10 Hardware-Accelerated Fast Power Measurement
(Remote Command Only)
The Fast Power option (FP2) enables very fast channel power measurements for
instruments with the prerequisite hardware (DP2 and/or B40). It accomplishes this
by performing real-time overlapped FFTs at the hardware layer, using software for
basic post-processing before returning the result. The upshot of this approach is
improved throughput for user applications that require many sequential power
measurements.
The analysis bandwidth of FP2 may be limited by the licenses in the instrument.
NOTE
FP2 is remote-only, which means the instrument does not switch to any particular
Mode or measurement. FP2 commands can be sent while another application is
in use on the front panel.
Each Fast Power measurement can be predefined using an array index, and up to
1000 measurements can be stored. In the following documentation, instances of
[1,2,…,999] can be substituted with a particular measurement index, for example,
:CALC:FPOW:POW1?, :CALC:FPOW:POW2?, :CALC:FPOW:POW134?. In this way,
power measurements can be defined one time in a batch, and then executed
multiple times without having to redefine them, similar to “list mode” on other
measurements.
In addition to basic channel power measurements, there are several other
measurement “functions” for each channel, including peak power, peak frequency,
and power spectral density.
X-Series Signal Analyzers
Short Range Comms & IoT Mode User's &Programmer's Reference
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