Product Info

Open-Q 865 SOM_Module_Certification_TechNote89_OEM_Integrator_Guide

Rev. 1.3

Lantronix

6. ANTENNA PLACEMENT AND RF SAFETY

The FCC and other countries’ regulatory bodies impose strict conditions and limitations on

the RF exposure levels of end products. Acceptable RF exposure levels for this Module

depend on transmit power, the location of the transmitting antenna(s) inside the host system

and the expected separation of the transmitting antennas to the end user. OEM integrators

must take great care to ensure each host system complies with the applicable RF exposure

requirements.

The antenna-to-user (bystander) separation distance must be greater than 20 cm and for FCC

greater than 21 cm for ISED.

Failure to adhere to these separation/spacing rules will invalidate the FCC and IC

certifications for the Module.

 This separation is measured between the closest point of each transmitting antenna

inside the host device to the point of contact by the user or nearby person outside the

host device.

 The transmitting antenna cables shall be positioned away from the antenna elements

to conform to the configuration tested for compliance.

 When transmitting antennas are installed in the display section of a device, the

display section shall not have metallic components and material that can influence or

change the operating and RF exposure characteristics of the antennas.

 The separation between the main and aux antennas must be at least 3 cm.

 The transmitter module may not be co-located with any other transmitter or antenna.

 SAR evaluation is required if a separation distance of less than or equal to 20cm

between the user or bystanders and the device antenna cannot always be maintained.

For ISED, bystander SAR evaluation is always required for antenna installation in

laptop screens per RSS-102 (SPR)-001.

Where one or more of the conditions above cannot be met for a particular host system,

additional testing is required to secure the necessary certifications for the system.

Note: These restrictions do not apply to receive-only antenna.

7. SIMULTANEOUS TRANSMISSION WITH OTHER INTEGRATED

OR PLUG-IN RADIOS

The FCC and IC impose conditions and limitations when additional radio(s) are co-located

in the same host system as the Module with capability to transmit simultaneously. Co-

locating other radios such as an integrated or plug in Wireless WAN/cellular radio with the

Module requires additional evaluation and possibly submission for authorization from the

FCC and IC.