Keysight N9912A User Manual page 98

GSM 850-Ch 251-Up with one Offset.
Red Freqs (Mhz) added to illustrate Offset and Integ BW.
Data in the ACPR graphical chart is always presented in dBm for the carrier, and dBc
(dB below the carrier) for the offsets. This can NOT be changed. Use the Meas Type
setting (next page) to change how the data is presented in the table below the
graph.
How to select ACPR
 Press Measure__1
 Then
Channel Measurements
 Then
Adjacent Channel Power
When ACPR is selected, the following settings are maintained from a previous
measurement: Center Frequency, Preamp ON|OFF, and RF Attenuation.
Frequency Range/Channel
When a Radio Standard is selected, the appropriate center frequency or channel and
span is set automatically. The frequency or channel number can then be changed
from the Freq/Dist menu. Learn how to select a Radio Standard and channels on
page 70.
The frequency range of an ACPR measurement can also be entered using arbitrary
frequencies.
When a Radio Std is NOT selected, the center frequency of a previous measurement
is maintained when ACPR is selected.
98 FieldFox User's Guide