# 3G - 300m2 (Telkom) Mobile Signal Booster

##### **Enhance 3G Signal Strength**

  

The 3G - 300m2 Mobile Signal Booster is engineered to elevate your mobile experience by amplifying 3G signals on the 850MHz frequency. Ideal for Telkom users, it dramatically reduces dropped calls and ensures clear, uninterrupted conversations, all while operating seamlessly in spaces up to 300 square meters.

##### **Comprehensive Installation Kit**

  

Enjoy hassle-free installation with our all-inclusive kit, which contains everything from the outdoor aerial to the indoor antenna, cables, booster unit, and power adapter. This thoughtful design means you have all the components you need to boost your signal without any additional purchases.

##### **Wide Coverage Area**

  

Whether you're at home, in a café, or at a club, our signal booster provides reliable 3G service across a large area of up to 300 m². This makes it versatile for different environments, ensuring everyone can enjoy quality connectivity.

##### **Upgrade Options Available**

  

For those seeking enhanced performance, choose our optional upgrades. We offer higher gain antennas and extended external cables to optimize your signal strength and reach, catering to a variety of user needs and environments for an unbeatable 3G experience.

##### **Simultaneous User Support**

  

Our mobile signal booster accommodates up to 30 users simultaneously, making it perfect for busy homes, offices, or communal spaces. Everyone can connect confidently with strong signals, enhancing productivity and enjoyment.

##### **Built-in Safety Features**

  

Protect your investment with our optional lightning surge protector, designed to shield your equipment from potential damage caused by electrical surges. This added security brings peace of mind, allowing you to boost your signals safely.

It boost **3G** signal on 850MHz frequency, the frequency used in **South Africa** used by mobile networks to deliver their mobile services: 3G. It work on 850Mhz (Band 5) frequency can boost Telkom mobile operator for improving **3G** signal. It suitable for medium size, boost indoor signal areas up to **300 m2**, perfect for home, cafes, restaurants, pubs, clubs and more.

* * *

**Wow 3G Calls**  
Eliminates Dropped Calls

**Consistent Connection**  
Reliable 3G Data

**Signal Wider Coverage**  
Reception Up to 300 sq.m.

* * *

  

### Upgrade External Cables

If our standard package 10 meter external cable length is not enough to cover your area you have an upgrade option.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal cables](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Cable.jpg?v=1693125491)

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### Upgrade External Aerial

Higher Gain Yagi Antenna - For better performance it's a must if indoor your phone with 1/2 signal bars. Or get this upgrade if outdoor best signal strength in the following range:  
2G (GSM) -76 to -90 dBm  
3G (UMTS) -80 to -94 dBm  
4G (LTE) -97 to -105 dBm  
How to shown dBm reading on phone? Check [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide)  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal higher gain yagi antenna](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHigherGainYagiAntenna.webp?v=1600640184)

* * *

### Upgrade Protector

Lightning Surge Protector - Designed to Protect your equipment from high amperage surges due to lightning strikes on aerials or masts in close proximity to the device. This unit is rated for 18KA of current surge and is very simple to install on any device.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal surge protector](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageSurgeProtector.webp?v=1600640184)

* * *

  

### Specification

(scroll to view all)

Application & Bands

\[3G Data\] (Band 5)

Country

South Africa

**Boost All On**

Telkom (3G)

Users Supporting

30 Simultaneously

Band

Single Band 5

Frequency

850MHz

Gain(dB)

Uplink Gp≥60; Downlink Gp≥65

Up-link

824~849 MHz

Down-link

869~894 MHz

Export Power(Po)

≥17dBm

Power Adapter

Input: AC 100V~240V 50/60Hz  
Output: DC 5V

Kit Includes

1 x Booster  
1 x Outdoor Antenna  
1 x Indoor Antenna  
1 x Power Adapter  
1 x 10 Meters Outdoor Cable

**Warming Tips:**  
-   Band Confirmation: This booster can boost signals on Band 5, please check the band of your devices firstly.
-   For iPhone: Dial \*3001#12345#\* → Press call button → Click 'Serving Cell Info' → Check 'Freq Band Indicator'.
-   For Android: Download 'LTE Discovery' APP → Click ‘SIGNALS’ → Check 'EARFCN'. More refer to [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide) .
-   External Signal Needed: The signal booster can only amplify signal but can't create signal. If there is no signal outside, it won't work, please make sure you get 1-2 bars signal outside.

### Custom your solution

#### **Expandable coverage by adding indoor antenna if the outside signal is strong.**

  

![UK Mobile Booster Expand Cell Coverage with 3 Indoor Antennas](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Expand-Cell-Coverage-with-3-Indoor-Antenna.png?v=1700361963)

  

### **How It Works**

  

![how 4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHIWhomeoffice-2.webp?v=1650634397)

#### 1

**Receives signal**  
The powerful antenna reaches out to access a voice and 3G, 4G, and LTE data signal, and delivers it to the booster  

#### 2

**Boosts signal**  
The booster receives the signal, amplifies it, and serves as a relay between your phone and the nearest cell tower.  

#### 3

**Broadcasts signal**  
Your devices get increased cell reception, and calls and data are fed through the booster back to the network.  
  

  

#### **Get stronger signal**

  

![how 4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPagenormalcoverage-2.webp?v=1650634397)

#### Normal Cell Coverage

Dropped calls and slow data are generally caused by three things: distance from a cell tower, building materials in your home or office, or obstruction from tall objects such as trees, topography, and buildings.

![how 4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageboostedcoverage-2.webp?v=1650634397)

#### Signal Coverage with our booster

Signal boosters increase cell signal by collecting signals with a powerful antenna, delivering those signals to the booster, amplifying the cell signals so your devices receive them, and delivering your device's boosted signals back to the cell tower.

#### **Installation**

1.  Connect the indoor antenna to the MS port.
2.  Connect the outdoor antenna to the BS Port.
3.  Install the outdoor antenna and keep a minimum vertical distance of 10 meters from the indoor antenna.
4.  Point the outdoor antenna to the direction where you know there is possibly a higher signal strength from the base station.
5.  Power on the booster and check the signal strength.
6.  Adjust the outdoor antenna until you get the best signal strength.

**IMPORTANT NOTE**:  
DO NOT POWER ON THE DEVICE UNTIL YOU HAVE COMPLETED THIS SETUP.

Read more about [User Manual Documentation.](https://drive.google.com/file/d/1Uch5legGJsKTzLO9PTGpgsKEnZGEq7TH/view)

![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal signal coverage](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Coverage.jpg?v=1698191834)

  

### **Application Scenarios**

  

![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal home application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-home.png?v=1697980834)  
**Home**

![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal office application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-office.png?v=1697980832)  
**Office**

![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal garage application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-garage.png?v=1697980834)  
**Garage**

![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal metal buildings application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-metal-buildings.png?v=1697980834)  
**Metal Buildings**

1.  What is a mobile signal booster? - A mobile signal booster is a device that improves your phone's reception by taking weak signals from outside and amplifying them inside your home or workplace. This way, you can make calls and use the internet more easily without interruptions.
2.  How does the 3G - 300m2 (Telkom) Mobile Signal Booster work? - The 3G - 300m2 Mobile Signal Booster works by capturing the weak 3G signals from outside at 850MHz frequency and making them stronger. It can cover areas up to 300 square meters, ensuring that you get better phone service in your home, office, or other spaces.
3.  Who can benefit from using this booster? - If you often experience weak mobile signals at home or work, or if you want a better connection at places like cafes, pubs, or clubs, this booster can help. It’s useful for families, businesses, and anyone who relies on mobile data.
4.  Can this booster help if there is no signal outside? - No, the mobile signal booster can only make weak signals stronger. If there is no signal outside at all, the booster will not be able to work.
5.  How easy is it to install the mobile signal booster? - Installing the mobile signal booster is pretty simple! You just need to place the outdoor antenna where there is good reception, run a cable to the indoor booster, and set up the indoor antenna. A loose installation first helps find the best spots.
6.  What comes in the box with the booster? - When you buy the 3G - 300m2 Mobile Signal Booster, you get everything you need: an outdoor antenna, an indoor antenna, a booster unit, cables, and a power adapter. It's all included for an easy setup!
7.  Is there any special equipment needed to use the booster? - No special equipment is needed aside from what's included in the kit. You’ll just need an AC power outlet to plug in the booster.
8.  Can multiple people use the mobile signal booster at the same time? - Yes! The 3G - 300m2 Mobile Signal Booster can support up to 30 users at the same time, so your family or colleagues can all enjoy better phone connections.
9.  What if I need longer cables for installation? - If the standard 10-meter cable isn’t enough for your installation, you can upgrade to longer cables, giving you more flexibility on where to place your antennas.
10.  How can I check if my phone supports the required frequency? - To check if your phone works with the booster, you can dial \*3001#12345# and look for the 'Freq Band Indicator' in the 'Serving Cell Info' section, or use an app like 'CellMapper' or 'Network Signal Info Pro'.

TAGES: 3G mobile signal booster, Telkom signal booster, mobile signal amplification, South Africa cell signal booster, indoor signal booster, 300m2 booster, cellular reception improvement, reliable 3G data connection

## Details

- **Price:** 183.82 GBP - 303.82 GBP
- **Vendor:** UKMobileBooster.com
- **Type:** South Africa
- **Tags:** application 3G Data, coverage up to 300 sq metres, frequency 850MHz, provider Telkom, za za

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| No / No / No | 183.82 GBP | In stock |
| No / No / Yes | 203.82 GBP | In stock |
| No / Yes / No | 233.82 GBP | In stock |
| No / Yes / Yes | 253.82 GBP | In stock |
| 20 M / No / No | 203.82 GBP | In stock |
| 20 M / No / Yes | 223.82 GBP | In stock |
| 20 M / Yes / No | 253.82 GBP | In stock |
| 20 M / Yes / Yes | 273.82 GBP | In stock |
| 30 M / No / No | 213.82 GBP | In stock |
| 30 M / No / Yes | 233.82 GBP | In stock |
| 30 M / Yes / No | 263.82 GBP | In stock |
| 30 M / Yes / Yes | 283.82 GBP | In stock |
| 40 M / No / No | 223.82 GBP | In stock |
| 40 M / No / Yes | 243.82 GBP | In stock |
| 40 M / Yes / No | 273.82 GBP | In stock |
| 40 M / Yes / Yes | 293.82 GBP | In stock |
| 50 M / No / No | 233.82 GBP | In stock |
| 50 M / No / Yes | 253.82 GBP | In stock |
| 50 M / Yes / No | 283.82 GBP | In stock |
| 50 M / Yes / Yes | 303.82 GBP | In stock |

## Images

- 3G - 300m2 (Telkom) Mobile Signal Booster
- 3G - 300m2 (Telkom) Mobile Signal Booster
- 3G - 300m2 (Telkom) Mobile Signal Booster
- 3G - 300m2 (Telkom) Mobile Signal Booster
- 3G - 300m2 (Telkom) Mobile Signal Booster
- 3G - 300m2 (Telkom) Mobile Signal Booster
- 3G - 300m2 (Telkom) Mobile Signal Booster
- 3G - 300m2 (Telkom) Mobile Signal Booster
- 3G - 300m2 (Telkom) Mobile Signal Booster

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> Source: [B4U](https://www.ukmobilebooster.com/products/za-t300-mobile-booster)
> Updated: 2026-09-02
