LTE SRS Measurement
R&S
®
CMW-KM5xx/-KS5xx
829
User Manual 1173.9628.02 ─ 16
In high dynamic mode the dynamic range is increased by measuring the results in two
shots. One shot uses the configured settings to measure the ON power. The other shot
uses a lower "Expected Nominal Power" value to measure the OFF power results.
Disable the high dynamic mode to optimize the measurement speed, e.g. when you
measure low ON powers using a low "Expected Nominal Power" setting, so that the
normal dynamic range is sufficient.
While the combined signal path scenario is active, this parameter is not configurable.
Remote command:
5.3.2.3
Trigger Settings
The "Trigger" parameters configure the trigger system for the LTE SRS measurement.
Fig. 5-8: Trigger settings
Trigger Source
Selects the source of the trigger event. Some of the trigger sources require additional
options.
●
IF Power:
The measurement is triggered by the power of the received signal, converted into
an IF signal. The trigger event coincides with the rising or falling edge of the detec-
ted LTE burst (i.e. for an SRS signal, the start or end of an SRS symbol). Parame-
ter
●
…External…:
External trigger signal fed in via TRIG A or TRIG B on the rear panel of the instru-
ment.
Remote command:
Trigger Slope
Qualifies whether the trigger event is generated at the rising or at the falling edge of
the trigger pulse. This setting has no influence on the evaluation of trigger pulses provi-
ded by other firmware applications.
Remote command:
GUI Reference
深圳德标仪器
135-1095-0799
