Agilent Technologies 8590 Series Service Manual page 404

Analyzer Options and Block Diagrams
Option Descriptions
Narrow Resolution Bandwidths and Precision
Frequency Reference (Option 140)
For 8591E, 8593E, 8594E, 8595E, and 8596E only. This option is a
combination of Option 130 and Option 004. Option 140 provides
additional narrow resolution bandwidths of 30 Hz, 100 Hz, and 300 Hz.
These bandwidths improve sensitivity and allow you to resolve closely
spaced signals. The option also includes an internal precision-frequency
reference that improves stability and provides increased absolute
frequency accuracy. The precision frequency reference makes the
narrow resolution bandwidths more effective and easier to use.
DSP, Fast ADC and Digital Demodulator
(Option 151)
For 8593E, 8594E, 8595E, and 8596E only. Option 151 supplies the
hardware required for fast time domain sweeps, digital demodulation
measurements, and digital signal processor-assisted (DSP)
measurements.
Option 151 provides a subset of Option 101 fast time domain functions.
Option 101 allows zero span sweep times as low as 20 µs with a step
resolution of 20 µs (20 µs, 40 µs, 60 µs, and so forth). Option 151 allows
zero span sweep times as low as 40 µs with a sequence of 40 µs, 80 µs,
160 µs, 320 µs, and 160 µs step size thereafter. All trace functions are
available for these fast zero-span sweeps.
Since the sweep times offered by Option 151 are a subset of those
offered by Option 101, the analog+ display mode is not supported for
Option 151.
Option 101 or Option 151 support negative peak detection for
an 8593E, 8594E, 8595E, and 8596E. The negative peak detector
capability is useful for video modulator balance adjustments and
intermodulation distortion measurements. Option 101 allows negative
peak detection with sweep times as high as 200 ms. Option 151 allows
negative peak detection with sweep times as high as 800 ms.
Option 151 requires the installation of Option 160 or 163.
PDC/PHS/NADC/CDMA Firmware for Option 151
(Option 160)
For 8593E, 8594E, 8595E, and 8596E with Option 151 only. Option 160
provides the digital signal processing (DSP) firmware ROMs necessary
to perform PDC, PHS, or NADC digital demodulation-based
measurements. It also includes DSP-assisted measurements for CDMA.
404 Chapter 10