# Calls - 250m2 (DTAC) Mobile Signal Booster

##### **Enhanced Call Quality**

  

Experience crystal-clear voice calls without interruptions. The Calls - 250m2 DTAC Mobile Signal Booster enhances your mobile voice quality, ensuring you never miss an important call again.

##### **Reliable SMS Delivery**

  

Send and receive SMS messages swiftly with boosted signal strength. This mobile booster is designed to improve text message delivery, so you're always connected.

##### **Wider Coverage Area**

  

Transform your signal strength across 250 square meters. Ideal for homes, cafes, restaurants, and more, it ensures that you enjoy consistent mobile connectivity in all corners of your space.

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

  

Everything you need for a successful installation comes in one package! The kit includes an external aerial, internal antenna, and all necessary cables—making installation hassle-free.

##### **Flexible Upgrade Options**

  

Customize your signal booster to suit your needs with upgrade options for external cables and antennas. Enhance performance further with a surge protector for maximum equipment safety.

##### **Easy to Install**

  

Set up your mobile signal booster effortlessly. The user-friendly installation guide walks you through each step, ensuring that you start enjoying superior signal strength in no time.

It boost **Calls** signal on 1800MHz frequency, the frequency used in **Thailand** used by mobile networks to deliver their mobile services: 2G (also known as GSM). It work on 1800Mhz (Band 3) frequency for improving DTAC mobile carrier networks **Voice Calls & Text** signal. 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.

* * *

**Clear Voice**  
No Miss Important Calls

**Send/Receive SMS**  
SMS Text Messages Quickly

**Signal Wider Coverage**  
Reception Up to 250 sq.m.

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### 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

\[Voice Calls\] (Band 3)

Country

Thailand

**Boost All On**

DTAC (2G)

Users Supporting

25 Simultaneously

Band

Single Band 3

Frequency

1800MHz

Gain(dB)

Uplink Gp≥55; Downlink Gp≥60

Up-link

1710~1785 MHz

Down-link

1805~1880 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 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 mobile signal booster? - A mobile signal booster is a device that makes your phone's signal stronger. It helps you make calls more easily and send texts faster, especially in places where the signal is weak.
2.  How does the Calls - 250m2 booster work? - The Calls - 250m2 booster picks up the mobile signal from outside and then makes it stronger so that your phone gets better reception inside your home or business. It's like giving your phone a helping hand!
3.  Is the booster easy to install? - Yes! The booster comes with everything you need for installation, and it’s pretty simple. Just follow the step-by-step instructions to put the antennas and cables in the right places.
4.  How much area does the booster cover? - The Calls - 250m2 mobile signal booster can cover up to 250 square meters. This means it works well in medium-sized spaces like homes, cafes, or small offices.
5.  Can it work if there's no signal outside? - No, the booster needs some signal from the outside to work. If there’s no signal outside, it won't be able to help improve the reception inside your home.
6.  What kind of phones can use this booster? - This booster can work with most mobile phones that use the DTAC network in Thailand. It enhances the signal for 2G calls and texts, but won't work for 3G or 4G.
7.  Do I need any special tools to install it? - Not really! You won't need any special tools, just some basic items like a ladder for reaching higher places when installing the external antenna.
8.  Can I use the booster for multiple phones at the same time? - Yes! The Calls - 250m2 booster can support up to 25 phones using it at the same time, so your whole family or team can enjoy a better signal!
9.  What if I want even more coverage? - If you need more coverage than 250 square meters, you might consider getting additional boosters or looking for a model with a larger coverage area.
10.  How can I check if my signal is good enough? - You can check your signal strength by dialing \*3001#12345# on your phone. This will show you the frequency band and help you ensure that the booster will work for you.

TAGES: mobile signal booster, DTAC booster, 250m2 coverage, boost calls Thailand, indoor signal booster, GSM signal repeater, mobile reception improvement, easy installation kit

## Details

- **Price:** 169.0 GBP - 289.0 GBP
- **Vendor:** UKMobileBooster.com
- **Type:** Thailand
- **Tags:** application Voice Calls, coverage up to 250 sq metres, has_stock_countdown, provider DTAC, th th

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| No / No / No | 169.00 GBP | In stock |
| No / No / Yes | 189.00 GBP | In stock |
| No / Yes / No | 219.00 GBP | In stock |
| No / Yes / Yes | 239.00 GBP | In stock |
| 20 M / No / No | 189.00 GBP | In stock |
| 20 M / No / Yes | 209.00 GBP | In stock |
| 20 M / Yes / No | 239.00 GBP | In stock |
| 20 M / Yes / Yes | 259.00 GBP | In stock |
| 30 M / No / No | 199.00 GBP | In stock |
| 30 M / No / Yes | 219.00 GBP | In stock |
| 30 M / Yes / No | 249.00 GBP | In stock |
| 30 M / Yes / Yes | 269.00 GBP | In stock |
| 40 M / No / No | 209.00 GBP | In stock |
| 40 M / No / Yes | 229.00 GBP | In stock |
| 40 M / Yes / No | 259.00 GBP | In stock |
| 40 M / Yes / Yes | 279.00 GBP | In stock |
| 50 M / No / No | 219.00 GBP | In stock |
| 50 M / No / Yes | 239.00 GBP | In stock |
| 50 M / Yes / No | 269.00 GBP | In stock |
| 50 M / Yes / Yes | 289.00 GBP | In stock |

## Images

- Calls - 250m2 (DTAC) Mobile Signal Booster
- Calls - 250m2 (DTAC) Mobile Signal Booster
- Calls - 250m2 (DTAC) Mobile Signal Booster
- Calls - 250m2 (DTAC) Mobile Signal Booster
- Calls - 250m2 (DTAC) Mobile Signal Booster
- Calls - 250m2 (DTAC) Mobile Signal Booster
- Calls - 250m2 (DTAC) Mobile Signal Booster
- Calls - 250m2 (DTAC) Mobile Signal Booster
- Calls - 250m2 (DTAC) Mobile Signal Booster
- Calls - 250m2 (DTAC) Mobile Signal Booster

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> Source: [B4U](https://www.ukmobilebooster.com/products/th-d250-mobile-booster)
> Updated: 2026-09-02