LOFrequencyStepSize

Syntax

Namespace: NationalInstruments.ModularInstruments.NIRfsa

public double LOFrequencyStepSize { get; set; }

Remarks

Specifies a Double representing the step size for tuning the local oscillator (LO) phase-locked loop (PLL).

The LO frequency can only be tuned by multiples of the LOFrequencyStepSize property. The LO frequency can therefore be offset from the requested center frequency by as much as half of the LOFrequencyStepSize property. This offset is corrected by digitally frequency shifting the LOFrequency property to the value requested in either the CarrierFrequency property or the CenterFrequency property.

When theLOPllFractionalModeEnabled property is set to Enabled, the LOFrequencyStepSize property can accept any value from 50 kHz to 24 MHz.

When theLOPllFractionalModeEnabled property is set to Disabled, the LOFrequencyStepSize property is coerced to 4 MHz, 5 MHz, 6 MHz, 12 MHz or 24 MHz.

Exceptions