The Spectrum Application (RF Measurements)
R&S
®
FPL1000
251
User Manual 1178.3370.02 ─ 03
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
FPL1000 displays the falling edge of the GSM burst.
Figure 7-17: Falling edge of the GSM burst displayed with high time resolution
Measuring the Signal-to-Noise Ratio of Burst Signals
When TDMA transmission methods are used, the signal-to-noise ratio or the dynamic
range for deactivation can be measured by comparing the power values during the
activation phase and the deactivation phase of the transmission burst. Therefore, the
R&S
FPL1000 provides a measurement for absolute and relative power in zero span.
In the following example, the measurement is performed using a GSM burst.
Signal-to-Noise Ratio of a GSM Signal
Figure 7-18: Test setup
Measurements and Results
