R&S 1129.7246.03, Operating Manual

Page: 105 / 855

R&S ESU Instrument Functions
Receiver Mode
4.74 Operating Manual 1302.6163.12 - 03
FINAL
CISPR RMS
The FINAL CISPR RMS softkey selects the weighting rms detector according to
CISPR 16-1-1 for the final measurement.
Remote command:
:DET:FME CRMS
PEAK LIST
ON | OFF The PEAK LIST ON / OFF softkey switches on and off the indication of the peak list
or of the final measurement results. The single value is indicated as + or x. The
assignment of symbol to trace is fixed.
RUN SCAN automatically switches PEAK LIST to OFF in order to prevent the indi-
cation of preceding final measurement results. PEAK SEARCH automatically sets
PEAK LIST to ON (see “Data Reduction and Peak List” on page 4.33 ).
Remote command:
DISP:TRAC:SYMB CROS | OFF
MIN HOLD The MIN HOLD softkey activates the min peak detector. R&S ESU saves for each
scan the smallest of the previously stored/currently measured values in the trace
memory.
This function is useful e.g. for making an unmodulated carrier in a composite signal
visible. Noise, interference signals or modulated signals are suppressed by the min
hold function whereas a CW signal is recognized by its constant level.
Pressing the MIN HOLD softkey again clears the trace memory and restarts the min
hold function.
Remote command:
DISP:WIND:TRAC:MODE MINH
ASCII FILE
EXPORT The ASCII FILE EXPORT softkey stores the active trace in ASCII format, e.g. on a
memory stick.
Remote command:
FORM ASC;
MMEM:STOR:TRAC 1,'TRACE.DAT'
The file consists of the header containing important scaling parameters, several data
sections containing the scan settings and a data section containing the trace data.
The data of the file header consist of three columns, each separated by a semicolon:
parameter name; numeric value; base unit
The data section for the scan ranges starts with the keyword "Scan <n>:", (<n> =
number of scan range), followed by the scan data in one or several columns which
are also separated by a semicolon.
The data section for the trace date starts with the keyword " Trace <n> " (<n> = num-
ber of stored trace), followed by the measured data in one or several columns which
are also separated by a semicolon.
This format can be read in from spreadsheet calculation programs, e.g. MS Excel. It
is necessary to define ';' as a separator.
Different language versions of evaluation programs may require a different han-
dling of the decimal point. It is therefore possible to select between separators '.'
(decimal point) and ',' (comma) using softkey
DECIM SEP .