Taking Measurements
3- 114
YBT250 Field Transmitter & Interference Tester User Manual
Measuring W-CDMA Code Power
Requires Option WD1
The W-CDMA Code Power displays graphs that indicate the power
on each Orthogonal Variable Spreading Factor (OVSF) code in the
signal. The bottom graph shows the Code Domain Power in all
OVSF codes; the top graph shows a zoomed-in display of one fourth
of the OVSF codes.
The YBT250 displays the exact power on any specified code relative
to the Total Power or the Pilot Power (power in the P-CPICH
channel). You specify which signal to use as a reference for the Code
Power on the Meter tab of the Setup window. The spreading factor is
automatically set to 512.
To measure W-CDMA Code Power:
1.
Tap the
Measurement
button.
2.
Select a W-CDMA signal standard.
3.
Select a channel.
4.
Tap
Select Measurement...
.
5.
Tap
Code Power
.
See Figure 3--54. The upper graph shows a magnified section of
the lower graph. Use the scroll bar at the bottom of the window
to scroll the upper graph.
Summary of Contents for NetTek YBT250
Page 4: ......
Page 12: ...Table of Contents viii YBT250 Field Transmitter Interference Tester User Manual...
Page 19: ...Getting Started...
Page 20: ......
Page 39: ...Operating Basics...
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Page 60: ...Operating Basics 2 20 YBT250 Field Transmitter Interference Tester User Manual...
Page 72: ...Connecting a Signal 2 32 YBT250 Field Transmitter Interference Tester User Manual...
Page 90: ...Changing Instrument Settings 2 50 YBT250 Field Transmitter Interference Tester User Manual...
Page 101: ...Reference...
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Page 136: ...Displaying a Signal Spectrum 3 34 YBT250 Field Transmitter Interference Tester User Manual...
Page 170: ...Locating Interference 3 68 YBT250 Field Transmitter Interference Tester User Manual...
Page 259: ...Appendices...
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Page 290: ...Appendix B Accessories B 4 YBT250 Field Transmitter Interference Tester User Manual...
Page 315: ...Glossary...
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Page 322: ...Glossary Glossary 6 YBT250 Field Transmitter Interference Tester User Manual...
Page 323: ...Index...
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