# Calls & 3G & 4G LTE - 250m2 (A1/Three) Mobile Signal Booster ##### **Comprehensive Signal Boosting** Experience uninterrupted connectivity with our mobile signal booster that enhances all calls, 3G, and 4G/LTE signals across popular frequencies including 900MHz, 1800MHz, and 2100MHz. Say goodbye to dropped calls and enjoy clearer conversations on A1, Three, T-Mobile, and other major networks in Austria. ##### **Wide Coverage Area** Designed to cover indoor spaces up to 250 square meters, our signal booster is ideal for homes, cafes, restaurants, and more. It ensures that you receive strong signals in medium-sized environments, making it perfect for everyday use. ##### **Simultaneous User Support** Support up to 25 simultaneous users without compromising performance. Perfect for families, businesses, and social gatherings, this mobile signal booster allows multiple devices to connect reliably, ensuring everyone stays connected. ##### **Robust and Reliable Performance** Our Tri Band booster guarantees simultaneous coverage across 2G, 3G, and 4G networks. The seamless switching feature enables smooth transitions back to normal network connectivity, maintaining consistent internet speeds and call quality. ##### **Easy Installation** Our kit comes complete with everything needed for installation, including an external aerial, cables, booster base unit, and power adapter. You can set it up easily with basic tools, making it hassle-free for any user. ##### **Upgrade Options for Enhanced Performance** For optimal performance, consider upgrading your external cables or installing a high-gain Yagi antenna. Tailor your signal boosting solution according to your specific needs and maximize the effectiveness of your device. It boost **All Calls, All 3G & 4G/LTE** signal on 900MHz, 1800MHz, 2100MHz frequencies, the frequencies used in **Austria** used by mobile networks to deliver their mobile services: 2G (also known as GSM), 3G, 3.5G (also known as HSDPA provides faster data rates than 3G) and 4G. It can boost all networks on A1, Three, T-Mobile, Orange, Bob, Eety, HoT, Telering, Lycamobile, Vectone and Yesss! for improving **Voice Calls & 3G** signal. It also can boost all network on A1, Three, T-Mobile, HoT, Telering, Vectone 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. If you have a 4G ready phone, but you’re not in a 4G area, you’ll still be able to use 3G. 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. The system unlike other kits, this device will boost ALL networks including 2G, 3G, 4G and 4G Calling, is designed for universal mobile voice calls, 3G and 4G coverage. The solution will provide coverage on all 900MHz, 1800MHz, 2100MHz networks **simultaneously**. It's Tri 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/3G/4G Calls** Eliminates Dropped Calls **Battery Life** Get Longer On Your Phone **Send/Receive SMS** SMS Text Messages Quickly **Consistent Connection** Reliable 3G/4G Data **Seamless Switching** Back to Normal Network **Signal Wider Coverage** Reception Up to 250 sq.m. **3G/4G Internet** Faster Uploads & Downloads **Multiple Users** 25 Simultaneously * * * ### 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 \[Voice Calls & 3G & 4G LTE\] (Band 8, 3, 1) Country Austria **Boost All On** A1 (2G & 3G & 4G) Three (2G & 3G & 4G) T-Mobile (2G & 3G & 4G) Orange (2G & 3G) Bob (2G & 3G) Eety (2G & 3G) HoT (2G & 3G & 4G) Telering (2G & 3G & 4G) Lycamobile (2G & 3G) Vectone (2G & 3G & 4G) Yesss! (2G & 3G) Users Supporting 25 Simultaneously Band Tri Band 8 & 3 & 1 Frequency 900 & 1800 & 2100MHz Gain(dB) Uplink Gp≥55; Downlink Gp≥60 Up-link 890~915 MHz; 1710~1785 MHz; 1930~1990 MHz Down-link 935~960 MHz; 1805~1880 MHz; 2110~2180 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 1 x 5 Meters Indoor Cable **Warming Tips:** - Band Confirmation: This booster can boost signals on Band 8, or Band 3, or Band 1, 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 improve the strength of mobile signals in areas where they are weak. It can boost signals for voice calls and mobile data, making it easier to make calls, send texts, and use the internet on your phone. 2. How does the A1/Three Mobile Signal Booster work? - The A1/Three Mobile Signal Booster works by capturing weak mobile signals from outside your home, amplifying them, and then sending the stronger signals inside. This helps improve call quality and internet speeds for all phones in the area. 3. Who can use this mobile signal booster? - Anyone living or working in an area with poor mobile signal can use this booster. It's great for homes, cafes, restaurants, and clubs. It can help up to 25 people use their phones at the same time! 4. Will the booster work with all mobile networks? - Yes! The A1/Three Mobile Signal Booster works with many mobile networks in Austria, including A1, Three, T-Mobile, and more. It boosts 2G, 3G, and 4G signals, making it very versatile. 5. What range does this booster cover? - This booster can effectively cover up to 250 square meters (about the size of a medium house). It's perfect for providing better signal indoors. 6. Can I install the booster myself? - Yes! The mobile signal booster kit comes with everything you need for installation, including an outdoor antenna, indoor antenna, and cables. It's designed to be user-friendly, so you should be able to set it up without professional help. 7. What if my area has no signal at all? - If there’s no signal outside, the booster won’t be able to work. It amplifies existing signals, so it needs some level of signal detection outside to function effectively. 8. What if my phone supports 4G but I don’t get a 4G signal? - If your phone supports 4G but you're in an area without 4G service, the booster will still allow you to use 3G services. You can continue to make calls and use the internet at those speeds. 9. Can I upgrade the booster for better performance? - Yes! You can upgrade to a higher gain outdoor antenna or longer cables if you need to enhance performance. There are options available to suit your specific needs. 10. Is there any special equipment needed for installation? - No, the booster kit comes complete with all necessary equipment for installation, including antennas, cables, and a power adapter. Simply follow the included instructions for setup. TAGES: mobile signal booster, 3G 4G LTE signal booster, voice calls enhancement, indoor signal booster, universal mobile coverage, Austria mobile networks, boost cell signal, antenna upgrade options ## Details - **Price:** 435.0 GBP - 555.0 GBP - **Vendor:** UKMobileBooster.com - **Type:** Austria - **Tags:** application Voice Calls & 3G & 4G LTE Data, at A1, at at, at Three, coverage up to 250 sq metres, has_stock_countdown, provider A1, provider Three ## Variants | Variant | Price | Available | |---------|-------|-----------| | No / No / No | 435.00 GBP | In stock | | No / No / Yes | 455.00 GBP | In stock | | No / Yes / No | 485.00 GBP | In stock | | No / Yes / Yes | 505.00 GBP | In stock | | 20 M / No / No | 455.00 GBP | In stock | | 20 M / No / Yes | 475.00 GBP | In stock | | 20 M / Yes / No | 505.00 GBP | In stock | | 20 M / Yes / Yes | 525.00 GBP | In stock | | 30 M / No / No | 465.00 GBP | In stock | | 30 M / No / Yes | 485.00 GBP | In stock | | 30 M / Yes / No | 515.00 GBP | In stock | | 30 M / Yes / Yes | 535.00 GBP | In stock | | 40 M / No / No | 475.00 GBP | In stock | | 40 M / No / Yes | 495.00 GBP | In stock | | 40 M / Yes / No | 515.00 GBP | In stock | | 40 M / Yes / Yes | 545.00 GBP | In stock | | 50 M / No / No | 485.00 GBP | In stock | | 50 M / No / Yes | 505.00 GBP | In stock | | 50 M / Yes / No | 535.00 GBP | In stock | | 50 M / Yes / Yes | 555.00 GBP | In stock | ## Images - Calls & 3G & 4G LTE - 250m2 (A1/Three) Mobile Signal Booster - Mobile Signal Booster Panel Antenna - Mobile Signal Booster Cables - Mobile Signal Booster Ceiling Antenna - Mobile Signal Booster Package - Mobile Signal Booster How Panel Antenna Works - Mobile Signal Booster How Ceiling Antenna Works - Mobile Signal Booster Panel Ceiling Antennas - Mobile Signal Booster How it Works --- > Source: [B4U](https://www.ukmobilebooster.com/products/at-gdw250-mobile-booster) > Updated: 2026-09-02