Setting Amplitude
3- 128
WCA230A & WCA280A User Manual
Sets the scale of the amplitude of the displayed waveform.
Ref Level.
Sets the maximum (top) edge of the vertical axis. The available range
depends on the measurement frequency band as shown in Table 3--18.
Table 3- 18: Reference level setting range
Frequency band
Setting range
Baseband
--30 to +20 dBm (2 dB step)
RF
(WCA230A)
RF1
(WCA280A)
--51 to +30 dBm (1 dB step)
RF2, 3 (WCA280A)
--50 to +30 dBm (1 dB step)
IQ (Option 03 only)
--10 to +20 dBm (10 dB step)
Auto Level.
Automatically adjusts reference level for the best system perfor-
mance based on power measurement within the set span.
NOTE
. An input signal within 10 MHz of the center frequency may cause Auto
Level to choose the wrong reference level, even if the span setting does not make
the signal appear on sereen. To prevent nonlinear operation, the reference level
may need to be adjusted manually.
Auto Level will force the analyzer to acquire new data, which will overwrite the
existing data. To scale the existing displayed waveform, do not use Auto Level.
Instead, use the View: Scale menu.
Ref Level
Vertical Scale
Figure 3- 88: Setting the amplitude
AMPLITUDE
Summary of Contents for WCA200A
Page 6: ......
Page 8: ......
Page 29: ...Getting Started...
Page 30: ......
Page 57: ...Operating Basics...
Page 58: ......
Page 86: ...Functional Overview 2 28 WCA230A WCA280A User Manual...
Page 125: ...Reference...
Page 126: ......
Page 208: ...Modulation Analysis Demod Mode 3 82 WCA230A WCA280A User Manual...
Page 272: ...Setting Timing Parameters 3 146 WCA230A WCA280A User Manual...
Page 346: ...Display Line 3 220 WCA230A WCA280A User Manual...
Page 358: ...Marker Operation and Peak Search 3 232 WCA230A WCA280A User Manual...
Page 388: ...File Format 3 262 WCA230A WCA280A User Manual...
Page 392: ...Screen Copy 3 266 WCA230A WCA280A User Manual...
Page 393: ...Appendices...
Page 394: ......
Page 430: ...Appendix C Digital Demodulation Symbol Mapping C 4 WCA230A WCA280A User Manual...
Page 437: ...Glossary...
Page 438: ......
Page 446: ...Glossary Glossary 8 WCA230A WCA280A User Manual...
Page 447: ...Index...
Page 448: ......