Rohde & Schwarz CMU-K20, Руководство по эксплуатации

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Signalling: Receiver Quality Measurements
CMU-K20/K21/K22/K23/K24
1115.6088.12 4.138 E-12
Measurement Configurations (Receiver Quality Configuration)
The popup menu
Receiver Quality Configuration
contains two tabs to define the parameters for the bit
error rate measurement.
The popup menu
Receiver Quality Configuration
is opened by pressing the measurement control
softkey
BER/ BER Average/Neighbor Cell/BLER
at the top right in the
Receiver Quality
menu twice. It
is possible to change between the tabs by pressing the associated hotkeys.
Measurement Control (Receiver Quality Configuration – Control)
The
Control
tab controls the
Receiver Quality
measurement by determining
•
Settling times for the mobile after which the measurement is started
(AGC/Sync. Holdoff Time)
•
The
Repetition
mode
•
The
Stop Condition
for the measurement
•
The measured quantity
(Meas. Mode)
•
The levels in the traffic channel
(TCH Level BER)
set during the
Receiver Quality
measurement
With the exception of the holdoff times, all settings can be defined separately for the applications
BER
(with up to ten different test setups),
BER Average
and
BLER.
Fig. 4-63 Receiver Quality – Control
Default
The first
Default
switch overwrites all settings in the
Control
tab with default values.
Besides, there are default switches acting on every individual BER test setup, on
the continuous mode and on the
BLER
application.
Remote control
CONFigure:RXQuality:CONTrol:DEFault ON | OFF
CONFigure:RXQuality:BER<nr>:CONTrol:DEFault ON | OFF
CONFigure:RXQuality:BAVerage:CONTrol:DEFault ON | OFF
CONFigure:RXQuality:BLER:CONTrol:DEFault ON | OFF
Common
Settings
The
Common Settings
section specifies holdoff times that are necessary for the
adjustment of the mobile station to the BER measurement and the loopback of the
bit stream.
AGC Holdoff Time
Time during which the mobile can adjust itself to the new RF
level at the beginning of the Receiver Quality measurement
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