Open-Q™ 820 (APQ8096) / 820Pro (APQ8096SG) µSOM Development Kit User Guide Version 1.4
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Copyright Intrinsyc Technologies Corporation
3.7.4 µSOM RF Specification for WIFI, BT, GPS
The µSOM includes the following radio interfaces:
o
Wi-Fi + BT: ANT1
o
Wi-Fi only: ANT2
o
WGR7640: For GPS RF Front end
Antenna 1
: Antenna 1 is used for providing Wi-Fi and Bluetooth connectivity to QCA6174.
This antenna is meant to be connected to the carrier board via a coaxial cable. The function
of this connector is for extending the dual band capabilities of the Wi-Fi chip; therefore,
enabling this antenna to be used simultaneously with Antenna 2. For example, Antenna 2
can be connected to 2.4GHz while Antenna 1 can be connected to 5.1 GHz. To turn on
Bluetooth, only Antenna 1 can be used.
Antenna 2
: Antenna 2 provides Wi-Fi connectivity for QCA6174. This antenna connector is
meant to be connected to the carrier board PCB antenna via a coaxial cable. ANT2 is a
standard dual band antenna from 2.4 GHz to 5.1 GHz.
The µSOM WiFi/BT module has received regulatory certifications (see FCC ID: 2AFDI-
ITCNFA324 for details). Please note that the on-board PCB antennas were not the
antennas used for the µSOM WiFi/BT module certification. Refer to the certification
documents for the WiFi/ BT module (see R-4) for information regarding the test
configurations used for certification. Deviating from the documented configuration may
trigger the need for re-certification.
For details on connecting the WiFi module to the on-board PCB antennas on the carrier
board, refer to section 3.8.13 below.
WGR7640
: GPS Front End WGR7640 is the primary GPS radio interface used on the
Open-Q 820 µSOM development kit. This provides the RF capabilities for GNSS functions.
It has both digital and RF interfaces. Digital interface is required for configuration and status
of the APQ8096 baseband processor.
The following are the operating frequencies for WGR7640
GPS: 1574.42 MHz – 1576.42 MHz
GLONASS: 1598 MHz to 1606 MHz
