Measurements and Results
R&S
®
FSVA3000/ R&S
®
FSV3000
140
User Manual 1178.8520.02 ─ 01
Table 7-7: Signal generator settings (e.g. R&S SMW)
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
1. Switch off the power measurement.
a) Press the [MEAS] key.
b) Select "Zero Span".
2. Increase the time resolution by setting the sweep time to
100
µs
([SWEEP] >
"Sweep Time 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
FSV/A displays the rising edge of the GSM burst.
Figure 7-16: Rising edge of the GSM burst displayed with high time resolution
4. Move the falling edge of the burst to the center of the display. To do so, switch the
trigger "Slope" to "Falling" ([TRIG] > "Trigger/ Gate Config" ).
The R&S
FSV/A displays the falling edge of the GSM burst.
Basic Measurements