3-18 ES User’s Guide
Making Measurements
Using the BEGIN Key to Make Measurements
AUTOST files
When the analyzer's power is turned on, it first checks for an IBASIC
autostart file (AUTOSTART.BAS) on the non-volatile RAM disk and then
on the 3.5” disk. If found, the file is loaded and run. This feature
simplifies the task of turning on an automated test station at the
beginning of a working day or test session. To manually load and run an
autostart file, press .
The User BEGIN Function
The  softkey gives you the capability to redefine the
 key menu and install user-defined macro functions. Use this
key to define macros such as:
• softkeys to implement fast save/recall
• softkeys to implement most-used functions or features
• softkeys to implement often-used features that involve a number of
steps
Macros must be defined with an IBASIC program. If no
program is currently installed (either by AUTOST or
), the analyzer will automatically create a default
program.
 selects the  key menu to "user" mode
when on, and to normal operation when off.
Once you have changed the  mode to on, the same menu
will be displayed for subsequent key presses of the  hardkey.
(This is not true if your IBASIC program has changed. If the program
has changed, the  mode is reset to off.)
Use of the  function does not restrict access to any
normally available instrument feature (such as marker functions), nor
does this key affect sweep update rates.
Refer to the IBASIC example programs provided on the Example
Programs Disk for implementation requirements. Keystroke recording
may be used to modify or update  programs.
See the Automating Measurements User’s Guide Supplement for more
information.
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