Tektronix RSA2200A, User Manual

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Spectrum Analysis (S/A Mode)
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RSA2203A & RSA2208A User Manual
7. Press the MARKER ➡ key on the front panel, and then press the
Analysis Time = Marker Time
side key.
The zoomed area is enclosed in a green frame.
8. When you shift the zoomed area to the left or right on the frequency axis,
perform these steps:
a. Select MARKER SETUP
→
Marker X Position and set the new
frequency center to put the marker on it.
[Mouse] Move the mouse pointer to the new frequency center and then
left-click to put the marker on it.
b. Select MARKER ➡
→
Center Zoom = Marker Freq .
The zoomed area shifts to the specified frequency.
Zoomed area
Marker
Reference cursor
Zoomed area shifted by
Center Zoom = Marker Freq
Marker
on frequency center
Figure 3- 24: Zoomed area settings using the marker
NOTE . The zoomed spectrum is calculated based on time domain data acquired
with a higher sampling rate than for obtaining a normal spectrum. So, a large
zoom ratio may cause the skirt shape of the spectrum to differ from that of the
spectrum without zoom. However, it does not affect carrier power measurement
results.