Graphics and animation are used to compare narrow band and spread spectrum RF as well as direct sequence and frequency hopping technologies. The characteristics of RF signals and data security is covered, which further explains the need for RF site surveys. System connectivity is a critical component that needs to be defined for an RFDC system. Detailed graphics are used to easily describe the complex topics of terminal emulation vs. screen mapping vs. peer to peer interfaces. Wireless Mobile Data Networks Batch vs.
Bar codes come in several different languages that are referred to as symbologies.
When developing your data collection system, be sure that you are using the most efficient symbology for your application. It is important that the chosen symbology can be scanned by all participating parties and is commonly accepted by industry organizations. This video training tape begins by reviewing the history of bar codes and then introduces you to the different organizations that are actively involved in setting bar code standards. Each section reviews the individual symbologies and defines typical applications, its features and characteristics, the encoded character sets, and the data encoding structure. Once again, one of the more powerful tools provided in this presentation is a detailed questionnaire that will assist in defining which symbology is best for your application.