Intermec ITRF91501 Quick Start Manual page 7

The following illustrations are a couple of examples for Reader
installations.
EXAMPLE 1: Shipping Dock Door, showing two antennas at each
shipping door. Two antennas in a crossing pattern
provide angular diversity to improve read capability
when tag orientation is unknown.
WARNING: While the device is on, the operator's body and
parts of the body such as eyes, hands, or head,
must be 23 cm. (9.1 inches) or farther from the
cover of the antenna assembly.
Shipping Door #1
A singular antenna in a portal may be sufficient
in applications where there is a known tag orientation.
ITRF91501 Reader Quick Start Guide
Shipping Door #2
100" Max.
distance
to tag
7