Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

ESIB
Analyzer - Main Markers
MARKER
ZOOM
The MARKER ZOOM softkey expands the area around the active marker.
With the zoom function, more details of the spectrum can be seen. The
desired display range can be defined in an entry window.
The sweep is stopped at the reference marker. The frequency of the signal is
counted and the measured frequency becomes the new center frequency.
The zoomed display is set and the new settings are used by the ESIB for
further measurements.
As long as the switchover to the new frequency display range has not yet
taken place, pressing the softkey will abort the procedure.
If no marker is activated when the softkey is pressed, then MARKER 1 is
automatically activated and set to the highest peak in the measurement
window.
If an instrument setting is changed after selection of MARKER ZOOM, the
function is aborted.
The MARKER ZOOM softkey is only available for frequency domain
measurements (span > 0).
IEC/IEEE-bus command
:CALCulate:MARKer:FUNCtion:ZOOM 1KHZ
MARKER
INFO
The MARKER INFO softkey opens the display of several markers within the
grid. In the upper right corner of the grid, a maximum of 4 markers/delta
markers with the marker symbols ∆/∇, marker number (1 to 4), position and
measurement value are listed. For the output of the marker position, the
number or displayed characters will be limited as required.
If the number of lines available is not enough for all the enabled markers and
delta markers, first the markers and then the delta markers are entered into
the info list
In the SPLIT SCREEN display, the info list is partitioned into 2 partial lists and
assigned to the corresponding measurement window (SCREEN A and
SCREEN B). The info list for SCREEN A contains the markers which are
assigned to trace 1 or trace 3. The info list for SCREEN B contains the
markers which are assigned to trace 2 and trace 4.
For the two measurement windows, it is not possible to turn the MARKER
INFO function selectively on/off .
IEC/IEEE-bus command :DISPlay:WINDow:MINFo ON | OFF
LF Demodulation
The ESIB provides demodulators for AM and FM signals. With these demodulators, a displayed signal
can be identified acoustically with of the internal loudspeaker or with external headphones. The
frequency at which demodulation is activated is coupled to the markers. The sweep stops at the
frequency determined by the set marker for the selected time and the RF signal is demodulated.
During time domain measurements (span = 0) the demodulation is switched on continuously.
1088.7531.12 4.179 E-15