Confidential and Proprietary
Monarch Go-GPS-BLE Datasheet and Hardware Integration Guide, Rev 1
18/28
The dimension of the M.2 screws are given in document “NDA-Monarch Go-Mechanical drawing-
2d-Screw-M2X4-Model_A2.1.pdf
”. The screws are shipped with Monarch Go-GPS .
The footprint of the connector 54167-0208 is given in Molex datasheet available from their web
site.
Note
: customer can add anti vibration thread locking adhesive to the 2 screws for higher
resistance to vibration.
Warning:
In order to get optimal antenna performance, no metal plate shall be located above Monarch
Go-GPS BLE embedded LTE antenna as described on this figure:
2.3.2.
Placement with flex cable
The optional flex cable can be used between the connector of the Host Board and the connector of
Monarch Go-GPS BLE, allowing positioning Monarch Go-GPS BLE away of the host board.
The position of the connector on the Host Board does not have to follow the guidance of section
2.2.1 when the flex cable is used, it gives more flexibility in Host Board design.
In order to get optimal antenna performance, the design shall follow below guidelines:
It is recommended to solder the nuts to a large PCB with ground plane
If this is not possible, the nuts shall be soldered to wires connected to ground. The objective is to
improve grounding connection between Monarch Go-GPS BLE PCB and an external ground
plane, for optimal antenna performance.
The best position of Monarch Go-GPS BLE device into the end product can be estimated by
using AT command AT+CSQ that reports signal strength. The position with lowest value (highest
signal strength) is the best one.
Warning:
In order to get optimal antenna performance, no metal plate shall be located above Monarch
Go-GPS BLE embedded LTE antenna as described on this figure:
2.4.
Functional testing
Once Monarch Go-GPS BLE is correctly assembled to the Host Board, AT command interface through
physical UART connected to external MCU or Bluetooth radio interface can be used for functional testing.
S
ending AT command “ATI1” to UART1 will return Monarch Go-GPS BLE software version:
