Hotkey Description; Ref. Marker; Enable Or Disable The Reference Marker And Select The Marker Position. If Sev; Eral Traces Can Be Displayed, A Trace Can Also Be Selected - Rohde & Schwarz R&S CMW-KM5 Series User Manual

®
R&S CMW-KM5xx/-KS5xx
●
Carrier frequency error: offset between the measured carrier frequency and the
nominal RF frequency of the measured radio channel
●
Timing error: Difference between the actual timing and the expected timing. The
timing error measurement requires an "external" trigger signal to derive the expec-
ted timing.
Suitable trigger signals are e.g. the PRACH trigger signal provided by the signaling
application or an external trigger fed in at the TRIG A or TRIG B connector.
The unit T
the Time
●
TX power: received power, RMS averaged over all samples within the preamble
duration
●
Peak power: peak power of all samples within the preamble duration
For additional information, refer to
on page 916.
4.2.9.7 Selecting and Modifying Views
Press the "Display" softkey to show hotkeys for view configuration. They change the
appearance and contents of the active view. The following hotkeys are available at the
bottom of the GUI:
Hotkey
"Select View ..."
"Select Trace ..."
"X Scale... / Y Scale..."
Additional options are available in the "Measurement Control" section of the configura-
tion dialog.
4.2.9.8 Using Markers
Press the "Marker" softkey to show hotkeys for marker configuration. They activate
markers and modify their position. The following hotkeys are available at the bottom of
the GUI:
Hotkey

"Ref. Marker ..."

"Marker 1 /2 ..."
"Select Trace Mode"
User Manual 1173.9628.02 ─ 24
stands for the basic LTE time unit, see
s
Domain", on page 905.
Chapter 4.2.9.9, "Common View
Description
Switch to a certain detailed view or overview.
Alternatively select a diagram in the overview and press ENTER or the
rotary knob.
Select the trace types to be displayed in the view.
Modify the ranges of the X-axis and the Y-axis.
Description

Enable or disable the reference marker and select the marker position. If sev-

eral traces can be displayed, a trace can also be selected.

Enable or disable marker 1 or 2 and define the marker position (absolute or rel-
ative to the reference marker).

Depending on the trace mode, a trace can also be selected.

Define whether markers 1 and 2 are set to the same trace as the reference

marker (collective) or to selectable individual traces.

LTE PRACH Measurement
General Description
Chapter 4.2.7.2, "Preambles in
Elements",
915