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Home » LARGE GSM 3G 2100mhz 1000m2 Mobile Phone Signal Booster

LARGE GSM 3G 2100mhz 1000m2 Mobile Phone Signal Booster

The LARGE GSM BOOSTER 3G Boost 2100MHZ repeater kit (GSB2103G-3) captures and boosts a weak mobile signal through a Hi Gain Yagi antenna and amplifier. Designed to boost coverage for your home, office or building up to 1000 m2 over the 2100 MHz frequency. The LARGE GSM Booster 3G 900Mhz (GSB2103G-3) kit comes complete with everything you need to increase mobile phone signal strength and stop dropped calls. The GSB2103G-1 is simple to install and most effective by placing the external antenna in a loft space or the roof of the property.

All GSM Booster Mobile Phone Signal Boosters Come with technical support and prompt despatch.

Kit Overview

  • GSM 3G 2100 Mhz Networks
  • All UK 3G 2100mhz Mobile Phone Networks
  • All Ireland 3G 2100mhz Mobile Phone Networks
  • Coverage up to 1000 m2
  • Supports up to 15 simultaneous users
  • Works with all Worldwide 2100MHz Mobile Phone Networks
  • Ideal for Mobile Broadband Internet

What’s in the Box

  1. LARGE GSM 3G 2100 Mhz GSB2103G-1 1000m2 Mobile Repeater
  2. High gain external signal antenna
  3. 10 meters of high gain coaxial cable
  4. Indoor high gain antenna
  5. AC/DC main power supply
  6. Installation manual
  7. 30 day money back guarantee
  8. 12 Months Warranty


  • Gain ( dB) Uplink Gp=70, Downlink Gp=75
  • Pass band ripple =5dB
  • Guard band rejection (BW-60dB)=42MHz, (BW-70dB)=45MHz
  • I/O impedance 50O/N connector
  • I/O return loss =-8dB
  • Export power (Po) =10dBm
  • Intermodulation Attenuation: =-40dBc (Po=13dBm)
  • Transmission Delay =0.5µs
  • Ambient temperature -10?~50?
  • Power supply AC110~220V + – 10%
  • Power 12v
  • Power Use < 5 Watts
  • Connector Mode N/K for both in-out antenna socket
  • Size of Mobile Repeater 14cm x 12cm x 3cm

GSM Booster LARGE 3G GSB2103G-1 Mobile Phone Signal Booster Repeater has been designed for the 2100 Mhz 3G Mobile Phone Networks. Boosting mobile phone Calls and 3G UMTS and HSDPA Data services. If you are looking to boost 2G Broadband signal please look at the following products (2g 1000m2 Boosters)


Yagi Antenna 55cm x 14cm x 3cm – Larger directional antenna 8db input. Ideal for rural areas or properties with low input signal