# 4G LTE - 300m2 (Alcom) Mobile Signal Booster

##### **Broad Coverage**

  

Experience enhanced connectivity with the 4G LTE - 300m2 (Alcom) Mobile Signal Booster, designed to boost indoor signal coverage for areas up to 300 square meters. Perfect for homes, cafes, restaurants, and more, ensuring everyone stays connected.

##### **Clear Voice Calls**

  

Never miss an important call again! Our signal booster enhances voice clarity and significantly reduces dropped calls, making communication seamless even in low reception areas.

##### **Faster Internet Speeds**

  

Enjoy lightning-fast uploads and downloads with consistent 4G/LTE connectivity. The booster optimizes your internet speed, allowing you to stream, browse, and download without interruption.

##### **Easy Installation**

  

Setup your signal booster effortlessly! The kit includes all necessary components—outdoor aerial, cables, indoor antenna, and power adapter—for a straightforward installation process, giving you instant results.

##### **Support for Multiple Users**

  

Support up to 30 users simultaneously, making it ideal for shared spaces or households with multiple devices. Everyone can stay connected without compromising on speed or quality.

##### **Customizable Options**

  

Tailor your setup with our upgrade options! Choose longer cables, higher gain antennas, or protective equipment to enhance performance and ensure optimal operation in various conditions.

It boost **4G LTE** signal on 1800MHz frequency, the frequency used in **Finland** used by mobile networks to deliver their mobile services: 4G. It work on 1800Mhz (Band 3) frequency for improving Alcom mobile carrier network **4G LTE** signal. It is the best suitable for medium size, boost indoor signal areas up to **300 m2**, perfect for home, cafes, restaurants, pubs, clubs and more.

* * *

**Clear Voice**  
No Miss Important Calls  
**Wow 2G/4G Calls**  
Eliminates Dropped Calls

**Send/Receive SMS**  
SMS Text Messages Quickly  
**Consistent Connection**  
Reliable 4G/LTE Data

**Signal Wider Coverage**  
Reception Up to 300 sq.m.  
**4G/LTE Internet**  
Faster Uploads & Downloads

* * *

  

### 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)

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### 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)

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### Specification

(scroll to view all)

Application & Bands

\[4G LTE\] (Band 3)

Country

Finland

**Boost All On**

Alcom (4G)

Users Supporting

30 Simultaneously

Band

Single Band 3

Frequency

1800MHz

Gain(dB)

Uplink Gp≥60; Downlink Gp≥65

Up-link

1710~1785 MHz

Down-link

1805~1880 MHz

Export Power(Po)

≥20dBm

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 3, 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 4G LTE Mobile Signal Booster? - A 4G LTE Mobile Signal Booster is a device that strengthens weak mobile signals. It takes the signal from outside, amplifies it, and then transmits it inside your home or business, helping you enjoy better call quality and faster internet.
2.  How does the booster work? - The booster works by first capturing the weak mobile signals from the outside using an outdoor antenna. It then increases the strength of these signals and sends them to an indoor antenna, which broadcasts the stronger signal in your space.
3.  Who can benefit from using this booster? - Anyone with poor mobile signal in their home or business can benefit from this booster. It is especially useful for people living in rural areas or places with lots of buildings that block signals.
4.  Is it easy to install a mobile signal booster? - Yes! The signal booster kit comes with everything you need and is designed for easy installation. Just follow the simple instructions, and you can have it set up in no time!
5.  What size area can the Alcom booster cover? - The Alcom signal booster can cover areas up to 300 square meters. This makes it ideal for homes, offices, cafes, and larger spaces where signal strength needs improvement.
6.  Can this booster work without an outside signal? - No, the booster needs some signal from outside to work. If there’s no signal outdoors, it won’t be able to amplify anything inside your home or business.
7.  What upgrades are available for the Alcom booster? - You can upgrade to longer cables, a higher-performance outdoor aerial, or a surge protector to help safeguard the device from lightning strikes.
8.  How many users can connect to the booster at once? - The Alcom booster can support up to 30 users at the same time, making it perfect for busy households or small businesses.
9.  Does it support both calls and internet data? - Absolutely! The booster enhances both voice call quality and mobile internet data, allowing you to make calls and browse the internet more smoothly.
10.  How do I know if this booster is right for me? - To determine if this booster is suitable for you, check the mobile signal strength in your area, and see if it falls within the supported frequency bands of the device. Additionally, understanding your space's coverage needs can help make your decision.

TAGES: 4G LTE, mobile signal booster, Alcom, 300m2 coverage, signal amplification, indoor antenna, outdoor antenna, Finland mobile network

## Details

- **Price:** 183.82 GBP - 303.82 GBP
- **Vendor:** UKMobileBooster.com
- **Type:** Finland
- **Tags:** application 4G LTE Data, coverage up to 300 sq metres, fi Alcom, fi fi, has_stock_countdown, provider Alcom

## 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

- 4G LTE - 300m2 (Alcom) Mobile Signal Booster
- 4G LTE - 300m2 (Alcom) Mobile Signal Booster
- 4G LTE - 300m2 (Alcom) Mobile Signal Booster
- 4G LTE - 300m2 (Alcom) Mobile Signal Booster
- 4G LTE - 300m2 (Alcom) Mobile Signal Booster
- 4G LTE - 300m2 (Alcom) Mobile Signal Booster
- 4G LTE - 300m2 (Alcom) Mobile Signal Booster
- 4G LTE - 300m2 (Alcom) Mobile Signal Booster
- 4G LTE - 300m2 (Alcom) Mobile Signal Booster
- 4G LTE - 300m2 (Alcom) Mobile Signal Booster

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> Source: [B4U](https://www.ukmobilebooster.com/products/fi-d300-mobile-booster)
> Updated: 2026-09-02