User's Manual

User Guide
WherePort III User Guide D948 Rev B
©2010 Zebra Enterprise Solutions. WherePort and all product names and numbers are Zebra Enterprise Solutions trademarks. All oth
e
Figure 11 Orientation
When the coil in the tag and the port are parallel the range is the
greatest. When the coils are perpendicular the range is the
shortest.
The relative positions of the two coils, WherePort transmitting and WhereTag receiving,
determine the range in which the tag will receive the signal. This range is the coverage
area, or guaranteed capture area (Figure 12). The guaranteed capture area is different for
each orientation of the tag and the power level of the WherePort.
Figure 12 Capture Area
The capture area is shown by the dark shaded area. This shape
varies with the orientation of the tag and the power level of the
WherePort. The lightly shaded area is the uncertainty area.
Tag Orientation 2
Parallel Coils
Perpendicular
Coils
Guaranteed
Capture Area
Uncertainty Area