Standards; Antenna Installation - Motorola W24 Technical Information

Motorola wi-fi module developer's guide
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Standards

Important:
Important:

Antenna Installation

A minimum separation distance of 8 inches (20 centimeters) must be maintained between the
antenna and all persons.
When using G24 module: The combined cable loss and antenna gain must not exceed +7.5
dBi (850MHz band). The combined cable loss and antenna gain must not exceed +2.5 dBi
and total system output must not exceed 2.0W EIRP in the PCS (1900) band in order to
comply with the EIRP limit of 24.232 (b). OEM installers must be provided with antenna
installation instruction and transmitter operating conditions for satisfying RF exposure
compliance.
When using W24 module for meeting FCC - the combined cable loss and antenna gain must
not exceed 6 dBi (2400 MHz Band) and the total system output must not exceed 1.0W peak
output power 15.247(b) Or/and for meeting the EN 300 328 standard - Maximum EIRP
spectral density 10 dBm/MHz. The combined cable loss and antenna gain must not exceed
3 dBi.
Section 15.203 - Antenna Requirement
An intentional radiator shall be designed to ensure that no antenna other than that furnished by the
responsible party shall be used with the device. The use of a permanently attached antenna or of
an antenna that uses a unique coupling to the intentional radiator shall be considered sufficient to
comply with the provisions of this Section. The manufacturer may design the unit so that a
broken antenna can be replaced by the user, but the use of a standard antenna jack or electrical
connector is prohibited. This requirement does not apply to carrier current devices or to devices
operated under the provisions of Sections 15.211, 15.213, 15.217, 15.219, or 15.221. Further, this
requirement does not apply to intentional radiators that must be professionally installed, such as
perimeter protection systems and some field disturbance sensors, or to other intentional radiators
which, in accordance with Section 15.31(d), must be measured at the installation site. However,
the installer shall be responsible for ensuring that the proper antenna is employed so that the
limits in this Part are not exceeded.
Standards
FCC_47cfr15.247
FCC_47cfr15.209 & 15cfr15.205 (radiated spurious emission restricted band)
EN_300 328
IEEE Std 802.11b
IEEE Std 802.11g
x
The unit must be installed in a manner that provides a minimum separation distance
of 8 inches (20 centimeters) or more between the antenna and persons and must not
be co-located or operate in conjunction with any other antenna or transmitter in
order to satisfy FCC RF exposure requirements for mobile transmitting devices.
To comply with the FCC RF exposure limits and to satisfy the categorical exclusion
requirements for mobile transmitters, the requirements described in the following
section,
"Antenna Installation"
Module Hardware Description
, must be met.
May 31, 2008

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