Rohde & Schwarz FSQ series, Quick Start Manual

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Quick Start Guide 1313.9652.62 - 02 5.23
R&S FSQ Basic Measurement Examples
Measurements in the Time Domain
5.5.2 Measuring the Power Characteristic of Burst Signals
Because of the high time resolution of the R&S FSQ at the 0 Hz display range, the edges of
TDMA bursts can be measured precisely. The edges can be shifted to the screen area by
using the trigger offset.
5.5.2.1 Example - Measuring the Edges of a GSM Burst with High Time Resolution
Test setup:
Settings on the signal generator (e.g. R&S SMIQ):
Measurement with the R&S FSQ:
The measurement is based on the setting in section “ Example – Measuring the Power of a
GSM Burst During the Activation Phase.” on page 5.21 .
1. Switch off the power measurement.
➢
Press the MEAS key.
➢
Press the TIME DOM POWER softkey.
➢
In the submenu, set the POWER softkey to OFF .
2. Increase the time resolution to 100 µs.
➢
Press the SWEEP key and enter 100 µs .
3. Using the trigger softkey, shift the rising edge of the GSM burst to the center of the
screen.
➢
Press the TRIG key.
➢
Press the TRIGGER OFFSET softkey.
Frequency: 100 MHz
Level: 0 dBm
Modulation: GSM, one timeslot activated
Signal
generator
R&S FSQ