Chapter 2 21
E4438C Vector Signal Generator Overview
Options
Options
ESG signal generators have hardware, firmware, software, and documentation options. The data sheet
shipped with your signal generator provides an overview of available options. For more information, visit
the Agilent ESG web page at http://www.agilent.com/find/esg, selected the desired ESG model, and then
click the
Options tab.
Understanding Baseband Generator Options
Your E4438C can have one of four baseband generator options, depending upon when you first purchased
the instrument and whether or not the baseband generator has been upgraded to a newer version. The options
consist of the following:
Option 001 internal baseband generator with 8 megasample memory (no longer available)
Option 002 internal baseband generator with 32 megasample memory (no longer available)
Option 601 internal baseband generator with 8 megasample memory and digital bus capability
Option 602 internal baseband generator with 64 megasample memory and digital bus capability
These four baseband generators are similar in some respects, and very different in others. They are similar in
that all four versions support the same signal generation formats, such as W-CDMA, cdma2000, WLAN,
and many others. All four versions offer both arbitrary waveform capability and real-time baseband
generation capability.
The first obvious difference between these four baseband generators is that they offer different playback
memory sizes. This is primarily important to users providing their own arbitrary waveform files, since these
may be very large in size. Of the signal creation personalities offered by Agilent, currently only Signal
Studio for WLAN and Signal Studio for Pulse Building are capable of creating waveforms that can exceed
the 8 megasample memory of the Option 001/601 models.
The second important difference between these baseband generators is that only Option 601 and 602 offer
digital bus capability. This proprietary digital bus is used for communication with the Agilent Baseband
Studio suite of products. Baseband Studio products provide a range of baseband signal processing functions,
including baseband digital outputs, fading, and hard drive waveform streaming. These functions are not
compatible with Options 001 or 002. An upgrade kit is available, however, if you want to add Option 601 or
602 to your existing E4438C ESG.
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