Monitoring Signal Characteristics
R&S
®
SMW200A
617User Manual 1175.6632.02 ─ 30
Figure 9-15: Power spectrum with attenuated GSM signal and shifted WCDMA signal
At the RF output, the GSM signal appears attenuated with 15 dB only because the
power level is measured with large bandwidth.
For details, see Chapter 9.2, "Querying Information on the Baseband Power Lev-
els", on page 621.
6. Zoom in the relevant area of the diagram.
See "To zoom into a diagram" on page 617.
7. Enable markers to readout the measured data, for example the frequency offset or
the power level of the signals.
See "To enable markers to readout exact measured data" on page 618.
8. Select "Baseband > Baseband Offsets > Baseband = 0" to disable the frequency
offset.
9. Select "Baseband B > State > Off" to disable the GSM signal
To zoom into a diagram
In an enlarged diagram:
1. Use the one-finger zoom to zoom with a fixed zoom factor.
2. Use the two-finger zoom to do a custom zoom.
This zoom works like the two-finger pinching for magnifying images on your cell
phone.
If the diagram is zoomed, an overview window appears.
3. Move the visible area in the graphics or in the overview window.
4. For the reverse operation, select "Zoom out".
Displaying Baseband Signal Characteristics in Real-Time
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