Product Info

LPWA Module Series

BG95 Series Hardware Design

BG95_Series_Hardware_Design 62 / 106

1. Tracking sensitivity: the minimum GNSS signal power at which the module can maintain lock (keep

positioning for at least 3 minutes continuously).

2. Reacquisition sensitivity: the minimum GNSS signal power required for the module to maintain lock

within 3 minutes after loss of lock.

3. Cold start sensitivity: the minimum GNSS signal power at which the module can fix position

successfully within 3 minutes after executing cold start command.

4.3. Layout Guidelines

The following layout guidelines should be taken into account in application designs.

⚫ Maximize the distance between GNSS antenna and main antenna.

⚫ Digital circuits such as (U)SIM card, USB interface, camera module, display connector and SD card

should be kept away from the antennas.

⚫ Use ground vias around the GNSS trace and sensitive analog signal traces to provide coplanar

isolation and protection.

⚫ Keep 50 Ω characteristic impedance for ANT_GNSS trace.

See Chapter 5 for GNSS antenna reference design and antenna installation information.

Hot start

@ open sky

Autonomous

1.6

XTRA enabled

1.5

Accuracy

(GNSS)

CEP-50

Autonomous

@open sky

< 3

NOTES