Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

ESIB
Receiver - Traces
Trace Selection and Setup –TRACE Key Group
The ESIB can display up to four separate traces at the same time. A trace has a maximum of 500 pixels
along the horizontal frequency axis. If there are more measurement values than pixels available, then
several measurement values are assigned to one pixel.
The traces are selected using keys 1 to 4 of the TRACES key group.
The traces can be individually enabled for a measurement and, after the measurement is completed, be
frozen. Traces which are not enabled remain blanked.
A display mode ican be selected for each trace. The traces can be overwritten (CLEAR/WRITE mode)
after each sweep, or the maximum/ minimum over several sweeps can be displayed.
Individual detectors are selectable for the various traces. The peak detector displays the maximum
values represented by a pixel. The quasi peak detector displays the value of the level at a pixel weighted
according to CISPR. The rms detector displays the power (rms value) of the measured values
represented by a pixel, the average detector the linear average value.
The maximum number of measured frequencies which can be measured is limited and depends on the
number of the traces which are switched on.
Number of traces
Measured values /trace
1 250.000
2 150.000
3 100.000
4 80.000
They are stored for postprocessing. If the scan subranges are defined so that more than the possible
values would be measured, a respective message is output upon the scan start. Afterwards the scan is
performed up to the maximum value.
Measurement Function Selection - TRACE 1 to 4 key
The trace functions are categorized as follows:
• type of trace display (CLEAR/WRITE, VIEW and BLANK)
• evaluation of the trace as a whole (MAX HOLD and MIN HOLD)
• detector of a trace (PEAK, QUASI PEAK, RMS, AVERAGE and AC VIDEO
(AC VIDEO with option ESIB-B1 only)
1088.7531.12 4.143 E-15