User`s guide

Learn Pattern - A pattern may be "learned" if it is not already stored as a .ptn file or
too long to be manually entered in Edit Pattern. The data stream must be
relatively jitter free and a suitable pattern marker must be available as an
external arm.
The number of bits in the pattern must be known and the Bit Rate must be
entered as precisely as possible. If there are errors trying to "learn" at a high bit
rate and it is possible to have a slower, clean pattern (from a pattern generator),
the pattern may be learned at this slower rate (adjusting Bit Rate accordingly).
Note: Include DCD + ISI calibration is to be used only in special circumstances. Enabling this will
directly subtract the DCD + ISI when the pattern is learned from the subsequent measured values. This
is not always appropriate because the two values are not necessarily linear.
!
Using this function assumes that the "learn" will be performed on a perfect signal (from a generator
with short cables) at the intended measurement rate, then this learned pattern (now with DCD + ISI
values) is used for the measurement.
Load Mask - Opens a dialog box for choosing a previously saved mask.
Load Pattern - Load previously defined pattern file.
Low Limit - Lower limit of Bit Error Range over which the Effective Jitter is derived.
LPF (kHz) - User defined Low Pass Filter value, in kilohertz, for the DCD + ISI HPF option. Default is 531.25kHz.
Macro Edit command (Action menu) - Allows a user to modify or create a macro that can then be replayed.
Macro Interface Overview - GigiView provides Macro Record and Playback features for scripting and automating
activities performed on a repetitive basis. The Macro interface is based on Microsoft's VBScript language that
includes the ability to control program execution using conditional and looping statements. See Appendix A for
detailed explanations of all macro commands.
Macros can be recorded and then modified or written from scratch. The Macro interface can also be used to access
GigiView functionality from an external application. In particular Microsoft Visual Basic may be used, but other
programs which support the VBScript language such as Microsoft Word and Excel may also be used.
Macro Play (Action menu) - Allows a user to playback a series of steps that were previously recorded.
Macro Record (Action menu) - Allows a user to record a series of steps that can then be replayed.
Glossary © WAVECREST Corporation 2005
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