The Spectrum Application (RF Measurements)
R&S
®
FPL1000
113
User Manual 1178.3370.02 ─ 09
c) Select "Time Dom Power Config".
d) Set the "Limits" state to "On".
e) Select the "Left Limit" input field.
f) By turning the rotary knob clockwise, move the vertical line "S1" to the start of
the burst.
g) Select the "Right Limit" input field.
h) By turning the rotary knob clockwise, move the vertical line "S2" to the end of
the burst.
The R&S
FPL1000 displays the average (mean) power during the activation phase
of the burst.
Figure 7-14: Measurement of the average power during the burst of a GSM signal
Measuring the Edges of a GSM Burst with High Time Resolution
Due to the high time resolution of the R&S
FPL1000 at the 0 Hz display range, the
edges of TDMA bursts can be measured precisely. The edges can be shifted to the
display area using the trigger offset.
Figure 7-15: Test setup
Table 7-7: Signal generator settings (e.g. R&S SMW)
Frequency
890 MHz
Level
0 dBm
Modulation
GSM, one timeslot activated
Measurements and Results
