User Manual

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
273User Manual 1178.3370.02 ─ 03
The channel power currently measured on the Tx channel is stored as a fixed ref-
erence power. The reference value is displayed in the "Reference" field of the
result table (in relative ACLR mode).
3. Start a new measurement.
The resulting power is indicated relative to the fixed reference power.
4. Repeat this for any number of measurements.
5. To start a new measurement without the fixed reference, temporarily define a sec-
ond channel or preset the instrument.
7.2.3.6 Measurement Examples
The R&S FPL1000 has test routines for simple channel and adjacent channel power
measurements. These routines give quick results without any complex or tedious set-
ting procedures.
A programming example demonstrating an ACLR measurement in a remote environ-
ment is provided in Chapter 8.6.3.8, "Programming Examples for Channel Power Mea-
surements", on page 557.
● Measurement Example 2 – Measuring Adjacent Channel Power of a W-CDMA
Uplink Signal......................................................................................................... 273
● Measurement Example 3 – Measuring the Intrinsic Noise of the R&S FPL with the
Channel Power Function.......................................................................................275
Measurement Example 2 – Measuring Adjacent Channel Power of a W-CDMA
Uplink Signal
Test setup:
Signal generator settings (e.g. R&S FPL1000 SMW):
Frequency: 1950 MHz
Level: 4 dBm
Modulation: 3GPP W-CDMA Reverse Link
Procedure:
1. Preset the R&S FPL1000.
Measurements and Results