Product Info

LTE Standard Module Series
EC21 Mini PCIe Hardware Design
EC21_Mini_PCIe_Hardware_Design 37 / 64
5 Antenna Connection
EC21 Mini PCIe is mounted with three antenna connectors for external antenna connection: a main
antenna connector, an Rx-diversity antenna connector, and a GNSS antenna connector. And Rx-diversity
function is enabled by default. The impedance of the antenna connectors is 50Ω.
5.1. Operating Frequency
The following table shows the operating frequencies of EC21 Mini PCIe.
Table 15: Operating Frequencies
3GPP Band Transmit Receive Unit
GSM850 824~849 869~894 MHz
EGSM900 880~915 925~960 MHz
DCS1800 1710~1785 1805~1880 MHz
PCS1900 1850~1910 1930~1990 MHz
WCDMA B1 1920~1980 2110~2170 MHz
WCDMA B2 1850~1910 1930~1990 MHz
WCDMA B4 1710~1755 2110~2155 MHz
WCDMA B5 824~849 869~894 MHz
WCDMA B8 880~915 925~960 MHz
LTE-FDD B1 1920~1980 2110~2170 MHz
LTE-FDD B2 1850~1910 1930~1990 MHz
LTE-FDD B3 1710~1785 1805~1880 MHz
LTE-FDD B4 1710~1755 2110~2155 MHz