General Description
R&S
®
CMW-KM750/-KM751
31
User Manual 1173.9670.02 ─ 05
●
EVM, Magnitude Error, Phase Error, I/Q Origin Offset, I/Q Imbalance, Frequency
Error, Waveform Quality, Transmit Time Error (relative to an external trigger event)
and Peak Code Domain Error.
●
Occupied Bandwidth (OBW): width of a frequency range around the assigned chan-
nel frequency containing 99% of the total integrated power of the transmitted spec-
trum.
See also: "TX Measurements" in the R&S CMW user manual, chapter "System Overview"
RX Measurement
For information about this measurement refer to
chapter 3.2, "TD-SCDMA RX Tests"
The table provides the following results:
●
Blocks: Number of transport data blocks received since the start of the measurement
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Bit Error Rate (BER): Percentage of received data bits that were erroneous
●
Block Error Ratio (BLER): Percentage of received transport data blocks containing
at least one erroneous bit. One data block contains 244 bits.
For additional information refer to
chapter 3.6.8, "Common View Elements"
3.6.6 Selecting and Modifying Views
Use the "Display" parameters to select the views and to change the appearance and
contents of the views. Depending on the selected view the following "Display" hotkeys
are available at the bottom of the GUI:
Hotkey
Description
"Select View ..."
Switch to a certain detailed view or overview.
Alternatively select a diagram in the overview and press ENTER or the rotary
knob.
"Select Trace ..."
Select the trace types to be displayed in the view.
"Select Diagram ..."
Select the diagrams (preselected slot / multislot) to be displayed.
"X Scale... / Y Scale..."
Modify the ranges of the X-axis and the Y-axis.
"Scalar Slot ..."
Modify the slot used for statistical evaluation of single-slot results.
"Spreading Factor..."
Select the spreading factor used to determine the CDP and CDE results displayed
in the Code Domain Monitor.
"Channel Index ..."
Modify the code channel displayed in the CDP or CDE multislot diagram.
"Select Unit ..."
Selects the unit of the Y-axis of the ACLR diagram: dBm or dB (relative to carrier
power)
Additional options are available in the "Measurement Control" section of the configuration
dialog.
Measurement Results
