Anritsu S113C Betriebsanweisung PDF herunterladen (Seite 83)

Step 8.

Press the MEASURE key and press the

OBW soft key. Select the measurement

method (dB Down or % of Power) by pressing the

METHOD soft key. The cur-

rently selected method is shown in the lower left of the display.

Step 9. Press the dBc or % soft keys to adjust the settings as appropriate.

Step 10. Press the

MEASURE ON/OFF soft key to initiate the measurement. OBW will

appear to the left of the graph when the occupied bandwidth measurement is on.

Figure 5-6 shows the occupied bandwidth results using the % of power method on a CDMA

signal.

When the occupied bandwidth measurement is on, an

OBW icon appears to the left of the

display. Occupied bandwidth is calculated at the end of a sweep. An hourglass is displayed

as the calculations are performed.

5-11

Chapter 5 Spectrum Analyzer Measurements

Figure 5-6. Occupied Bandwidth

CW IS-95 CDMA

Reference Level –15 dBm –10 dBm

Input Attenuation Level Auto Auto

Resolution Bandwidth Auto 10 kHz

Video Bandwidth Auto 30 kHz

SgLabs

www.sglabs.it

tel. +39 0755149360

SgLabs

www.sglabs.it

tel. +39 0755149360

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Anritsu S113C Betriebsanweisung Seite 83