R&S CMW-KG8 Series, Руководство пользователя

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CDMA2000 Measurements
R&S
®
CMW-KG8xx/-KM8xx/-KS8xx
736 User Manual 1173.9511.02 ─ 11
graphs of the reverse physical channels of both the I and Q signal. Separate graphs
are available for the I-branch and the Q-branch of the signal.
Fig. 5-14: CDMA2000 multi evaluation: channel time offset
The bar graphs show the time offset of the individual code channels, identified by their
names and Walsh codes. Bars for active channels are displayed in blue, bars for inac-
tive/aliased channels are displayed in grey/purple. Depending on the display setting,
the bar graphs either show the current, average, or maximum phase errors.
All offsets are relative to the Reverse Pilot Channel (R_PICH W032, the first channel in
the I-Signal diagram) which is consequently displayed with zero phase error. The y-
axis covers a symmetric timing error interval around zero. Red lines above and below
the 0 level indicate active limit checks. In case of limit violations, the excessive offset is
displayed in red.
The description of statistical measurement results is covered in chapter 5.2.7.9, "Multi
Evaluation Detailed Views: Power, Modulation Quality" , on page 737.
For additional information refer to Common Elements of Views .
5.2.7.8 Multi Evaluation Detailed Views: I/Q
The constellation and vector diagrams trace the reverse signal in the I/Q plane.
General Description
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