How to install LTE external antennas on Deco 4G Products

NOTE: Both external antennas must be installed to ensure the Deco's LTE network operates properly, providing optimal performance and stable connectivity.

When working in 3G/4G Router mode, you can install LTE external antennas (not included in the product package) manually to strengthen the LTE signals of your Deco.

Before You Start

Ensure the external antennas support the working frequencies listed below:

E-UTRA Operating Band	Uplink (UL) operating band BS receive UE transmit	Downlink (DL) operating band BS transmit UE receive	Duplex Mode
E-UTRA Operating Band	FUL_low – FUL_high	FDL_low – FDL_high	Duplex Mode
1	1920 MHz–1980 MHz	2110 MHz –2170 MHz	FDD
3	1710 MHz–1785 MHz	1805 MHz–1880 MHz	FDD
5	824 MHz–849 MHz	869MHz–894MHz	FDD
7	2500MHz–2570 MHz	2620 MHz–2690 MHz	FDD
8	880 MHz–915 MHz	925 MHz–960 MHz	FDD
20	832 MHz–862 MHz	791 MHz–821 MHz	FDD
28	703 MHz–748 MHz	758 MHz–803 MHz	FDD
38	2570MHz–2620 MHz	2570MHz–2620 MHz	TDD
40	2300 MHz –2400 MHz	2300 MHz–2400 MHz	TDD
41	2550 MHz –2650 MHz	2550 MHz–2650 MHz	TDD

Two SMB to SMA adapters are provided in your Deco product package. Make sure your antennas have the same connector type (SMA Male).
Ensure your Deco is working in 3G/4G Router Mode. If not, open the Deco app and go to More > Advanced > Operation Mode to switch the mode.

Deco app’s "More" menu, showing options like Deco Lab, Reports, SMS, Wi-Fi Settings, Guest Network, WPS, Internet, QoS, Block List, Data Settings, Network Optimization, and Advanced. Deco app’s 'Advanced' settings menu, displaying various options such as Operation Mode, IPTV/VLAN, MAC Clone, DDNS, 3/4G Backup, LAN IP, DHCP Server, Address Reservation, Fast Roaming (Disabled), Beamforming (Enabled). The operation mode page. The modes include 3G/4G Router (default selection), Wi-Fi Router, and Access Point.

Follow the steps below to install your external antennas; here, we take Deco X20-4G as an example:

1. Remove the cover on the back of your Deco X20-4G.

Remove the antenna cover on the back of Deco

2. Insert the provided SMB to SMA adapters to the External antenna ports, and then connect both of your LTE external antennas to the adapters.

Note: The image of antennas is for reference only and may differ from actual products. We cannot guarantee the performance while using any third-party LTE external antennas.

Connect external antennas to the antenna ports of Deco

3. Open the Deco app, go to More > External Antennas, and enable External Antennas. When enabled, the Deco will use the external antennas instead of the internal ones.

Deco app's "More" menu, showing options like the Internet, QoS, Block List, Advanced, Connection Alerts, Managers, LED Control, External Antennas (highlighted), and System. Deco app’s "External Antennas" page, showing options to turn on or turn off.

Get to know more details of each function and configuration please go to Download Center to download the manual of your product.

How to install LTE external antennas on Deco 4G Products

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