# 4G LTE - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster

##### **Enhanced 4G/LTE Signal**

  

Our mobile signal booster amplifies 4G/LTE signals at 800MHz, ensuring superior connectivity in your home or business. It supports all major Swiss networks such as Swisscom, Sunrise, Salt, and Yallo, delivering a reliable connection regardless of your mobile carrier.

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

  

Designed for medium-sized spaces, this booster effectively enhances signal coverage up to 250 square meters. Perfect for homes, cafes, restaurants, and more, it ensures everyone enjoys strong, uninterrupted mobile service.

##### **Clarity in Calls**

  

With 4G Calling (VoLTE) support, experience clearer voice calls and improved call quality. This feature is ideal for those in areas where voice over LTE is available, enhancing your communication experience.

##### **Complete Installation Kit**

  

This all-inclusive kit comes with everything you need for easy installation: an external aerial, cables, the booster base unit, an internal aerial, and a power adapter. Enjoy hassle-free setup to boost your mobile signal.

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

  

Customize your booster with upgrade options like longer external cables and a higher gain Yagi antenna, ensuring maximum signal reception and performance tailored to your specific needs.

##### **Storm Protection Included**

  

Protect your investment with our Lightning Surge Protector, designed to safeguard your equipment from surges due to lightning. Simple to install, this added layer of protection ensures uninterrupted service.

It boost **4G/LTE** signal on 800MHz frequency, the frequency used in **Switzerland** used by mobile networks to deliver their 4G mobile services. It can boost all networks on Sunrise, Swisscom, Yallo, Lebara, Aldi mobile, Ortel mobile, Lycamobile, Ok.-mobile, Salt Mobile, UPC Cablecom, CoopMobile, TalkTalk and Mucho for improving **4G/LTE** signal. If your phones support 4G Calling (also called Voice over LTE or VoLTE) and your area 4G Calling is available, with the booster you can make clearer voice calls using 4G network. It is the best suitable for medium size, boost indoor signal areas up to **250 m2**, perfect for home, cafes, restaurants, pubs, clubs and more.

* * *

**Consistent Connection**  
Reliable 4G/LTE Data

**4G/LTE Internet**  
Faster Uploads & Downloads

**Signal Wider Coverage**  
Reception Up to 250 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)

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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 20)

Country

Switzerland

**Boost All On**

Swisscom (4G)  
Sunrise (4G)  
Salt Mobile (4G)  
Yallo (4G)  
Aldi mobile (4G)  
CoopMobile (4G)  
Lebara mobile (4G)  
Lycamobile (4G)  
Mucho (4G)  
Ok.-mobile (4G)  
Ortel mobile (4G)  
TalkTalk (4G)  
UPC Cablecom (4G)

Users Supporting

25 Simultaneously

Band

Single Band 20

Frequency

800MHz

Gain(dB)

Uplink Gp≥50; Downlink Gp≥55

Up-link

832~862 MHz

Down-link

791~821 MHz

Export Power(Po)

≥10dBm

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  
1 x 5 Meters Indoor Cable

**Warming Tips:**  
Band Confirmation: This booster can boost signals on Band 20, 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 helps make the mobile phone signal stronger. If you have trouble getting a good signal for your 4G phones, this booster can help by amplifying the existing weak signal and making it clearer. It's great for homes, cafes, restaurants, and other places.
2.  How does the booster work? - The booster works by receiving the weak mobile signal from outside, then amplifying it and sending it inside your building, covering areas up to 250 square meters. If there's no signal outside, it won't work because it can't create a signal, just boost what’s already present.
3.  Which mobile networks does it support? - This booster supports many mobile networks used in Switzerland, such as Swisscom, Sunrise, Salt, Yallo, and others. So, if you use one of these networks for your phone, this booster can help improve your signal.
4.  How can I check if my device is compatible with the booster? - You can check if your phone supports 4G by dialing \*3001#12345#\* on your iPhone and checking the 'Freq Band Indicator' in the 'Serving Cell Info'. This way, you’ll know if your phone can use the 4G LTE signal that the booster provides.
5.  Is it easy to install? - Yes, the kit comes with everything you need to set up the booster. It includes an external aerial, cables, the booster unit itself, an internal aerial, and a power adapter. It’s designed to be easy to install, so you can get started quickly.
6.  What should I do if I need longer cables? - If the standard 10-meter external cable isn’t long enough for your needs, you have the option to upgrade to a longer cable for better coverage. Just choose this option when you purchase the kit!
7.  Can I upgrade to a better antenna? - Yes, if you have a weak signal inside with only one or two bars, you can upgrade to a higher gain Yagi antenna. This will help boost the performance by catching more signal from outside.
8.  How can I protect the booster from lightning? - You can add a lightning surge protector to your setup. This device safeguards your equipment against surges caused by lightning strikes, helping to keep everything safe and working well.
9.  What if I experience signal problems after installation? - If you continue to have issues after installing the booster, first check that all connections are secure and that it's installed correctly. If problems persist, there may be no signal available outside, and the booster cannot help in those cases.
10.  Who can benefit from using this booster? - Anyone living or working in areas with weak 4G signals can benefit from this booster. This includes people at home, patrons in cafes or restaurants, and even employees in offices. It's especially helpful for those who rely heavily on mobile data for internet access and clear voice calls.

TAGES: 4G LTE booster, mobile signal booster, Switzerland mobile networks, 800MHz frequency, indoor signal booster, Voice over LTE, wireless coverage, signal enhancement

## Details

- **Price:** 199.99 GBP - 319.99 GBP
- **Vendor:** UKMobileBooster.com
- **Type:** Switzerland
- **Tags:** application 4G LTE Data, ch Aldi, ch ch, ch CoopMobile, ch Lebara, ch Lycamobile, ch Mucho, ch Ok.-mobile, ch Ortel, ch Salt, ch Sunrise, ch Swisscom, ch TalkTalk, ch UPC Cablecom, ch Yallo, coverage up to 250 sq metres, provider Aldi Mobile, provider CoopMobile, provider Lebara Mobile, provider Lycamobile, provider Mucho, provider Ok.-mobile, provider Ortel Mobile, provider Salt Mobile, provider Sunrise, provider Swisscom, provider TalkTalk, provider UPC Cablecom, provider Yallo

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| No / No / No | 199.99 GBP | In stock |
| No / No / Yes | 219.99 GBP | In stock |
| No / Yes / No | 249.99 GBP | In stock |
| No / Yes / Yes | 269.99 GBP | In stock |
| 20 M / No / No | 219.99 GBP | In stock |
| 20 M / No / Yes | 239.99 GBP | In stock |
| 20 M / Yes / No | 269.99 GBP | In stock |
| 20 M / Yes / Yes | 289.99 GBP | In stock |
| 30 M / No / No | 229.99 GBP | In stock |
| 30 M / No / Yes | 249.99 GBP | In stock |
| 30 M / Yes / No | 279.99 GBP | In stock |
| 30 M / Yes / Yes | 299.99 GBP | In stock |
| 40 M / No / No | 239.99 GBP | In stock |
| 40 M / No / Yes | 259.99 GBP | In stock |
| 40 M / Yes / No | 289.99 GBP | In stock |
| 40 M / Yes / Yes | 309.99 GBP | In stock |
| 50 M / No / No | 249.99 GBP | In stock |
| 50 M / No / Yes | 269.99 GBP | In stock |
| 50 M / Yes / No | 299.99 GBP | In stock |
| 50 M / Yes / Yes | 319.99 GBP | In stock |

## Images

- 4G LTE - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster
- 4G LTE - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster
- 4G LTE - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster
- 4G LTE - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster
- 4G LTE - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster
- 4G LTE - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster
- 4G LTE - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster
- 4G LTE - 250m2 (Swisscom/Sunrise/Salt/Yallo) Mobile Signal Booster

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> Source: [B4U](https://www.ukmobilebooster.com/products/ch-c250-mobile-booster)
> Updated: 2026-09-02