Specifications

78 Chapter 9
Measuring Digital Communications Signals
Making Multi-Carrier Power (MCP) Measurements
Measuring Digital Communications
Signals
Press Meas Setup, Carrier Setup, Carriers, 10, Enter.
Step 6. Configure carrier 5 to have no power present:
Press
Meas Setup, Carrier Setup, Configure Carriers, Carrier, 5, Enter,
Carrier Pwr Present (No).
Step 7. Repeat step 6, configuring carrier 6 to have no power present.
Step 8. Display the results in full screen view (see Figure 9-9):
Press
Display, Full Screen.
Figure 9-9 MCP Measurement on a Base Station W-CDMA Signal
In this example, the intermodulation falls outside the transmit
channels which are marked by the colored vertical lines. The white set
indicates the reference carrier. The red sets contain the carriers with
power present and the blue lines mark the carriers without power
present. Limits for the upper and lower offsets can also be set as shown
in the example: “Making Adjacent Channel Power (ACP)
Measurements” on page 74.
NOTE Press the Return key to exit the full screen display without changing
any parameter values.
Step 9. View the results table of carriers 7-10:
Press
Meas Setup, Carrier Result, 7, Enter.
Step 10. View the results in a combined spectrum and bar graph (see
Figure 9-10):
(ESA) Press
View/Trace, Combined.
(PSA) Press
Trace/View, Combined.