Agilent Technologies N9010A - Manual (Page 25)

Chapter 1 25
Agilent EXA Signal Analyzer
Frequency and Time
Description Specifications Supplemental
Information
Frequency Counter
a
See note
b
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
a. Instrument conditions: RBW = 1 kHz, gate time = auto (100 ms), S/N
≥ 50 dB, frequency = 1 GHz
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.
Description Specifications Supplemental
Information
Frequency Span
Range
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
Option 532 0 Hz, 10 Hz to 32 GHz
Option 544 0 Hz, 10 Hz to 44 GHz
Resolution 2 Hz
Span Accuracy
Swept
±(0.25% × span + horizontal resolution a
)
FFT
±(0.1% × span + horizontal resolution a
)
a. Horizontal resolution is due to the marker reading out one of the sweep 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 resolution 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.