Agilent Technologies N9010A - Manual (Page 36)

36 Chapter 1
Agilent EXA Signal Analyzer
Amplitude Accuracy and Range
f. Preselector centering applied.
Description Specifications Supplemental Information
IF Frequency Response
a
a. The IF frequency response includes effects due to RF circuits such as input filters, that are a function of
RF frequency, in addition to the IF passband effects.
Modes above 18 GHz
b
b. Signal frequencies between 18 and 26.5 GHz are prone to additional response errors due to modes in the
Type-N connector used with frequency Option 526. With the use of Type-N to APC 3.5 mm adapter part
number 1250-1744, there are nominally six such modes. These modes cause nominally up to
−0.35 dB
amplitude change, with phase errors of nominally up to
±1.2 ° .
(Demodulation and FFT
response relative to the
center frequency)
Center
Freq (GHz)
Span
c
(MHz)
c. This column applies to the instantaneous analysis bandwidth in use. In the Spectrum Analyzer Mode,
this would be the FFT width.
Preselector
Max Error
d
(Exception
e
)
d. The maximum error at an offset (f) from the center of the FFT width is given by the expression
± [Midwidth Error + (f × Slope)], but never exceeds ±Max Error. Here the Midwidth Error is the error at
the center frequency for a given FFT span. Usually, the span is no larger than the FFT width in which
case the center of the FFT width is the center frequency of the analyzer. When using the Spectrum Ana-
lyzer mode with an analyzer span is wider than the FFT width, the span is made up of multiple concate-
nated FFT results, and thus has multiple centers of FFT widths; in this case the f in the equation is the
offset from the nearest center. Performance is nominally three times better at most center frequencies.
e. The specification does not apply for frequencies greater than 3.6 MHz from the center in FFT widths of
7.2 to 8 MHz.
Midwidth Error
(95th Percentile)
Slope (dB/MHz)
(95th
Percentile) RMS
f
(nominal)
f. The “rms” nominal performance is the standard deviation of the response relative to the center fre-
quency, integrated across the span. This performance measure was observed at a center frequency in
each harmonic mixing band, which is representative of all center frequencies; it is not the worst case fre-
quency.
<3.6 ≤10 ±0.40 dB ±0.12 dB ±0.10
0.04 dB
≥3.6, ≤26.5 ≤10 On
0.25 dB
≥3.6 ≤10 Off g
g. Option MPB is installed and enabled.
±0.45 dB ±0.12 dB ±0.10
0.04 dB
>26.5 ≤10 On
0.35 dB