Installation Manual

MN003109A01_aa

Standard Configurations RFID (Option) 2-39

2.7.1 RFID Reading

To read an RFID tag using a UHF Gen 2 RFID reader (e.g. Motorola’s MC9090-G), open an

appropriate RFID read application, point the RFID reader at the tag and activate the reader's RFID

antenna (e.g. pull Motorola’s MC9090-G scanning trigger). RFID reader must be within 1 foot from

tag in order to read.

Two variables, Read Angle and Reader Orientation, aid in the distance needed to read and write to

the RFID Tag. Read distance is independent of Tag Angle, but the reader should be as close to

perpendicular to the tag as possible (Read Angle).

As Read Angle increases past 60 degrees, read distance will begin to decrease; tag will become

unreadable once Read Angle exceeds 90 degrees (see Figure 2-45). RFID tag cannot be read

through metal. The orientation of the reader (Reader Orientation) and the tag must be aligned to

improve read and writability (see Figure 2-47).

Figure 2-45. Read Angle for Mid Power Radio

Figure 2-46. Tag Angle for Mid Power Radio

Read Angle

RFID Tag

Tag Angle

Draft

Read Angle for Mid Power d Angle for Mid Power

Dra

RFID TRFID T

aft