Rohde & Schwarz CMU-K20, Руководство по эксплуатации

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General Settings CMU-K20/-K21/-K22/-K23/-K24
1115.6088.12 3.6 E-10
user; the results are periodically updated
A third repetition mode is available in remote control:
Counting Repeated single shot measurement with a fixed number of sta-
tistics cycles
The repetition mode is set in the Control tab of the configuration popup-menus
assigned to the three measurement groups Power , Modulation, and Spectrum. In
the Receiver Quality menu, the repetition mode can be set via the Application
softkey .
Note: In contrast to other measurement settings, thee repetition modes in
manual and remote control are independent and do not overwrite
each other. In most measurements, the default repetition mode in
manual control is
Continuous (observe results over an extended pe-
riod of time), the default mode in remote control is Single Shot
(perform one measurement and retrieve results).
Stop Condition For Power, Modulation, and Spectrum measurements, two stop conditions can
be selected:
None The measurement is performed according to its repetition
mode, regardless of the measurement results,
On Limit Failure The measurement is stopped as soon as one of the limits is
exceeded, regardless of the repetition mode set. If no limit
failure occurs, it is performed according to its repetition mode.
For Receiver Quality measurements, the stop condition None (see above) and
two further conditions can be selected:
1
st
Limit exceed. The measurement is stopped as soon as one of the limits is
exceeded
All Limits exceed. The measurement is stopped as soon as all limits defined are
exceeded. Again, if no limit failure occurs, it is performed ac-
cording to its repetition mode.
The Stop Condition is set in the Control tab of the configuration popup-menus
assigned to each measurement group.
Display Mode In graphical measurement diagrams, the Display Mode defines which of the
measured and calculated traces is displayed if the measurement extends over
several bursts. In general, traces are evaluated at a set of fixed, equidistant test
points (samples). After n bursts, n measurement results per test point have been
taken. After a single shot measurement extending over c bursts, c measurement
results per test point have been taken.
Current The current burst, i.e. the last result for all test points, is dis-
played.
Minimum At each test point, the minimum value of all bursts measured is
displayed.
Maximum At each test point, the maximum value of all bursts measured is
displayed.
Max./Min. At each test point, the extreme value of all bursts measured is
displayed, i.e. the maximum or minimum, whichever has a larger
absolute value.
Average At each test point, a suitably defined average over all bursts
measured is displayed; see paragraph on
Calculation of average
quantities below.
Note the difference in the calculation of Average on one hand, Minimum, Maxi-
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