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22 Chapter 1
Agilent EXA Signal Analyzer
Frequency and Time
Description Specifications Supplemental
Information
Frequency Counter
a
a. Instrument conditions: RBW = 1 kHz, gate time = auto (100 ms), S/N ≥ 50 dB,
frequency = 1 GHz
See note
b
b. If the signal being measured is locked to the same frequency reference as the analyzer, the
specified count accuracy is ±0.100 Hz under the test conditions of footnote a. This error is a
noisiness of the result. It will increase with noisy sources, wider RBWs, lower S/N ratios, and
source frequencies >1 GHz.
Count Accuracy ±(marker freq. × freq. Ref. Accy. + 0.100 Hz)
Delta Count Accuracy ±(delta freq. × freq. Ref. Accy. + 0.141 Hz)
Resolution 0.001 Hz
Description Specifications Supplemental Information
Frequency Span
Range
Swept and FFT
Option 503 0 Hz, 10 Hz to 3.6 GHz
Option 507 0 Hz, 10 Hz to 7 GHz
Option 513 0 Hz, 10 Hz to 13.6 GHz
Option 526 0 Hz, 10 Hz to 26.5 GHz
Resolution 2 Hz
Span Accuracy
Swept
±(0.25% × span + horizontal resolution
a
)
a. Horizontal resolution is due to the marker reading out one of the trace points. The points are
spaced by span/(Npts − 1), where Npts is the number of sweep points. For example, with the
factory preset value of 1001 sweep points, the horizontal resolution is span/1000. However,
there is an exception: When both the detector mode is “normal” and the span > 0.25 × (Npts −
1) × RBW, peaks can occur only in even-numbered points, so the effective horizontal resolu-
tion becomes doubled, or span/500 for the factory preset case. When the RBW is auto coupled
and there are 1001 sweep points, that exception occurs only for spans > 750 MHz.
FFT
±(0.10% × span + horizontal resolution
a
)