# 3G & 4G LTE - 250m2 (Telia/Elisa/DNA/Tele Finland) Mobile Signal Booster ##### **Enhanced Signal Quality** Experience uninterrupted connectivity with our 3G & 4G LTE signal booster, designed specifically for Finland's 800MHz and 2100MHz frequencies. Perfect for home or business environments, it significantly improves voice clarity and reduces dropped calls, ensuring you stay connected at all times. ##### **Wide Coverage Area** Cover up to 250m² with our powerful booster, ideal for medium-sized spaces like cafes, restaurants, and pubs. With this comprehensive coverage, you can enjoy seamless connectivity whether you're on a call, sending texts, or browsing the web. ##### **Dual Band Compatibility** Our booster operates on both 3G and 4G LTE networks, making it versatile and highly functional regardless of your mobile provider. It supports Telia, Elisa, DNA, and Tele Finland, ensuring all users in your home or office can benefit from improved signal strength. ##### **Easy Installation** Get started quickly with our all-in-one kit that includes everything you need for installation: external aerial, cables, booster unit, and internal aerial. Experience frustration-free setup to enhance your mobile connectivity effortlessly. ##### **Upgrade Options Available** Tailor your booster system to meet your needs with our upgrade options for external cables and antennas. Optimize performance in areas with weaker signals and ensure you are always connected, no matter your surroundings. ##### **Reliable Technology** Backed by advanced technology, our booster efficiently amplifies existing signals rather than creating new ones. This ensures you always have a reliable connection, enhance your data experience with faster uploads and downloads! It boost **3G and 4G LTE** signal on 800MHz, 2100MHz frequency, the frequencies used in **Finland** by mobile networks to deliver their mobile services: 3G, 3.5G (also known as HSDPA provides faster data rates than 3G) and 4G. It can boost ALL mobile network operators for improving **3G** signal. And boost Telia, Elisa, DNA and Tele Finland mobile carrier networks 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**. The booster 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 4G and 3G mobile phone networks, will provide coverage on both 800MHz, 2100MHz frequency **simultaneously**. It's Dual Band booster and is an **ESSENTIAL** if many people in the same household are on different mobile phone networks! * * * **Wow 3G/4G Calls** Eliminates Dropped Calls **Clear Voice** No Miss Important Calls **Consistent Connection** Reliable 3G/4G LTE Data **Send/Receive SMS** SMS Text Messages Quickly **3G/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) * * * ### 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 \[3G & 4G/LTE Data\] (Band 20, 1) Country Finland **Boost All On** Telia (3G & 4G) Elisa (3G & 4G) DNA (3G & 4G) Alcom (3G) Tele Finland (3G & 4G) Users Supporting 25 Simultaneously Band Dual Band 20 & 1 Frequency 800MHz & 2100MHz Gain(dB) Uplink Gp≥60; Downlink Gp≥65 Up-link 832~862 MHz; 1930~1990 MHz Down-link 791~821 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 20, 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 and how does it work? - A mobile signal booster is a device that strengthens the mobile signal in your home or office. It takes the weak signal from outside, amplifies it, and sends a stronger signal inside. This way, you can enjoy better call quality, faster internet, and more reliable connections! 2. Can this signal booster work for all mobile networks? - Yes! This signal booster supports multiple mobile networks including Telia, Elisa, DNA, and Tele Finland. It boosts both 3G and 4G LTE signals, ensuring that you stay connected no matter which mobile provider you use. 3. How big of an area does the booster cover? - The mobile signal booster can cover an indoor area of up to 250 square meters. This means it's perfect for homes, cafes, restaurants, and other places where you need a strong mobile signal! 4. What should I do if there’s no signal outside? - A signal booster only boosts existing signals. If there’s no signal outside, it can’t create one. Make sure you have some mobile signal outside your home before using a booster. 5. Can I install the booster myself? - Absolutely! The kit comes with everything you need for installation, including an external aerial, cables, the booster unit, and an internal aerial. It's designed for easy setup, so even if you’re not tech-savvy, you can get it up and running. 6. Is it necessary to upgrade the external cables? - If the standard 10-meter external cable is too short for your needs, you have the option to upgrade to longer cables. This ensures that you can install your booster effectively in any location. 7. What upgrades can I choose for better performance? - You can enhance your booster’s performance by upgrading to a higher gain outdoor antenna, especially if your phone shows just one or two signal bars. Additionally, you can add a lightning surge protector to keep your system safe from electrical surges. 8. How can I check which frequency band my phone uses? - To find out your phone's frequency band, dial \*3001#12345#\* and check the 'Freq Band Indicator' in 'Serving Cell Info'. Alternatively, you can use apps like 'CellMapper' or 'Network Signal Info Pro'. 9. What kind of phones are compatible with this booster? - The booster is compatible with all 3G and 4G LTE phones. If your phone supports 4G Calling (VoLTE), you’ll enjoy clearer voice calls when connected to the boosted signal! 10. Will I experience dropped calls or slow internet? - With the mobile signal booster, you can eliminate dropped calls and improve your internet speed significantly. You can expect faster uploads and downloads, allowing you to stay connected and enjoy reliable service! TAGES: 3G signal booster, 4G LTE booster, mobile signal booster, Telia mobile network, Elisa mobile signal, DNA 4G coverage, Tele Finland signal booster, indoor signal amplification ## Details - **Price:** 295.0 GBP - 415.0 GBP - **Vendor:** UKMobileBooster.com - **Type:** Finland - **Tags:** application 3G Data & 4G LTE Data, coverage up to 250 sq metres, fi DNA, fi Elisa, fi fi, fi Tele, fi Telia, provider DNA, provider Elisa, provider Tele Finland, provider Telia ## Variants | Variant | Price | Available | |---------|-------|-----------| | No / No / No | 295.00 GBP | In stock | | No / No / Yes | 315.00 GBP | In stock | | No / Yes / No | 345.00 GBP | In stock | | No / Yes / Yes | 365.00 GBP | In stock | | 20 M / No / No | 315.00 GBP | In stock | | 20 M / No / Yes | 335.00 GBP | In stock | | 20 M / Yes / No | 365.00 GBP | In stock | | 20 M / Yes / Yes | 385.00 GBP | In stock | | 30 M / No / No | 325.00 GBP | In stock | | 30 M / No / Yes | 345.00 GBP | In stock | | 30 M / Yes / No | 375.00 GBP | In stock | | 30 M / Yes / Yes | 395.00 GBP | In stock | | 40 M / No / No | 335.00 GBP | In stock | | 40 M / No / Yes | 355.00 GBP | In stock | | 40 M / Yes / No | 385.00 GBP | In stock | | 40 M / Yes / Yes | 405.00 GBP | In stock | | 50 M / No / No | 345.00 GBP | In stock | | 50 M / No / Yes | 365.00 GBP | In stock | | 50 M / Yes / No | 395.00 GBP | In stock | | 50 M / Yes / Yes | 415.00 GBP | In stock | ## Images - 3G & 4G LTE - 250m2 (Telia/Elisa/DNA/Tele Finland) Mobile Signal Booster - 3G & 4G LTE - 250m2 (Telia/Elisa/DNA/Tele Finland) Mobile Signal Booster - 3G & 4G LTE - 250m2 (Telia/Elisa/DNA/Tele Finland) Mobile Signal Booster - 3G & 4G LTE - 250m2 (Telia/Elisa/DNA/Tele Finland) Mobile Signal Booster - 3G & 4G LTE - 250m2 (Telia/Elisa/DNA/Tele Finland) Mobile Signal Booster - 3G & 4G LTE - 250m2 (Telia/Elisa/DNA/Tele Finland) Mobile Signal Booster - 3G & 4G LTE - 250m2 (Telia/Elisa/DNA/Tele Finland) Mobile Signal Booster - 3G & 4G LTE - 250m2 (Telia/Elisa/DNA/Tele Finland) Mobile Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/fi-cw250-mobile-booster) > Updated: 2026-09-02