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Cellphone Signal Booster 3G – 300 sqm


1 Band
Coverage: Up to 300 sqm
Ideal for:
Telkom Signal Boosters
850 MHz
Free Shipping In South Africa
Delivery time: 5-7 Business Days
Delivery time: 7-12 Business Days

Benefits and Features:

  • Instant Signal Boost of up to 5 bars
  • CE & RoHS ISO Certified Product
  • Easy Installation
  • Fast Data Download
  • 2 -Year Warranty

The booster is an affordable option for improving cellular signal across greater areas. Covering up to 300 sq m, this model would suit large medium-sized houses, offices, cafes, etc. The model amplifies signal from the Telkom network at 850 MHz, and its energy-efficient AI sends it into standby mode when not in use.

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Free Trackable Delivery In ZA
10 Years In The Mobile Boosters Industry
30-Day Money-Back Guarantee
24/7 Support
Over 8700 Satisfied Customers

R 4600

Units Sold: 150

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Kit includes:

  • 1x repeater
  • 1x outdoor panel antenna
  • 1x indoor antenna
  • 1x power adapter
  • 15 meters cable
  • 5 meters cable
Price Match Guarantee


If you are a Telkom user suffering from poor signal, we have a range of boosters to get you up and running. This model is a wonderful signal booster that repeats the 850 MHz signal band used by Telkom, giving you a solid 5-bar signal every time.

The Telkom installation is a simple, 4-step procedure that takes as little as 15 minutes. The kit comes with everything you need to get connected and use of the booster will not negatively affect your health. Perfectly suited for use across South Africa. Our 24/7 support crew have you covered in the rare instance that you do experience an issue during or after setup. We have no hidden fees and delivery to South Africa is free.


Coverage (sq. m.) Place to use Operator Frequency


Up to 300 sq.m. Medium home

Medium office

Telkom (3G) 850 Repeater and all accessories


Down-link Voltage Size

Weight (booster unit only)

824~ 829MHz

864~ 894 MHz AC/220V±10% 45~55Hz 124*112*12.5 mm. 0.3 kg

Technical Specifications:

Frequency range uplink:824-829MHz Downlink: 869~894MHz Gain Up link: Gp≥51dB Downlink: Gp≥53dB
Output Up link :15dBm Downlink: 17dBm Function a) Power supply LED denote b) Export power LED denote
Port VSWR ≤1.8DB I/O impedance 50Ω/N connector  
Noise figure ≤6dB Transmission delay ≤0.5μs
Ambient temperature -15°C~55°C Power supply AC/220V±10% 45~55Hz
Size/weight 124*112*12.5MM/300g Coverage area Up to 300 sq. m
Led Signal Indication explanation:








DC power problem
  DL (Downlink)


No signal received Solution: Adjust the outdoor installation to get sound signal


Signal received ok but not perfect


Full signal received
  UP (Uplink)  


When there is a call it is normal


Always green means self-excited Solution: Turn off the booster, adjust the indoor and outdoor antenna again and try to expand the distance or create some barriers between them.
    ALA (Alarm system)  


The installation is not correct. For example, the outdoor antenna been stolen the cable is not connected properly There are strong input signals or severe self-oscillation, measures must be Take n(please note that our boosters have auto shut off function so the red color status can only maintain for 5 seconds).


Booster breaks down, or severe self-oscillation leads to auto mute Re-plug in and check if alarm LED turns Red.

Product FAQ:

How can I check if the booster will work for me?

Should I check the location of my network provider’s nearest tower?

How many users will one booster support?

How do I determine the best place to set up my booster?

How It Works:

4.67 out of 5 based on 13 customer ratings
13 customer reviews

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Reviews () Questions ()
  1. Verified Buyer

    5 out of 5

    Awesome product for me

    I'm glad I'd bought this item. If you understand how it's working, then it is for you but if you expect too much don't buy it

  2. Verified Buyer

    4 out of 5

    Great service

    Great customer support - happily took care of a product issue and sent me a replacement quickly!

    • Mobile Signal Boosters

      Dear Taylor,
      Thank you for taking the time to share your valuable review. We're so glad you are satisfied with our service.

  3. Verified Buyer

    5 out of 5

    Thank u for the great service

    This is the 2nd one we bought. The first one went in a metal building that we didn't get any connection before. This one went in the lower level of a house. We are out in the country and couldn't get more than 1 or 2 bars. The connection is great in the metal building and the house.

    • Mobile Signal Boosters

      Dear Reece,
      We're absolutely delighted to hear how happy you are and how much you enjoyed working with us.

  4. Verified Buyer

    5 out of 5

    Good experience

    Quick shipping and a good overall experience on my purchase. Only thing I would change is I would like to see a little more details on the parts and maybe a couple more pics. You can never have too much info. No issues with the device

  5. Verified Buyer

    5 out of 5

    Really good

    I would highly recommend this company and their products. my phone service went from almost nonexistent to full.

  6. Verified Buyer

    4 out of 5

    Gets pretty hot though

    Does its job and boots signal. Gets pretty hot though.