User Guide
Table Of Contents
- Contacts
- Revision History
- 1 Introduction
- 2 Applicable Module
- 3 Additional Regulatory Conformance Testing and/or Submissions Required by the Integrator
- 4 Compliant/Allowable Tx Power Settings
- 5 Allowable Antennas to use with the Radio Module
- 6 Antenna Placement and RF Safety
- 7 Simultaneous Transmission with other Integrated or Plug-in Radios
- 8 Module May Not Be Installed by End Users
- 9 Required Labeling on the Outside of the Host
- 10 Required Labeling on the Module
- 11 Required Regulatory Wording for End User Manual / Installation Manual
- 12 OEM Integrator Checklist
6: Antenna Placement and RF Safety
Open-Q 845 uSOM Module Certification OEM Integrator
Guide
10
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 a minimum of 21 cm for FCC and a
minimum of 24 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.