User's Manual

5.3.2 Locating the Module Close to Human Body
When using the Module in an application where the radio is located close to human body, the human RF exposure must be evaluated.
FCC, IC, and CE all have different standards for evaluating the RF exposure and, because of this, each standard will require a different
minimum separation distance between the Module and human body. Certification of WGM110 allows the following minimum separation
distances without any actions required from the end product manufacturer but the allowed minimum separation distances differ slightly
between the WGM110A and WGM110E versions as indicated in the table below.
Table 5.1. Minimum Allowed Separation Distances for WGM110 A and E Variants
Certification WGM110A WGM110E
FCC 21 mm 21 mm
IC 25 mm 30 mm
CE The RF exposure must be evaluated using
the end product
The RF exposure must be evaluated using
the end product
For FCC and IC, using the Module in end products where the separation distance is smaller than those listed above is allowed but
requires evaluation of the RF exposure in the final assembly and applying for a Class 2 Permissive Change or Change of ID to be
applied to the existing FCC/IC certificates of the Module.
For CE certification, RF exposure must be evaluated using the end product in all cases.
Note: Placing the Module in touch or very close to the human body will have a negative impact on the efficiency of the antenna thus
reducing range.
WGM110 Wizard Gecko Wi-Fi
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Module Data Sheet
Hardware Design Guidelines
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