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Due To COVID-19, we cannot guarantee next day delivery. Though we endeavor to do our best but delays may happen due to delays with courier services.

Signal Repeater Kit for Voice, 3G & 4G LTE - SD-BIG-LG Booster for Outdoors (800MHz / 900MHz / 2100MHz)

Signal Repeater Kit for Voice, 3G & 4G LTE - SD-BIG-LG Booster for Outdoors (800MHz / 900MHz / 2100MHz)

Trace Price Available

You can order this for a volume discount from our Trade Website

Supported Frequency

4G (LTE)800MHz



The SD-BIG-LG Signal Booster can be used to improve your signal reception for GSM Voice Call, 3G-2100MHz and 4G LTE 1800MHz frequency bands. It works on all major Irish Mobile Operators like; Three, Meteor, Vodafone, Tesco, EIR and all operators in Europe, and the rest of the world. It is ComReg approved, and this means that - it is safe and legal-to-use it in Ireland. It won't cause any signal interference with mobile network towers/mast.

This remarkable device is perfect for large installation, where you'd want to cover a huge outdoor area, like a small community/town in a valley, quarry, open-pit mines, or wide underground spaces like tunnels and the like.

NOTE: The SD-BIG-LG BigBoost must be used with the StellaDoradus Triple-Band Repeater System. Please don't hesitate to contact us if you have enquiries or clarifications regarding this product.

Reference Image: Installation Overview for the SD-BIG-LG LTE and Voice Call Signal Repeater
Reference Image: StellaDoradus SD-BIG-LG  Repeater Installation Overview - Showing how the repeater system were set up to cover a large open area.

Technical Specification

The SD-BIG-LG is an outstanding device that can boost signal in large outdoor areas. It is designed and made for voice call, 3G and 4G LTE-800MHz frequency bands.

Please read below for full technical specifications of this signal booster.

* Automatically adjusts during installation. Thereafter, automatically adjusts for seasonal variation in pathloss between Base station and Outdoor Antenna.

** The uplink amplifiers switch off when the repeater is not in use, thus reducing the uplink noise to almost zero. When the repeater is in use (eg phone call being made), the uplink amplifier switches on for the duration of the call and a blue LED switches on indicating this is the case.

Note: Specifications subject to change without notice.

Repeater Specification
Frequency Bands (Mhz) (791 - 862MHz) + (880-960MHz)
Range (depends on received signal) ~3Km
Number of People unlimited
Gain Uplink Gp > 20dB
Downlink Gp> 20dB
Pass Band Riple < 4dB
I/O Impedance 50 ohm/N connector
Max uplink/downlink signal strength 0dBm / 18dBm
Ambient Temperature -30 o C to +70 o C
Power Supply Input 110 - 240V AC
Power Supply Output 12v DC
Oscillation Control Automatic
Level Control Automatic*
Uplink Switch Off Yes**
AGC Range 30db
Surge Protection SMA connectors DC grounded, 12V DC port MOV protected
Antenna Specification: Indoor / Outdoor Antenna
Nominal Gain 6.4dBi / 9.4dBi
3dB Beam Pattern 60° x 60°
Bandwidth 790-960MHz + 1710-2700MHz
VSWR <1.4
Front to Back Ratio > 20dB
Polarization Vertical
Power Rating 50W
Impedance 50-OHM
Termination SMA Male
Cross Pol. Discrimination -20dB
Dimensions 210 x 180 x 43mm
Weight 0.68kg
Wind Velocity 126km/hr
Working Temperature -40 o C to +65 o C
Power Supply Specification
AC 100-240V, 50-60Hz
DC 12V, 1A
Typical Power Usage 12W
Mechanical Specification
Length 32cm
Width 19cm
Depth 23.5cm
Weight 1Kg
Mounting 4 x 5mm holes for mounting

Where To Buy This Tri-Band Booster?

You can buy the SD-BIG-LG mobile signal booster for huge outdoor areas, by simply adding it to your cart and going through the secure and fast checkout process. You can pay using any credit cards supported by Stripe Payment Gateway.

You can also call us to order using this number - +353 022 23440.

How Will My Order Be Delivered?

All orders are shipped via express delivery and are normally delivered within 1-4 business days. Your order will be dispatched directly from our warehouse and you will be provided a tracking information for your order, after it is dispatched. If you have any questions on your order status, please contact us.

Also check on the XPOL-2-V3-5G Antenna product page. It could be an alternative solution in boosting weak signal in your home or small office. It's perfect for 4G (LTE) and 5G modem/router with two (2) external antenna connector via SMA port. To name a few compatible routers; Huawei 5G CPE Pro, Huawei B525, Huawei E5186, TP-LINK MR6400, TP-Link Archer MR200, Teltonika RUT240, Teltonika RUT950/RUT955, and Tenda 4G680V2.0.

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Shortlink: https://bit.ly/2XKdS5c

  • Brand: StellaDoradus
  • Product Code: SD-BIG-LG
  • Availability: In Stock
  • €1,550.00
  • Ex Tax: €1,260.16

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NOTE 3: Due To COVID-19, we cannot guarantee next day delivery. Though we endeavor to do our best but delays may happen due to delays with Stock and Courier Services.

Nationwide Shipping

All items ships from Cork Warehouse (unless explicitly specified). Shipping fees applies.

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Tags: signal boosters, signal repeaters for large area, gsm, 3g, 4g