Keysight x-series Instruction Manual

3 Short-Range Comms & IoT Mode
3.2 Modulation Analysis Measurement
Freq Error float64 frequency error in the measured signal ppm XX.XX ppm
I/Q Offset float64 the I and Q error (magnitude squared) offset from
the origin
dB XX.XX dB
Clock Error float64 Symbol clock error ppm XX.XX ppm
Amp Droop float64 the change in the magnitude of the signal over the
entire measurement
dB/symbol XX.XX
dB/sym
Numeric results when modulation format is FSK:
Name Type Description Unit Format
Transmit Power float64 transmit power dBm XX.XX dBm
FSK Error float64 the RMS average of the FSK error at all symbol
locations
percent XX.XX %
Peak FSK Error float64 the largest of the FSK error at all symbol locations percent XX.XX %
Peak FSK Error
Index
Int location of the symbol which has the largest FSK error
in the measurement area
symbol XX sym
Rms Mag Error float64 magnitude error over the entire measurement area percent XX.XX %
Peak Mag Error float64 peak magnitude error in the measurement area percent XX.XX %
Peak Mag Error
Index
Int location of the symbol which has peak magnitude error
in the measurement area
symbol XX sym
Carrier Freq
Offset
float64 carrier frequency error relative to the analyzer's center
frequency
ppm XX.XX ppm
Deviation float64 average deviation of all symbols in the measurement
area
Hz XX.XX Hz
Deviation
Accuracy
float64 deviation accuracy compared to its reference percent XX.XX %
Clock Error float64 Symbol clock error ppm XX.XX ppm
Demod Bits
This table shows the demodulation bits.
Example
:DISP:EVM:WIND2:DATA DEMB
sets the second window data to Demod Bits
Decode
Displays the trace data choices that show decode results.
Short Range Comms & IoT Mode User's &Programmer's Reference 199

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)