# 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster ##### **Enhanced Signal Strength** Experience the power of boosted 4G LTE and calls with our dual-band mobile signal booster, designed to enhance coverage on both 900MHz and 1800MHz frequencies. This device is specially crafted for AIS, DTAC, and Truemove-H networks, ensuring a reliable connection for voice calls, text messages, and high-speed internet across medium-sized spaces up to 250m². ##### **Clear Voice Quality** Say goodbye to dropped calls and weak connections! Our signal booster allows for crystal-clear voice calls, even in areas where 4G calling is available. Enjoy uninterrupted conversations with friends and family, and never miss an important call again. ##### **Faster Data Speeds** Unlock the full potential of your mobile data! With our powerful booster, enjoy rapid uploads and downloads, making streaming, browsing, and online gaming smoother than ever. Experience fast 4G LTE speeds and never worry about slow connections again. ##### **Wider Coverage Area** Transform your indoor environment into a strong signal zone! This booster effectively covers areas up to 250m², making it perfect for homes, cafés, restaurants, and more. Enhance connectivity in any medium-sized venue effortlessly. ##### **Full Installation Kit Included** Get everything you need in one purchase! Our comprehensive kit comes equipped with all necessary components for a seamless installation, including an external aerial, cables, booster unit, internal aerial, and power adapter. Setting up your signal booster has never been easier! ##### **Upgrade Options for Optimal Performance** Customize your setup for maximum efficiency! Choose from upgrade options such as a higher gain Yagi antenna for better signal performance or a lightning surge protector for added safety. Tailor your booster to meet your specific coverage needs and protect your investment. It boost **4G LTE and Calls** signal on 900MHz, 1800MHz frequencies, the frequencies used in **Thailand** used by mobile networks to deliver their mobile services: 2G (also known as GSM) and 4G. It work on both 900Mhz (Band 8) & 1800Mhz (Band 3) frequencies for improving AIS, DTAC and Truemove-H mobile carrier **Voice Calls, Text and 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. If you have a 4G ready phone, but you’re **not in a 4G area**, you’ll **still be able to use voice calls and text**. 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. This system is compatible with all GSM mobile phone networks, will provide coverage on both 900MHz, 1800MHz frequency **simultaneously**. It's Dual Band booster and is an **ESSENTIAL** if many people in the same household are on different mobile phone networks! * * * **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 250 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) * * * ### 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 \[4G/LTE & Calls\] (Band 8, 3) Country Thailand **Boost All On** AIS (4G & 2G) DTAC (4G & 2G) Truemove-H (4G & 2G) Users Supporting 25 Simultaneously Band Dual Band 8 & 3 Frequency 900 & 1800MHz Gain(dB) Uplink Gp≥50; Downlink Gp≥55 Up-link 890~915 MHz; 1710~1785 MHz Down-link 935~960 MHz; 1805~1880 MHz Export Power(Po) \-70~-40 dBm/FA(1.23MHz) 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 8, or 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 helps to improve your phone's signal by amplifying weak signals. It takes the outside signal, makes it stronger, and sends it inside your home or business. So, if you have trouble making calls or getting internet on your phone, a mobile signal booster could help. 2. How does the 4G LTE mobile signal booster work? - The 4G LTE mobile signal booster works by capturing the weak mobile signals from outside, amplifying them, and sending the stronger signals indoors. This means that you can enjoy clearer voice calls, faster internet, and fewer dropped calls, even if you're in a place where the signal is usually weak. 3. Who can benefit from this mobile signal booster? - This mobile signal booster is great for anyone who has trouble with their phone signal indoors. It’s perfect for families, businesses, cafes, restaurants, and anywhere where multiple people use different mobile networks. It helps everyone get better calls and faster internet! 4. Is this booster compatible with all phone networks? - Yes! This mobile signal booster works with all GSM mobile networks in Thailand, like AIS, DTAC, and Truemove-H. It boosts both 4G and 2G signals, so no matter what network you use, you can enjoy better service. 5. Can I use the booster if there is no signal outside? - Unfortunately, the booster needs some signal from outside to work. If there is no signal at all where you are, the booster cannot create one. It can only help to amplify the signal that is already there. 6. What areas can this booster cover? - This mobile signal booster can cover areas up to 250 square meters. This means it’s suitable for homes, offices, cafes, and similar places where you need better mobile service. 7. What comes with the mobile signal booster kit? - When you buy the mobile signal booster, you get everything you need to set it up! This includes the booster unit, outdoor antenna, indoor antenna, power adapter, and cables, all in one package. It's designed to be easy to install. 8. What if I need longer cables for installation? - If the standard 10-meter cables are not long enough for your installation, you can upgrade to longer cables. This helps make sure that the booster can be positioned where it can get the best signal. 9. Can I install the signal booster myself? - Yes! The signal booster kit is designed for easy installation, even if you're not very tech-savvy. It comes with clear instructions to help you set everything up step by step. 10. How do I know which frequency band my phone is on? - To check your phone's frequency band, you can dial \*3001#12345#\* and press the call button. This will show you information about the signal, including the frequency band your phone is using. TAGES: 4G LTE booster, mobile signal booster, AIS DTAC Truemove-H, dual band booster, signal amplification, Thailand mobile networks, indoor coverage 250m2, voice over LTE calls ## Details - **Price:** 235.0 GBP - 355.0 GBP - **Vendor:** UKMobileBooster.com - **Type:** Thailand - **Tags:** application 4G LTE Data & Voice Calls, coverage up to 250 sq metres, has_stock_countdown, provider AIS, provider DTAC, provider Truemove-H, th th ## Variants | Variant | Price | Available | |---------|-------|-----------| | No / No / No | 235.00 GBP | In stock | | No / No / Yes | 255.00 GBP | In stock | | No / Yes / No | 285.00 GBP | In stock | | No / Yes / Yes | 305.00 GBP | In stock | | 20 M / No / No | 255.00 GBP | In stock | | 20 M / No / Yes | 275.00 GBP | In stock | | 20 M / Yes / No | 305.00 GBP | In stock | | 20 M / Yes / Yes | 325.00 GBP | In stock | | 30 M / No / No | 265.00 GBP | In stock | | 30 M / No / Yes | 285.00 GBP | In stock | | 30 M / Yes / No | 315.00 GBP | In stock | | 30 M / Yes / Yes | 335.00 GBP | In stock | | 40 M / No / No | 275.00 GBP | In stock | | 40 M / No / Yes | 295.00 GBP | In stock | | 40 M / Yes / No | 325.00 GBP | In stock | | 40 M / Yes / Yes | 345.00 GBP | In stock | | 50 M / No / No | 285.00 GBP | In stock | | 50 M / No / Yes | 305.00 GBP | In stock | | 50 M / Yes / No | 335.00 GBP | In stock | | 50 M / Yes / Yes | 355.00 GBP | In stock | ## Images - 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster - 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster - 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster - 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster - 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster - 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster - 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster - 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster - 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster - 4G LTE & Calls - 250m2 (AIS/DTAC/Truemove-H) Mobile Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/th-gd250-mobile-booster) > Updated: 2026-09-02