This button connects to the instrument after entering the its Address in the Configuration property grid. It also displays the following status conditions:
Idle: No instrument is connected.
Connecting: The software is in the process of connecting to the instrument.
Connected: The software is connected to the instrument.
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1. Configuration |
2. Basic |
3. I/Q |
4. ALC |
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5. Baseband |
6. Markers |
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Enter the instrument address.
The drop down list of Address lists the recently used instrument address and the connection strings (GPIB, USB, LAN, etc.) configured in the IO Connection Expert.
Default: M9383A
This parameter displays the model number and serial number of the instrument if the status of Instrument Connection Button is Connected.
Choice: On | Off
Default: Off
Double-click or use the drop-down menu to enable or disable the DC calibration after the waveform download.
Range: 1 MHz to 44 GHz (actual value is determined by modules and options)
Default: 1 GHz
Coupling: The value should not be less than the waveform sample rate.
Enter a value to set the RF carrier frequency. Use abbreviations for faster entry (example: 1g = 1.000000000000 GHz).
Range: -90 dBm to 19 dBm (actual value is determined by modules and options)
Default: -10 dBm
Enter a value to set the RF amplitude.
Choice: Off | On
Default: On
Double-click or use the drop-down menu to turn the signal generator’s RF output or .
Choice: Off | On
Default: Off
Double-click or use the drop-down menu to turn the I/Q adjustments or .
– The values entered for I Offset, Q Offset, and so on are applied to the I and Q signals.
– I/Q adjustment values are not applied to the I and Q signals.
Range: -25% to 25%
Default: 0.0%
Coupling: Available when I/Q Adjustments is enabled.
Sets the origin offset for the internally generated in-phase signal.
Set to to enable this parameter.
Range: -25% to 25%
Default: 0.0%
Coupling: Available when I/Q Adjustments is enabled.
Sets the origin offset for standard quadrature-phase signal.
Set to to enable this parameter.
Range:-1 dB to 1 dB in 0.001 dB steps
Default: 0.00 dB
Coupling: Available when I/Q Adjustments is enabled.
Adjusts the ratio of I to Q while preserving the composite vector magnitude.
Example: If you enter a value of 1 dB, the I signal will have 1 dB more amplitude than the Q signal.
Set to to enable this parameter.
Range: -10 to 10 degrees
Default: 0 degrees
Coupling: Available when I/Q Adjustments is enabled.
Adjusts the phase angle between I and Q vectors
Set to to enable this parameter.
Range: -50 sample points/sample rate (s) (for example, at 200 MS/s (160 MHz bandwidth) the limit is -250 ns, and at 80 Ms/s (64 MHz bandwidth) the limit is -625 ns) to 50 sample points/sample rate (s) (for example, at 200 MS/s (160 MHz bandwidth) the limit is 250 ns, and at 80 Ms/s (64 MHz bandwidth) the limit is 625 ns
Default: 0.0 ns
Coupling: Available when I/Q Adjustments is enabled.
Sets the I/Q skew value, which is a time delay between I and Q.
A positive value delays the I signal relative to the Q signal.
A negative value delays the Q signal relative to the I signal.
Range: -250 ns to 250 ns
Default: 0 s
Coupling: Available when I/Q Adjustments is enabled.
Changes the absolute phase of both I and Q with respect to triggers and markers. A positive value delays I and Q.
Choice: Off | On
Default: On
Double-click or use the drop-down menu to enable or disable the automatic level control.
– The ALC circuit constantly monitors and controls the output power level.
– No automatic leveling occurs.
Choice: Auto | Manual
Default: Auto
Coupling: Power searching is enabled only when ALC is set to Off state; Auto means that the Power Search is automatically executed whenever the output frequency or amplitude is changed or when changes are made to the I/Q modulation state; Manual means that power searching needs to be manually executed to determine the open loop ALC level.
Sets the Power Search Mode.
Range: 1 to 100% (100% = no scaling)
Default: 70%
Enter a scaling value for the signal generator to apply to the waveform while it is playing. Use scaling to get the best dynamic range without overflowing the I and Q digital-to-analog converters (DAC) and to reduce the overshoot associated with the DAC interpolation filter. Waveform Runtime Scaling does not change the data in the waveform file.
Range: 1 Hz to n (the value of n depends on the hardware option: (B04) 40MHz, (B10) 100MHz, or (B16) 160MHz)
Default: 5 MHz
Sets the Sample Clock rate.
Choice: Marker1, Marker2, Marker3, Marker4
Default : Marker4
This parameter is read-only and displays the marker used for RF blanking. Pulse/RF Blanking turns off the RF output signal during specific conditions determined by the marker.
RF blanking incorporates ALC hold, so you do not need to select ALC hold when using RF blanking.
Do not blank longer than 100 ms to avoid exceeding the ALC hold limit.
Choice: Marker1, Marker2, Marker3, Marker4
Default : Marker4
This parameter is read-only and selects a marker to enable the automatic leveling control (ALC) hold function, or select None to disable the hold feature.. ALC hold is used when you have a waveform signal that has idle periods, or when the increased dynamic range with RF blanking is not desired.
RF blanking incorporates ALC hold, so there is no need to select ALC hold when using RF blanking.
Limit ALC Hold to no more than 100 ms, as the ALC Level may degrade.
The hold selection remains until you reconfigure it, preset the signal generator, or cycle the signal generator power.
Incorrect ALC settings can cause a sudden unleveled condition to occur. An unleveled RF output can damage a DUT or connected instrument. Ensure that you set markers such that the ALC obtains a sample that accounts for the high power levels within the signal.
Choice: Off | On
Default: Off
Coupling: If chosen, the instrument group contains reference module, this setting becomes visible and can be changed.
Indicates whether to use an External Reference (true) or the Internal Reference (false).
Range: 1000000 Hz to 100000000 Hz
Default: 0 Hz
Coupling: Only enabled when External Reference Enabled is True.
Sets the frequency of the external reference signal.