Name: Fibocom L850-GL Series
Brand: Fibocom
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FIBOCOM L850-GL Series Hardware Guide Page 44 of 59

4 Radio Frequency

4.1 RF Interface

4.1.1 RF Interface Functionality

The L850 module supports two RF connectors used for external antenna connection. As the Figure 4-1

shows, “M” is for Main antenna, which is used to receive and transmit RF signal; “D/G” is for Diversity

antenna, which is used to receive the diversity RF and GNSS signals.

Figure 4-1 RF connectors

4.1.2 RF Connector Characteristic

Rated Condition Environment Condition

Frequency Range DC~6GHz

Temperature Range: –40°C~+85°C

Characteristic Impedance 50Ω

4.1.3 RF Connector Dimension

L850 module uses standard M.2 RF connectors. The RF connector part number is 818004607

manufactured by ECT Corporation, and the size is 2×2×0.6mm. The connector dimension is shown as

following picture:

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Fibocom L850-GL Series Specifications

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