Atec Agilent-U8903A - Manual (Page 2)

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Table 1. Comparison of frequency range and accuracy
U8903A HP 8903B
Frequency range DC and 10 Hz to 100 kHz 20 Hz to 100 kHz
Frequency accuracy 5 ppm (0.0005%) 0.004%
Table 2. Comparison of accuracy and ranges in AC and DC level measurements
U8903A HP 8903B
AC voltage input range 0 V to 140 V
rms
0.3 mV
rms
to 300 V
rms
AC accuracy ± 1% ± 4%
DC voltage input range 0 to ± 200 V 4 to 300 V
DC accuracy ± 1% ± 1%
Table 3. Comparison of range and residual THD+N measurements
U8903A HP 8903B
Frequency range 10 Hz to 100 kHz 20 Hz to 100 kHz
Residual THD+N
(signal distortion)
at 80 kHz BW ≤ –101 dB (at 1 kHz, 1 V
rms
),
20 Hz to 20 kHz
–80 dB (or 15 µV),
20 Hz to 20 kHz
Accuracy ± 0.5 dB (< 20 kHz)
± 0.7 dB (< 100 kHz) ± 1 dB (20 Hz to 20 kHz)
± 2 dB (20 to 100 kHz)
Figure 1. The new U8903A audio analyzer (left) offers numerous improvements over the widely used HP 8903B (right).
Replace your 8903B and add
next-generation capabilities
For nearly two decades, the HP 8903B
provided unparalleled versatility and
performance in audio applications.
The U8903A builds on the legacy of
the 8903B by offering faster single-
point measurements (0.4 sec versus
3.0 sec) as well as a wider frequency
range, expanded performance, and
greater functionality (Tables 1, 2, and
3). With the U8903A, you can con-
figure measurements faster through
its graphical user interface (GUI)
and one-button selection of major
operating modes. The color screen
lets you view dual-parameter displays
from one or two channels as well
as graphical displays of sweeps, fre-
quency spectra, and more (Figure 1).
To makes the transition easy, the
next-generation replacement for the
HP 8903B audio analyzer features
a built-in code emulator which
automatically converts 8903B R2D2
code directly into SCPI commands
used by the U8903A. The Agilent
application note Migrating Code from
the 8903B to U8903A (5990-4135EN)
and the U8903A Programming Guide
(U8903-90027) provide additional
resources to assure you get the most
from this new class of audio analyzer.