How to install LTE external antennas on Deco 4G Products
When You Set Up
Updated 04-09-2025 09:02:38 AM84198
This Article Applies to:
Deco X10-4G , Deco X50-4G , Deco X20-4G
Recent updates may have expanded access to feature(s) discussed in this FAQ. Visit your product's support page, select the correct hardware version for your device, and check either the Datasheet or the firmware section for the latest improvements added to your product. Please note that product availability varies by region, and certain models may not be available in your region.
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
FUL_low – FUL_high
FDL_low – FDL_high
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.
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.
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.
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.
Get to know more details of each function and configuration please go to Download Center to download the manual of your product.
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