# 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster ##### **Boosts 4G LTE and Calls** Experience unparalleled connectivity with our 4G LTE & Calls signal booster, specifically designed to enhance 1800MHz frequency signals. Perfectly suited for Three (3) mobile carrier networks, it ensures clear voice calls, swift SMS delivery, and a reliable 4G data connection. Ideal for medium-sized spaces up to 250m², it transforms your home, cafe, or club into a communication haven. ##### **Crystal Clear Voice Calls** Never miss an important call again! Our signal booster provides crystal clear voice quality, ensuring every conversation is heard without interruptions. Say goodbye to dropped calls and hello to seamless communication. ##### **Rapid SMS & Text Messages** With our booster, sending and receiving SMS text messages is a breeze. Enjoy fast and consistent messaging, so you can stay connected with friends and family without any delays. ##### **Reliable 4G/LTE Data Connection** Gain a consistently reliable 4G/LTE data connection for all your browsing needs. Whether you're streaming, gaming, or working from home, enjoy faster upload and download speeds that keep you ahead. ##### **Extensive Coverage Area** Boost your indoor signal across vast areas of up to 250m². Our mobile signal booster ensures enhanced reception throughout your space, making it perfect for homes, offices, and larger venues. ##### **Comprehensive Installation Kit** Our all-in-one installation kit includes everything you need to boost your signal: an external aerial, cables, the booster base unit, an internal aerial, and a power adapter. Get everything set up with ease! It boost **4G LTE and Calls** signal on 1800MHz frequency, the frequency used in **Indonesia** used by mobile networks to deliver their mobile services: 2G (also known as GSM) and 4G. It work on 1800Mhz (Band 3) frequency for improving Three (3) mobile carrier networks **Voice Calls, Text and 4G LTE** 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 **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 3) Country Indonesia **Boost All On** Three 3 (4G & 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 4G LTE Mobile Signal Booster? - A 4G LTE Mobile Signal Booster is a device that improves your mobile phone signal, especially for calls and internet use. It makes weak signals stronger, helping you get better coverage inside your home or other buildings. 2. How does the signal booster work? - The signal booster picks up weak signals from nearby mobile towers and amplifies them. It has an outdoor antenna that captures the signal and a booster unit that increases its strength. This enhanced signal is then sent to indoor antennas, providing better service throughout your space. 3. Where can I use this signal booster? - This signal booster is best for medium-sized areas, like homes, cafes, restaurants, and clubs, covering up to 250 square meters. If you often have trouble making calls or using the internet in these spaces, this device can help. 4. Can I install the signal booster myself? - Yes! The kit comes with everything you need for installation, including antennas, cables, and a power adapter. It's designed to be user-friendly and can typically be installed by anyone without special skills. 5. What if I have no signal outside? - Unfortunately, a signal booster can only make existing signals stronger. If there are no signals coming from outside, it won't work. Make sure you have a decent signal outside before installing the booster. 6. How can I check if my phone is using the right frequency band? - To check if your iPhone is using the right frequency band, dial \*3001#12345#\* on your phone and press the call button. Then select 'Serving Cell Info' and look for 'Freq Band Indicator' to see if it shows Band 3. 7. How many users can connect to the booster at once? - This signal booster can support up to 25 users at the same time, allowing multiple people to enjoy improved call quality and faster internet speeds without any issues. 8. What kind of upgrades are available? - You can upgrade to longer external cables if the 10-meter ones provided don't reach your area. Additionally, you can get a higher gain Yagi antenna for better performance, especially in areas with weak signals. 9. What happens if there's a lightning storm? - To protect your equipment during a lightning storm, you can install a Lightning Surge Protector. It helps shield your booster and antennas from high power surges, keeping your devices safe and functional. 10. What frequencies does the booster work on? - This booster works on the 1800MHz frequency, known as Band 3, which is commonly used by mobile networks in Indonesia for both 2G and 4G services. This makes it effective for improving calls and data connections. TAGES: 4G LTE booster, mobile signal booster, Three 3 signal enhancement, Indonesia mobile services, indoor signal booster 250m2, GSM LTE amplification, dropped calls solution, signal coverage improvement ## Details - **Price:** 169.0 GBP - 289.0 GBP - **Vendor:** UKMobileBooster.com - **Type:** Indonesia - **Tags:** application 4G LTE Data & Voice Calls, coverage up to 250 sq metres, has_stock_countdown, id id, provider Three ## 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 - 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster - 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster - 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster - 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster - 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster - 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster - 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster - 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster - 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster - 4G LTE & Calls - 250m2 (Three 3) Mobile Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/id-d250-mobile-booster) > Updated: 2026-09-02