Users Manual

Smart Module Series

SC200R Series Hardware Design

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Table 41: GNSS Frequency

SC200R-WF does not support GNSS.

6.3.1. Recommended Circuit for Passive Antenna

GNSS antenna interface supports passive ceramic antennas and other types of passive antennas. A

reference circuit design is given below.

Figure 31: Reference Circuit Design for GNSS Passive Antenna

When the passive antenna is placed far away from the module (that is, the antenna trace is long) and the

external loss is more than 2 dB, it is recommended to add an external LNA circuit for better GNSS

receiving performance, and place the LNA close to the antenna.

Type Frequency Unit

GPS 1575.42 ±1.023 MHz

GLONASS 1597.5–1605.8 MHz

BeiDou 1561.098 ±2.046 MHz

Galileo 1575.42 ±1.023 MHz

NOTE