35 | Keysight | FieldFox Handheld Analyzers 4/6.5/9/14/18/26.5/32/44/50 GHz - Data Sheet
Extended Range Transmission Analysis (ERTA)
ERTA specifications apply to the following FieldFox models. The RF & microwave analyzers must be equipped with the spectrum
analyzer option.
– FieldFox RF & microwave analyzers: N9913A, N9914A, N9915A, N9916A, N9917A, N9918A
N9950A, N9951A, N9952A
– FieldFox microwave spectrum analyzers: N9935A, N9936A, N9937A, N9938A
N9960A, N9961A, N9962A
ERTA operation requires two FieldFoxes, each one configured with specific options, and certain accessories.
See FieldFox Configuration Guide for detailed option ordering information. Many capabilities listed in this Data Sheet require options.
System description
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.
DUT
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