Keysight FieldFox Handheld Analyzers Service Guide 23
General Product Information
FieldFox Options
Option 209, Extended Range Transmission Analysis (ERTA)
ERTA can be used to measure the scalar transmission gain or loss of an RF
system. It is useful when measuring long lossy cables where the two ends
cannot easily be brought together, such as those bolted in on ships or aircrafts.
It is also useful in measuring the insertion loss of waveguide systems, or using
the frequency-offset feature, devices such as mixers and converters.
ERTA measurements are based on two FieldFoxes; one at each end of the
measured DUT. One FieldFox is the source and reference receiver (R), while the
other is the measurement receiver (B). The two FieldFoxes are synchronized
using hardware triggering. By taking advantage of FieldFox's InstAlign
technique, ERTA can be used to make accurate gain or loss measurements.
Option 210, Vector Network Analyzer Transmission/Reflection
A base combination analyzer includes a cable and antenna analyzer.
Available on N991xA Combination models. Base option available for N992xA
models only.
Option 210 adds:
—A vector network analyzer mode with transmission/reflection or S21 and
S11 measurements, both magnitude and phase. Available calibrations are
CalReady, one-port OSL, response and enhanced response.
— Insertion loss measurement to the base cable and antenna analyzer or CAT
mode.
— 2-port transmission measurement to the vector voltmeter mode, available
as Option 308.
— Tracking capability to the spectrum analyzer independent source, available
as Option 233 (source and spectrum analyzer set to sweep a frequency
range, in sync)
Option 211, Vector Network Analyzer Full 2-Port S Parameters
For the N991xA Combination models of FieldFox, Option 211 provides
transmission/reflection or S21 and S11 measurement capabilities, along with
one-port and enhanced response calibrations. Additionally for the N991xA
Combination models and the N992xA VNA models, Option 211 provides all four
S-parameters - forward and reverse (S11, S21, S12, S22), and full 2-port
calibration. Full 2-port calibration is the most accurate calibration available
with FieldFox network analyzers.
Option 211 also adds A/B and B/A measurement capabilities to the vector
voltmeter mode, available as Option 308.
— Adds reverse measurements to the VNA
— All four S-parameters (S21, S11, S12, S22), magnitude and phase
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