Wasp Bar Code WPS100 - Manual (Page 163)

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Symbologies
Code 39 Decode Performance
This option offers three levels of decode performance or “aggressiveness” for Code 39
symbols. Increasing the performance level reduces the amount of required bar code
orientation, which is useful if you are scanning very long and/or truncated bar codes.
Increased levels reduce decode security.
If you enable this option, you may select a Decode Performance level from the following
pages to suit your performance needs.
Note: This option only works with Code 39 One Discrete Length.
*Enable Code 39 Decode Performance
Disable Code 39 Decode Performance