Users Manual

LTE Standard Module Series
EC25 Hardware Design
EC25_Hardware_Design
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Table 29: GNSS Frequency
A reference design of GNSS antenna is shown as below.
Figure 38: Reference Circuit of GNSS Antenna
1. An external LDO can be selected to supply power according to the active antenna requirement.
2.
If the module is designed with a passive antenna, then the VDD circuit is not needed.
Type Frequency Unit
GPS 1575.42±1.023 MHz
GLONASS 1597.5~1605.8 MHz
Galileo 1575.42±2.046 MHz
BeiDou (Compass) 1561.098±2.046 MHz
QZSS 1575.42 MHz
NOTES