CompTIA RFID+ Study Guide (Exam RF0-101, includes CD-ROM) by Patrick J. Sweeney II

By Patrick J. Sweeney II

SynopsisThis entire learn advisor completely covers the CompTIA RFID+ examination, the one certification provided for radio frequency id (RFID), the expertise that's speedily becoming more popular and is predicted to fully substitute bar codes. Your learn will concentrate on interrogation region fundamentals, checking out and troubleshooting, criteria and rules, tag wisdom, layout choice, install, website research, RF physics, and RFID peripherals. The accompnaying CD-ROM presents bonus checks, an in depth thesaurus of phrases, and a searchable PDF of the publication.

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You will learn that interrogators are capable of reading tags and writing information to tags; they can directly manage various input/output (I/O) devices and offer a graphical user interface (GUI) for easy configuration. You will see that interrogators can be updated through firmware upgrades and you will learn when it is appropriate to upload a new firmware version. Next, I will show you the difference between a "dumb" reader and a "smart" reader as well as the capabilities that a smart reader can provide.

Other forms of mobile interrogators include the following: • RFID modules integrated into cell phones (for example Nokia's NFC phone) • RFID modules in the form of a Personal Computer Memory Card International Association (PCMCIA) card that can be inserted into a laptop or a PC • RFID modules intended for OEM manufacturers Interrogation Zone Performance To achieve the best possible performance of your interrogation zone, you have to consider many aspects related to interrogation zone configuration, the number of tags in the zone, tag performance and velocity, external challenges such as environmental conditions as well as RF noise and interference, and many other issues.

Generation 2 supports two methods of backscatter encoding that tags use to send signals back to the reader. The reader assigns which method the tag should use when responding. These methods, Baseband-FM0 and Miller subcarrier, help with anticollision: • Baseband-FM0 encoding has been used by tags under the ISO standards but it is now supported by Generation 2 as well. This type of encoding is very fast but more susceptible to interference; therefore, it is not usually used in the dense reader mode of operation.

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