Atec Rohde-Schwarz-FSL3-FSL6 - Manual (Page 12)

12 Spectrum Analyzer ¸FSL
Channel power measurements
Channel power measurements use integration to determine
the power within a defined channel bandwidth. The full-
featured RMS detector is used to measure the correct pow-
er independent of the signal, which ensures good repeatability
and accuracy. The channel width can be defined by the user or
selected from an extensive list of transmission standards.
Adjacent channel power (ACP, MC-ACP) measurements, for
example cdmaOne
The ACP measurement function determines the adjacent chan-
nel power as an absolute value or relative to the useful carrier.
The ¸FSL offers predefined settings for many transmission
standards, but parameters can also be user-defined, with chan-
nel widths and spacings for up 12 channels and up to 3 adja-
cent channels.
Fast ACP in time domain with standard-compliant channel
filters
The fast ACP function measures the adjacent channel power in
the time domain using standard-compliant channel filters. This
reduces the measurement time necessary for a specific repeat-
ability by a factor of 10. It also provides an easy way to deter-
mine transient, time-dependent adjacent channel power.