IQ Signal Master™ MX280005A Vector Signal Analysis Software Help : Modulation Analysis : Numeric
 
Numeric
Displays the numeric result of modulation analysis in the trace area. According to the storage mode specified, the results in a single measurement are displayed for Off, the averages of the results in the specified number of measurements for Average, and the averages and the maximums of the results in the specified number of measurements for Average and Max, respectively. The measurements depend on the Modulation Type setting.
If a 4-trace split screen is displayed, Filtered Power, Frequency Error (ppm), Droop Factor, MER (RMS, peak), or Deviation at Ts/2 is not displayed on the screen.
Numeric (Modulation Type is Pi/4DQPSK)
Graph Display Result
Displays the normalized amplitude of the I phase and Q phase for each 1/8th of the symbol in the analysis interval. When modulation is set to 2FSK, 4FSK, or H-CPM, the frequency deviation of each symbol can be displayed with the horizontal axis as normalized frequency. The graph's horizontal axis is displayed in 2-symbol intervals. Right-click the measurement screen to display the menu shown below.
Numeric Display Menu
Copy Image to Clipboard
Copies image to clipboard. Image can be then viewed with a graphics editor.
Save Image to File
Name and save the image to a user selected file.
Export Data to File
Export the data to a user selected file.
Fit All Measurements in Window
Only the current active measurements are fit in the window for full view.
Display Numeric Only
Only Numeric displays in full view.
Select all Available Measurement Views
All measurement views are displayed in the window.
Clear All Selected Measurements Views
Clears out all views.
Numeric Parameters
The Numeric parameters are described below.
Scale – (Power)
Toggles between (dBm) and (W) for the unit of measurement result. Select the Unit menu by pressing (Unit) at Scale menu, select Unit-Power menu by pressing (Power), and select either (dBm) or (W).
Scale – (Symbol Rate)
Sets the unit of numeric results, selecting one from (ppm), (mHz), and (Hz). On the Scale menu (Unit), select the Unit menu, select (Symbol Rate), select the Unit-Symbol Rate menu, and then select (ppm), (mHz), or (Hz).
Measured type display status is listed in Table: Measured Type.
Measured Type
Modulation Parameters
Measured Type
2FSK 4FSK H-CPM
2ASK 4ASK
Other
Tx Power
Yes
Yes
Yes
Filtered Power
Yes
Yes
Yes
Frequency Error
Yes
Yes
Yes
EVM (RMS)
No
Yes
Yes
EVM (peak)
No
Yes
Yes
Phase Error (RMS)
No
No
Yes
Phase Error (peak)
No
No
Yes
Magnitude Error
(RMS)
Yes
Yes
Yes
Magnitude Error (peak)
Yes
Yes
Yes
FSK Error (RMS)
Yes
No
No
FSK Error (peak)
Yes
No
No
Modulation Fidelity (RMS)
Yes
No
No
Modulation Fidelity (peak)
Yes
No
No
Symbol Rate Error
Yes
Yes
Yes
Jitter P-P Min
Yes
No
No
Jitter P-P Max
Yes
No
No
Deviation
Yes
No
No
Deviation RMS (%)
Yes1
No
No
Deviation at Ts/2
Yes2
No
No
BER
Yes3
Yes3
Yes3
Specific Word (Hex)
Yes
Yes
Yes
Origin Offset
No
No
Yes
Droop Factor
No
Yes
Yes
IQ Gain Imbalance
No
No
Yes4
Quadrature Error
No
No
Yes4
MER (RMS)
No
Yes
Yes
MER (peak)
No
Yes
Yes
Offset EVM (RMS)
No
No
Yes5
Offset EVM (peak)
No
No
Yes5
Modulation Index (RMS)
No
Yes6
No
Eye Opening (X-Time)
No
Yes6
No
Eye Opening (Y-Amplitude)
No
Yes6
No
Timing Offset
Yes
Yes
Yes
1. Only O-QPSK
2. Only 2FSK
3. Only 2FSK and 4FSK
4. Only BER = On
5. Only 2ASK and 4ASK
6. Non-BPSK
Tx Power
Displays the average RF level before the signal has passed through the measurement filter.
Filtered Power
Displays the average RF level after the signal has passed through the measurement filter.
Frequency Error
Displays the frequency error.
EVM (RMS)
Displays RMS value of EVM.
EVM (peak)
Displays the EVM Peak value and the number of the symbol for which the peak value was detected.
Phase Error (RMS)
Displays RMS value of Phase Error.
Phase Error (peak)
Displays the Phase Error Peak value and the number of the symbol for which the peak value was detected.
Magnitude Error (RMS)
Displays RMS value of Magnitude Error.
Magnitude Error (peak)
Displays the Magnitude Error Peak value and the number of the symbol for which the peak value was detected.
FSK Error (RMS)
Displays RMS value of FSK Error.
FSK Error (peak)
Displays the FSK Error Peak value and the number of the symbol for which the peak value was detected.
Modulation Fidelity (RMS)
Displays RMS value of Modulation Fidelity.
Modulation Fidelity (peak)
Displays the Modulation Fidelity Peak value and the number of the symbol for which the peak value was detected.
Symbol Rate Error
Displays Symbol Rate Error. Select a measurement mode with Method of Symbol Rate Error.
Jitter P-P Min
Displays the minimum peak-to-peak value for jitter.
Jitter P-P Max
Displays the maximum peak-to-peak value for jitter.
Deviation
Displays the average value, peak value, and peak-to-peak value of the frequency deviation.
Deviation RMS (%)
Displays RMS value of Deviation in %.
Deviation at Ts/2
Displays the average value, the maximum + frequency peak value, the minimum + frequency peak value, the maximum – frequency peak value, the minimum – frequency peak value, and peak-to-peak value of the frequency deviation.
BER
Displays the Bit Error Rate.
Specific Word
Displays an extracted part of specific bits.
Origin Offset
Displays origin offset value.
Droop Factor
Displays droop factor.
IQ Gain Imbalance
Displays the amplitude difference between the I phase and the Q phase.
Quadrature Error
Displays how perpendicular the I phase is to the Q phase.
MER (RMS)
Displays RMS value of MER.
MER (peak)
Displays the MER peak value and the number of the symbol for which the peak value was detected.
Offset EVM (RMS)
Displays RMS value of Offset EVM.
Offset EVM (peak)
Displays the Offset EVM peak value and the number of the symbol for which the peak value was detected.
Modulation Index (RMS)
Displays the Modulation Index in ratio (no unit).
Eye Opening (X-Time)
Displays the Eye Opening (X-Time) in %.
Eye Opening (Y-Amplitude)
Displays the Eye Opening (Y-Amplitude) in %.
Timing Offset
Displays the time difference between external trigger and Symbol (0), in units of μs.
Timing Offset Measurement Mode