Ronde & Schwarz 1304.0004.03, User Manual

Page: 145 / 1076

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
145 User Manual 1178.3370.02 ─ 09
A programming example demonstrating an ACLR measurement in a remote environ-
ment is provided in
Chapter 11.6.4.8, "Programming Examples for Channel Power
Measurements" , on page 654.
● Measurement Example 2 – Measuring Adjacent Channel Power of a W-CDMA
Uplink Signal
......................................................................................................... 145
● Measurement Example 3 – Measuring the Intrinsic Noise of the R&S FPL1000 with
the Channel Power Function .................................................................................146
Measurement Example 2 – Measuring Adjacent Channel Power of a W-CDMA
Uplink Signal
Test setup:
Signal generator settings (e.g. R&S SMW):
Frequency: 1950 MHz
Level: 4 dBm
Modulation: 3GPP W-CDMA Reverse Link
Procedure:
1. Preset the R&S FPL1000.
2. Set the center frequency to 1950 MHz .
3. Select the "Channel Power ACLR" measurement function from the "Select Mea-
surement" dialog box.
4. Set the "W-CDMA 3GPP REV" standard for adjacent channel power measurement
in the "ACLR Setup" dialog box.
The R&S FPL1000 sets the channel configuration to the W-CDMA standard for
mobiles with two adjacent channels above and below the transmit channel. The
frequency span, the resolution and video bandwidth and the detector are automati-
cally set to the correct values. The spectrum is displayed in the upper window and
the channel power, the level ratios of the adjacent channel powers and the channel
configuration in the lower window. The individual channels are displayed as bars in
the graph.
5. Set the optimal reference level and RF attenuation for the applied signal level using
the "Auto Level" function.
Measurements and Results