653, PXIe-5831 with PXIe-5653 (LO1 stage only), PXIe-5832 with PXIe-5653 (LO1 stage only).

Specifies that the internal LO can be shared between RFmx and RFSG sessions. RFmx selects an internal synthesizer and the synthesizer signal is switched to both the RX and TX mixers. This value is valid only on the PXIe-5830/5831/5832/5841/5842.

The Reference Clock is not exported. This value is not valid for the PXIe-5644/5645/5646.

PXIe-5663/5663E: RFmx locks the PXIe-5663/5663E to the PXIe-5652 LO source onboard clock. Connect the REF OUT2 connector (if it exists) on the PXIe-5652 to the PXIe-5622 CLK IN terminal. On versions of the PXIe-5663/5663E that lack a REF OUT2 connector on the PXIe-5652, connect the REF IN/OUT connector on the PXIe-5652 to the PXIe-5622 CLK IN terminal.
PXIe-5665: RFmx locks the PXIe-5665 to the PXIe-5653 LO source onboard clock. Connect the 100 MHz REF OUT terminal on the PXIe-5653 to the PXIe-5622 CLK IN terminal.
PXIe-5668: Lock the PXIe-5668 to the PXIe-5653 LO SOURCE onboard clock. Connect the LO2 OUT connector on the PXIe-5606 to the CLK IN connector on the PXIe-5624.
PXIe-5644/5645/5646, PXIe-5820/5840/5841/5842/5860: RFmx locks the device to its onboard clock.
PXIe-5830/5831/5832: For the PXIe-5830, connect the PXIe-5820 REF IN connector to the PXIe-3621 REF OUT connector. For the PXIe-5831, connect the PXIe-5820 REF IN connector to the PXIe-3622 REF OUT connector. For the PXIe-5832, connect the PXIe-5820 REF IN connector to the PXIe-3623 REF OUT connector.
PXIe-5831 with PXIe-5653: Connect the PXIe-5820 REF IN connector to the PXIe-3622 REF OUT connector. Connect the PXIe-5653 REF OUT (10 MHz) connector to the PXIe-3622 REF IN connector.
PXIe-5832 with PXIe-5653: Connect the PXIe-5820 REF IN connector to the PXIe-3623 REF OUT connector. Connect the PXIe-5653 REF OUT (10 MHz) connector to the PXIe-3623 REF IN connector.
PXIe-5840 with PXIe-5653: Lock onto the PXIe-5653 onboard clock. Connect the REF OUT (10 MHz) connector on the PXIe-5653 to the PXIe-5840 REF IN connector. Configure open NI-RFSG sessions to the device to use ReferenceIn for PXIe-5840 or ReferenceIn2 for the PXIe-5840 with the PXIe-5653.
PXIe-5860: Lock to the PXIe-5860 onboard clock.

The signal is exported to the PFI 0.

The signal is exported to the PXI 1.

PXIe-5668: Lock the PXIe-5653 to the PXI backplane clock. Connect the PXIe-5606 LO2 OUT to the LO2 IN connector on the PXIe-5624.
PXIe-5644/5645/5646, PXIe-5663/5663E/5665, and PXIe-5820/5840/5841/5860: The RFmx driver locks the device to the PXI backplane clock.
PXIe-5830/5831/5832 with PXIe-5653/5841 with PXIe-5655, PXIe-5842/5860: The RFmx driver locks the device to the PXI backplane clock. Cables between modules are required as shown in the Getting Started Guide for the instrument.

PXIe-5831 with PXIe-5653: RFmx configures the PXIe-5653 to export the reference clock and configures the PXIe-5820 and PXIe-3622 to use PXI_Clock as the reference clock source. You must connect the PXIe-5653 REF OUT (10 MHz) connector to the PXI chassis REF IN connector.
PXIe-5832 with PXIe-5653: RFmx configures the PXIe-5653 to export the reference clock and configures the PXIe-5820 and PXIe-3623 to use PXI_Clock as the reference clock source. You must connect the PXIe-5653 REF OUT (10 MHz) connector to the PXI chassis REF IN connector.
PXIe-5840 with PXIe-5653: RFmx configures the PXIe-5653 to export the reference clock, and configures the PXIe-5840 to use PXI_Clock. For best performance, configure all other devices in the system to use PXI_Clk as the reference clock source. You must connect the PXIe-5653 REF OUT (10 MHz) connector to the PXIe-5840 REF IN connector for this configuration.
PXIe-5663/5663E/5665/5668, PXIe-5644/5645/5646, PXIe-5820/5830/5831/5832/5840/5841/5842/5860: This configuration does not apply.

The signal is exported to the PXIe DStar B trigger line. This value is valid only for PXIe-5820/5830/5831/5832/5840/5841/5842/5860.

The signal is exported to the PXIe DStar C trigger line. This value is valid only for PXIe-5820/5830/5831/5832/5840/5841/5842/5860.

The signal is exported to the PXI star trigger line.

The signal is exported to the PXI trigger line 0.

The signal is exported to the PXI trigger line 1.

The signal is exported to the PXI trigger line 2.

The signal is exported to the PXI trigger line 3.

The signal is exported to the PXI trigger line 4.

The signal is exported to the PXI trigger line 5.

The signal is exported to the PXI trigger line 6.

The signal is exported to the PXI trigger line 7.

PXIe-5663/5663E: Connect the external signal to the PXIe-5652 REF IN/OUT connector. Connect the REF OUT2 connector (if it exists) on the PXIe-5652 to the PXIe-5622 CLK IN terminal. PXIe-5665: Connect the external signal to the PXIe-5653 REF IN connector. Connect the 100 MHz REF OUT terminal on the PXIe-5653 to the PXIe-5622 CLK IN connector. If your external clock signal frequency is set to a frequency other than 10 MHz, set the SetFrequencyReferenceFrequency(string, double) method according to the frequency of your external clock signal.
PXIe-5668: Connect the external signal to the PXIe-5653 REF IN connector. Connect the LO2 OUT on the PXIe-5606 to the CLK IN connector on the PXIe-5622. If your external clock signal frequency is set to a frequency other than 10 MHz, set the SetFrequencyReferenceFrequency(string, double) method according to the frequency of your external clock signal.
PXIe-5644/5645/5646, PXIe-5820/5840/5841/5842/5860: RFmx locks the device to the signal at the external REF IN connector. PXIe-5830/5831/5832: For PXIe-5830, connect the PXIe-5820 REF IN connector to the PXIe-3621 REF OUT connector. For PXIe-5831, connect the PXIe-5820 REF IN connector to the PXIe-3622 REF OUT connector. For PXIe-5832, connect the PXIe-5820 REF IN connector to the PXIe-3623 REF OUT connector. For PXIe-5830, lock the external signal to the PXIe-3621 REF IN connector. For PXIe-5831, lock the external signal to the PXIe-3622 REF IN connector. For PXIe-5832, lock the external signal to the PXIe-3623 REF IN connector.
PXIe-5831 with PXIe-5653: Connect the PXIe-5820 REF IN connector to the PXIe-3622 REF OUT connector. Connect the PXIe-5653 REF OUT (10 MHz) connector to the PXIe-3622 REF IN connector. Lock the external signal to the PXIe-5653 REF IN connector.
PXIe-5832 with PXIe-5653: Connect the PXIe-5820 REF IN connector to the PXIe-3623 REF OUT connector. Connect the PXIe-5653 REF OUT (10 MHz) connector to the PXIe-3623 REF IN connector. Lock the external signal to the PXIe-5653 REF IN connector.
PXIe-5840 with PXIe-5653: Lock to the signal at the REF IN connector on the associated PXIe-5653. Connect the REF OUT (10 MHz) connector on the PXIe-5653 to the PXIe-5840 REF IN connector.
PXIe-5860:Lock to the signal at the REF IN connector on the PXIe-5860.

PXIe-5840 with PXIe-5653: RFmx locks the reference clock to the clock sourced at the PXIe-5840 REF IN terminal that is previously configured by an NI-RFSG session. Connect the NI-5840 REF OUT connector to the PXIe-5653 REF IN connector.
Configure open NI-RFSG sessions to the device to use ReferenceIn for the PXIe-5840 or OnboardClock for the PXIe-5840 with PXIe-5653.
PXIe-5663/5663E/5665/5668, PXIe-5644/5645/5646, and PXIe-5820/5830/5831/5831 with PXIe-5653/5832/5832 with PXIe-5653/5840/5841/5842/5860: This configuration does not apply.

Export the clock on the REF IN/OUT terminal on the PXIe-5652, the REF OUT terminals on the PXIe-5653, or the REF OUT terminal on the PXIe-5694, PXIe-5644/5645/5646, or PXIe-5820/5830/5831/5832/5840/5841/5842/5860.

Export the clock on the REF OUT2 terminal on the PXIe-5652. This value is valid only for the PXIe-5663E.

The trigger is received from the timer event. This value is valid only for PXIe-5820/5840/5841/5842/5860 and for digital edge advance triggers on PXIe-5663E/5665.