Gnss; Gnss Performance; Gnss Design Guidelines - Quectel SC606T Series Hardware Design

5

GNSS

The module integrates a GNSS engine (Gen 8C) which supports multiple positioning and navigation
systems including GPS, GLONASS, and BeiDou. With an embedded LNA, the positioning accuracy of the
module has been significantly improved.

5.1. GNSS Performance

The following table lists the GNSS performance of the module in conduction mode.
Table 29: GNSS Performance
Parameter
Sensitivity (GNSS)
TTFF (GNSS)
Static Drift (GNSS)

5.2. GNSS Design Guidelines

Bad design of antenna signal traces layout may cause reduced GNSS receiving sensitivity, longer GNSS
positioning time, and reduced positioning accuracy. To avoid these, follow the design rules listed below:
⚫
Maximize the distance between the GNSS RF part and the GPRS RF part (including trace routing
and antenna traces layout) to avoid mutual interference.
SC606T_Series_Hardware_Design
Description
Cold start
Reacquisition
Tracking
Cold start
Warm start
Hot start
CEP-50
SC606T Series Hardware Design
Typ. Unit
-145 dBm
-157 dBm
-157 dBm
34.3 s
26.9 s
3.7 s
< 2.5 m
Smart Module Series
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