Chapter
4
Native Device Message Details
4-340
TRAC:SEM?
Query Trace Data Spectrum Emission Mask
Function
This function reads the trace data for Spectrum Emission Mask
measurement.
Query
TRAC:SEM? trace
Response
data_1,data_2,...
Parameter
trace
Trace to save
REF
Reference trace
LOW1
Offset1 Lower side trace
LOW2
Offset2 Lower side trace
LOW3
Offset3 Lower side trace
LOW4
Offset4 Lower side trace
LOW5
Offset5 Lower side trace
LOW6
Offset6 Lower side trace
UPP1
Offset1 Upper side trace
UPP2
Offset2 Upper side trace
UPP3
Offset3 Upper side trace
UPP4
Offset4 Upper side trace
UPP5
Offset5 Upper side trace
UPP6
Offset6 Upper side trace
data_n
Level data
Resolution Integer value for 0.001 dB units
Details
This function reads the Positive trace data when the Detection mode is
Positive & Negative (Normal mode). When Spectrum Emission Mask
measurement is Off, –999.0 is returned as the trace point minutes and
seconds.
Example of Use
To read Reference data.
TRAC:SEM? REF
> -20.000,-20.231,-21.233,...