Measurements
R&S
®
FSW
132User Manual 1173.9411.02 ─ 19
Table 5-7: Signal generator settings (e.g. R&S SMU)
Frequency 890 MHz
Level 0 dBm
Modulation GSM, one timeslot activated
The measurement is based on the example "Measuring the Power of a GSM Burst
During the Activation Phase" on page 130.
1. Switch off the power measurement.
a) Press the MEAS key.
b) Select "All Functions Off".
2.
Increase the time resolution to 100
µs (SWEEP > "Sweeptime Manual").
3. Shift the rising edge of the GSM burst to the center of the display by defining a trig-
ger offset.
a) Press the TRIG key.
b) Select "Trigger Offset".
c) By turning the rotary knob counterclockwise, reduce the trigger offset until the
burst edge is displayed in the center of the display, or enter -50
µs.
The R&S FSW displays the rising edge of the GSM burst.
Fig. 5-16: Rising edge of the GSM burst displayed with high time resolution
Basic Measurements
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