private void ConfigureSG()
{
transceiver.RfsgHandle.RF.PowerLevel = sgPowerLevel;
// set IQ rate of the generator
transceiver.RfsgHandle.Arb.IQRate = 1 / waveform.PrecisionTiming.SampleInterval.TotalSeconds;
{ // automatically offset the LO outside of the band
// the Upconverter.CenterFrequency property will remain constant for each step in the configuration list
double maxBandwidth = bandwidths.Max();
if (txStartFrequency > rxStopFrequency)
{
transceiver.RfsgHandle.RF.Upconverter.CenterFrequency = txStopFrequency + maxBandwidth; // inject to the right if the rx band is below the tx band
}
else if (rxStartFrequency > txStopFrequency)
{
transceiver.RfsgHandle.RF.Upconverter.CenterFrequency = txStartFrequency - maxBandwidth; // inject to the left if the rx band is above the tx band
}
else // if none of the above then there is some band overlap
{ // find the side that is easier to inject on
double upperMargin = Math.Abs(rxStopFrequency - txStopFrequency);
double lowerMargin = Math.Abs(rxStartFrequency - txStartFrequency);
if (lowerMargin < upperMargin)
{
transceiver.RfsgHandle.RF.Upconverter.CenterFrequency = txStartFrequency - lowerMargin - maxBandwidth;
}
else // prefer high side injection if the upper and lower margins are equal
{
transceiver.RfsgHandle.RF.Upconverter.CenterFrequency = txStopFrequency + upperMargin + maxBandwidth;
}
} // the driver will throw an error if it is unable to satify the calculated downconverter center frequency
}
#if ni5644R
{ // comment out if using 5646R
transceiver.RfsgHandle.RF.Upconverter.CenterFrequency = (txStartFrequency + txStopFrequency) / 2;
}
#endif
{ // set configuration list to loop through the carrier frequencies
// transceiver.RfsgHandle.BasicConfigurationList.CheckIfConfigurationListExists(Band); // possible speed improvement can be made here.
RfsgConfigurationListProperties[] configurationListProperties = new RfsgConfigurationListProperties[] { RfsgConfigurationListProperties.Frequency };
transceiver.RfsgHandle.BasicConfigurationList.CreateConfigurationList(band, configurationListProperties, true);
if (soakTime > 0)
{
transceiver.RfsgHandle.BasicConfigurationList.CreateStep(true);
transceiver.RfsgHandle.RF.Frequency = soakFrequency;
}
foreach (double frequency in txFrequencyRamp)
{ // create steps for sweep
transceiver.RfsgHandle.BasicConfigurationList.CreateStep(true);
transceiver.RfsgHandle.RF.Frequency = frequency;
}
}
transceiver.ConditionalWriteWaveform(waveformName, waveform);
transceiver.RfsgHandle.Arb.Scripting.WriteScript(BuildScript());
transceiver.RfsgHandle.Arb.Scripting.SelectedScriptName = band;
transceiver.RfsgHandle.DeviceEvents.MarkerEvents[1].ExportedOutputTerminal = referenceTriggerLine;
transceiver.RfsgHandle.Utility.Commit();
}
public void ApplyPowerLevel()
{
transceiver.RfsgHandle.RF.PowerLevel = powerLevel;
if (isConfigFirstTime)
{
transceiver.ConditionalWriteWaveform(waveformName, waveform);
transceiver.RfsgHandle.RF.Frequency = centerFrequency;
transceiver.RfsgHandle.Arb.IQRate = IqRate;
transceiver.RfsgHandle.Initiate();
isConfigFirstTime = false;
}
}