Open-Q 2100 Development Kit
Open-Q™ 2100 Dev Kit User Guide
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3.8.4 SOM RF Specification for WIFI, BT, GNSS
The SOM includes the following radio interfaces:
o
Wi-Fi + BT: Antenna 1
o
GNSS: Antenna 2
Antenna 1
: Antenna 1 is used for providing Wi-Fi and Bluetooth connectivity to WCN3620. This antenna is
meant to be connected to the carrier board via a coaxial cable or to an external antenna. The WCN3620
requires an antenna to be connected here for correct operation.
For details on connecting the Wi-Fi module to the on-board PCB antennas on the carrier board, refer to
section 3.9.11 below.
Antenna 2:
Antenna 2 is for the GNSS receiver. This antenna is meant to be connected to the carrier board
via a coaxial cable or to an external antenna. The carrier board includes a GNSS PCB antenna and option to
use an external GNSS antenna via SMA connector. A passive or an active antenna may be used and a 2.7V
bias is provided on the antenna input for powering an active antenna.
The operating frequencies for WGR7640 are:
GPS: 1574.42 MHz – 1576.42 MHz
GLONASS: 1598 MHz to 1606 MHz
Antenna 1
Antenna 2
Figure 6 Open-Q 2100 SOM Antenna locations
