Rohde & Schwarz CMU-K20, Operating Manual

Page: 178 / 646

Signalling: Power Measurements
CMU-K20/K21/K22/K23/K24
1115.6088.12 4.100 E-12
POWer
commands, e.g.
CONFigure:POWer:PCL...
P/t Access
Burst
The
P/t Access Burst
hotkey selects the power versus time measurement of the
access burst.
Note: There is no mode where the mobile transmits access bursts in
consecutive TDMA frames. As a consequence, in the
P/t Access
GMSK
application, only one access burst can be measured when the
mobile attempts a location update (activate the application before
performing a location update). See also explanations at the beginning
of section
Power Measurements on page
4.97
.
Remote control
The
P/t Access Burst
application is selected by the keywords
:ABURst[:GMSK]
in
the 3
rd
and 4
th
level of the
POWer
commands, e.g.
CONFigure:POWer
:ABURst[:GMSK]...
The following test settings depend on the application selected.
a) P/t Normal GMSK, P/t Normal 8PSK, P/t Access Burst
Analyzer
Level
The
Analyzer Level
softkey controls the level in the RF input signal path and
provides the trigger settings for the Power measurement.
Difference from Non Signalling mode (see p. 4.9 ff):
•
In
GSM400/850/900/1800/1900-MS Signalling
, the measurement is triggered by
the signal from the signalling unit or the mobile phone. Use of an external
trigger signal is not possible.
•
In
GSM400/850/900/1800/1900-MS Signalling
, the maximum input level
(RF
Max. Level)
can be set automatically according to the PCL of the mobile phone
(RF Mode
hotkey, setting
PCL
, see also
MS Signal
tab, section
Table-oriented
Version
on p. 4.160 f.).
MS Signal
The
MS Signal
softkey controls the traffic channel transmitter output signal of the
mobile phone. The MS output signal parameters are indicated in the
Overview
Menu
(see p. 4.95 ). For a detailed explanation see section
RF Signals of the MS
(Connection Control – MS Signal)
on p. 4.154 ff.
PCL
The
PCL
hotkey sets the mobile transmitter output power. This power is defined in
terms of power control levels without dimension (see section
Limit Values for
Average Burst Power (Power Configuration – Limits)
on page 4.112 .
PCL
is available only if the mobile station is set to single slot mode (see
Slot Mode
softkey on p. 4.155 ). If the MS is in multislot mode, the
Slot Config.
softkey is
displayed instead; see below.
Remote control
CONFigure:MSSignal[:CSWitched][:TCH][:SSLot]:MS:PCL
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