Signal Booster – 900/1800MHz – 5,000 SQM – 200 Users

R 21,200.00

  • Coverage up to 5000 sq m
  • All GSM Voice Networks
  • Simple Installation

100 in stock

Cable Upgrade

+ R 950.00
+ R 850.00
+ R 450.00
+ R 3,995.00

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Our PowerMAX 900/1800 XT+ Booster kit is an ideal booster for clients seeking a signal boost for voice calls and text in a very large area, such as an office building floor, large home, restaurant or diner, conference room, etc. It is for clients using any carrier that supports GSM900 and GSM1800 (900MHz and 1800MHz) Voice. These include Cell C, Vodacom, Telkom, and MTN.

This PowerMAX 900/1800 XT+ Booster works on GSM900 at 900MHz and GSM1800 at 1800MHz frequencies. These are the typical GSM frequencies for 2G (voice and text) in South Africa. It is one of the best options for corporate clients, as it operates on most South African telephone carrier networks and supports a vast number of users. The PowerMAX 900/1800 XT+ coverage goes up to 5000 square metres, allowing a widely spread, high power signal that reaches your entire office, conference room, restaurant, etc. and supports up to 200 users at the same time! This PowerMAX 900/1800 XT+ was created to boost your GSM voice for all supporting South African networks.

Your PowerMAX 900/1800 XT+ Booster kit covers:

  • GSM Voice and Text – 900MHz and 1800MHz

  • Cell C – Vodacom – Telkom – MTN

  • Covers up to 5000 square metres

  • Up to 200 Simultaneous Users


This PowerMAX 900/1800 XT+ Booster can focus in on boosting two specific frequencies (in this case it is 900MHz and 1800MHz) and provides you with very good signal in places you would not have it without the installation of this repeater. Our booster works best when it is positioned where you get the strongest signal around your building, and is pointed in the direction said signal is highest; since it will be able to pick up even the slightest bit of frequency and send it through the PowerMAX XT+ booster system by means of the coaxial cables.

Mobile Repeater likes to make it easy for you to install the repeater yourself with the easy-to-follow installation instruction manual that comes with your every purchase!


The PowerMAX 900/1800 XT+ booster kit comes with: 

  • PowerMAX XT+ GSM 900/1800MHz Booster
  •  External Aerial Antenna
  •  Indoor Rubber Whip Rebroadcast Aerial Antenna
  •  10-meter Coaxial Cable
  •  AC/DC Power Source Cables
  •  Installation Manual


When you set up the repeater in the desired building, the 2G (GSM voice and text) reception inside your building will be significantly boosted; sometimes up to 200% in seconds! Additionally, Mobile Repeater wants to help out in any ways possible, so we offer you 100% free technical assistance throughout and after the whole installation process, so please don’t hesitate to contact us at any time!

We are aware that there is quite a bit of competition in our area of the market, but since we have been developing our PowerMAX 900/1800 XT+ boosters for over 10 years, we have the professional development needed to provide you with the best cellphone signal coverage and customer care experience.

We believe in the power and superiority of our products, and their ability to boost the GSM reception that is around your building; so much so that we offer all clients a 15-day money back guarantee with every purchase, and love to give them the perk of free shipping. Likewise, all government and corporate establishments have the opportunity to pay after 30 days with their PowerMAX 900/1800 XT+ Booster!

Mobile Repeater enjoys keeping our booster kit simple and highly functional, which is why it is so easy to install yourself! The PowerMAX 900/1800 XT+ Booster, like all of our repeaters, is composed of 4 major parts:

External Aerial Antenna: The exterior aerial antenna is essential to the repeater’s functionality because it’s the external high power antenna that receives any GSM signal you have outside your building, and sends it through the PowerMAX XT+ Booster system.

Coaxial Cable: The coaxial cable is a 10 metre long cable that is built to transfer the cell signal from the external aerial antenna to the indoor PowerMAX XT+ system at high speeds. You can find extra cables in our Accessory Tab if you need longer versions of this one.

Indoor PowerMAX 900/1800 XT+ Booster: This is the device that obtains the signals from the exterior Aerial antenna by means of the system’s coaxial cables, and amplifies the signal throughout the inside your building and makes it up to 200% stronger than earlier.

Indoor Rubber Whip Rebroadcast Antenna: This is the part which acts like a second antenna indoors, but instead of receiving exterior signal, it obtains signal from the indoor XT+ booster box, through the coaxial cables, and rebroadcasts it inside your facility, as a wifi modem would, except with your GSM signal.


Mechanical Specifications



RF Connector



Heatsink convection cooling

Dimensions (DxWxH)

194 x 234 x 30 mm


1620 Gram

Environment Conditions

IP 40


< 90%

Operating Temperature

-10C – 60C


 Electrical Specifications




Frequency (GSM900)

Frequency (GSM1800)





Maximum Gain

> 50dB

> 50dB

Ripple in Band

> 5dB

> 5dB

Max. Input Power without damage

e – 50 dBm

e – 50 dBm

Output Power

> 17 dBm

> 17 dBm

Spurious Emission (9KHz-1GHz)

> -36dBm

> -36dBm

Spurious Emission (1GHz-12.75GHz)

> -30dBm

> -30dBm

Noise Figure @ Max. Gain

< 6dB (Typical)

< 6dB (Typical)

Return Loss

< 3dB

< 3dB

Time Delay

< 0.5μs

< 0.5μs


> 50000hours

> 50000hours

Power Supply

DC 12V 2A

DC 12V 2A

Power Consumption

< 10 Watt

< 10 Watt


50 ohm

50 ohm

Additional information

Weight 0.01 kg


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