84 Chapter 3
Basic Operation
Enabling Options (E4438C Only)
Enabling Options (E4438C Only)
You can retrofit a signal generator after purchase to add new capabilities. Some new optional features are
implemented in hardware that you must install. Some options are implemented in software but require the
presence of optional hardware in the instrument. This example shows you how to enable software options.
Enabling a Software Option
A license key (provided on the license key certificate) is required to enable each software option.
1. Access the Software Options menu:
Utility > Instrument Adjustments > Instrument Options > Software Options
The following is an example of the signal generator display, which lists any enabled software options,
and the software options that can be enabled:
2. Verify that the host ID shown on the display matches the host ID on the license key certificate.
The host ID is unique for each instrument. If the host ID on the license key certificate does not match
your instrument, the license key cannot enable the software option.
3. Verify that any required hardware is installed. Software options are linked to specific hardware options,
so before a software option can be enabled, the appropriate hardware option must be installed. For
example, Option 400, W-CDMA, requires Option 001/601 or 002/602, Internal Baseband Generator. If
the software option that you intend to install is listed in a grey font, the required hardware may not be
installed (in the Hardware Options menu, look for an X in the “Selected” column of the appropriate
hardware option).
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