Write-Read

Learn about the Pulsed Application

Description

Note: This command replaces ConfigEnhancedNB Method.

This subroutine determines, then returns, the proper configuration for pulsed measurements on the PNA-X ONLY using the spectral nulling technique.  The configuration returned needs to be sent to the VNA and any other related external equipment.

The routine will take a desired Pulse Repetition Frequency (PRF) and measurement IFBW and return a possibly modified PRF and IFBW for proper pulsed operation on the VNA.

Note: If an error is returned suggesting that nulling has not been found, add a small offset to the PRF (for example, 2.1 MHz instead of 2 MHz) or set Fixed PRF to False.

 VB Syntax

Pulsed.ConfigEnhancedNB2 (PRF, BW, PhysicalIF, NCO, ClockFreq, Stage1TapArray, Stage2TapArray, Stage3TapArray, FixedPRF, GateDelay, GateWidth, SWGateDelay, SWGateWidth, SWGateRamp)

Variable

(Type) - Description

Pulsed

(interface)  An interface to the agilentpnapulsed.dll application interface.

PRF

(Double)  The Pulse Repetition Frequency.

[out]  The pulse repetition frequency that has been optimized for use with the VNA.  NOTE: This value may be different from the value requested.

[in]  The desired pulse repetition frequency.

BW

(Long)  The VNA IF Bandwidth.

[out]  The VNA IF bandwidth that has been optimized for use with the VNA.  NOTE: This value may be different from the value requested. Zero (0) is returned if no solution is found for the specified PRF and BW.

[in]  The desired VNA IF bandwidth.

PhysicalIF

(Double)

[out]  Returns physical intermediate frequency.

NCO

(Double)

[out]  Returns numeric controlled oscillator frequency.

ClockFreq

(Double)

[out]  Returns the clock frequency (in Hz) of the PNA-X.

Stage1TapArray

(Long array)

[out]  Returns the stage 1 filter coefficients

Stage2TapArray

(Long array)

[out]  Returns the stage 2 filter coefficients

Stage3TapArray

(Long array)

[out]  Returns the stage 3 filter coefficients

FixedPRF

(Boolean)  

[in]

• 1 (True)  Signals the .DLL routine to NOT adjust the PRF value; rather adjust ONLY the IF Bandwidth. This is the default setting.

• 0 (False)  Adjust both the PRF and IF Bandwidth values as necessary.

GateDelay

(Double)

[in]  Highest delay value in seconds used in any of the receiver gates.

GateWidth

(Double)

[in]  Widest pulse width value in seconds used in any of the receiver gates.

SWGateDelay

(Double)

[out]  Returns the SW gate delay in seconds.

SWGateWidth

(Double)

[out]  Returns the SW Gate width in seconds.

SWGateRamp

(Long)

[out]  Returns the SW Gate ramp

Return Type

Not Applicable

Default

Not Applicable

Example

See an example using this command.

C++ Syntax

HRESULT ConfigEnhancedNB2(double *pPRF, long *pBW, double *pIF, double *pNCO, double *clock, double *pStg1, double *pStg2, double *pStg3, VARIANT_BOOL fixPRF, double gateDelay, double gateWidth, double *SWgateDelay, double *SWgateWidth, long *SWgateRamp)

Interface

AgilentPNAPulsed.Application