This Visual Basic COM example shows you how to configure the PNA-X internal pulse generators and modulators to make wideband pulsed measurements in pulse profile mode using the PNA-X.
Visit the VNA website where you can download a free Wideband Pulsed Application that performs this measurement on the PNA-X.
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'Create an VNA Application instance Dim pnaApp As New AgilentPNA835x.Application 'Create a PathConfiguration instance Dim pathConf As AgilentPNA835x.PathConfiguration 'Create an PulseGenerator instance Dim pulseGen As AgilentPNA835x.PulseGenerator 'Create a Channel instance Dim myChan As AgilentPNA835x.Channel
'Preset PNA-X pnaApp.Preset 'Assign current active channel to myChan object Set myChan = pnaApp.ActiveChannel 'Let PNA-X work in CW mode because of doing pulse profile measurement myChan.SweepType = naCWTimeSweep 'Set CW Freq to 4 GHz myChan.CWFrequency = 4000000000# 'Set IF Bandwidth to 5 MHz to get the best time resolution myChan.IFBandwidth = 5000000# 'Assign current active channel path configuration to pathConf object Set pathConf = myChan.PathConfiguration 'Let PNA-X source work in ALC Open Loop mode myChan.ALCLevelingMode(1) = naALCOpenLoop 'Make the Pulse1 as modulation pulse to generate Pulsed-RF signal pathConf.Element("PulseModDrive").Value = "Pulse1" 'Enable pulse modulation at Source1Out1 path pathConf.Element("Src1Out1PulseModEnable").Value = "Enable" 'Assign current active channel pulse generator to pulseGen object Set pulseGen = myChan.PulseGenerator 'Internal pulse generator has five channels, 'default the channel 0 use as internal ADC trigger signal 'Enable channel 0 of internal pulse generator as trigger signal pulseGen.State(0) = True 'Enable channel 1 of internal pulse generator as modulation signal pulseGen.State(1) = True 'Set pulse period to 10 us pulseGen.Period = 0.00001 '10 us 'Set pulse width of channel 0 to 1 us pulseGen.Width(0) = 0.000001 ' 1 us 'Set pulse width of channel 1 to 5 us pulseGen.Width(1) = 0.000005 '5 us
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