# 3G & Calls - 250m2 (Cosmote/Vodafone/Wind) Mobile Signal Booster ##### **Enhanced 3G & Call Quality** Experience crystal-clear voice calls and reliable 3G data with our dual-band booster. It operates on both 900MHz and 2100MHz frequencies, ensuring that your voice and data services from Cosmote, Vodafone, and Wind are always strong and consistent. ##### **Wide Coverage Area** Our booster effectively covers indoor spaces up to 250 m², making it perfect for homes, cafes, restaurants, and clubs. Say goodbye to dead zones and enjoy uninterrupted connectivity in every corner. ##### **Multi-User Support** Designed to support up to 25 users simultaneously, this mobile booster is an essential solution for households or businesses with multiple carriers. Keep everyone connected without compromising on signal quality. ##### **Complete Installation Kit** Everything you need for a seamless setup is included in one convenient package. Our kit features an external aerial, internal aerial, cables, and a booster unit—no additional purchases necessary! ##### **Upgrade Options Available** Customize your experience with options for higher gain antennas and lightning surge protectors. Enhance your setup to achieve optimal performance, even in areas with weak signals. ##### **User-Friendly Tools** Easily check your frequency band using your phone or dedicated apps. Our user-friendly instructions make it simple to monitor and optimize your mobile signal, ensuring the best connectivity possible. It boost **3G and Calls** signal on 900MHz, 2100MHz frequencies, the frequencies used in **Greece** used by mobile networks to deliver their mobile services: 3G, 3.5G (also known as HSDPA provides faster data rates than 3G) and 2G. It work on both 900Mhz (Band 8) & 2100Mhz (Band 1) frequencies for improving Cosmote, Vodafone, Wind etc ALL mobile carrier networks **3G, Voice Calls and 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. This system is compatible with all 3G mobile phone networks, will provide coverage on both 900MHz, 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 Calls** Eliminates Dropped Calls **Clear Voice** No Miss Important Calls **Consistent Connection** Reliable 3G Data **Send/Receive SMS** SMS Text Messages Quickly **3G 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 \[3G Data and Voice Calls\] (Band 8, 1) Country Greece **Boost All On** Cosmote (3G & 2G) Vodafone (3G & 2G) Wind (3G & 2G) Frog Mobile (3G & 2G) Q Mobile (3G & 2G) Tazamobile (3G & 2G) Users Supporting 25 Simultaneously Band Dual Band 8 & 1 Frequency 900 & 2100MHz Gain(dB) Uplink Gp≥50; Downlink Gp≥55 Up-link 890~915 MHz; 1930~1990 MHz Down-link 935~960 MHz; 2110~2180 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 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 3G Mobile Signal Booster? - A 3G Mobile Signal Booster is a device that improves mobile signals for calls and data on your phone. It works especially well for 3G networks used by providers like Cosmote, Vodafone, and Wind in Greece. By boosting signals within a certain area, it helps you enjoy clearer calls and faster internet. 2. How does the signal booster improve my phone calls? - The signal booster helps you make and receive calls without interruptions. It takes weak signals from outside and makes them stronger inside your home or business. This means fewer dropped calls, clearer voice quality, and more reliable connections when you need to talk. 3. Can this booster be used for different mobile carriers? - Yes! This mobile signal booster is compatible with multiple carriers, including Cosmote, Vodafone, and Wind. It supports both 900MHz and 2100MHz frequencies, allowing everyone in your home to enjoy improved service regardless of their network. 4. How much area can the booster cover? - The booster can cover indoor areas up to 250 square meters, which is ideal for homes, cafes, and restaurants. This means that you and your friends can enjoy a better mobile signal in a spacious environment. 5. What do I do if I don’t have any signal outside? - If there is no signal outside, the booster won’t work. The signal booster amplifies existing signals, but it cannot create signals from nothing. So, it's important to check your outdoor signal strength before purchasing. 6. How can I check my phone's frequency band? - You can check your phone's frequency band by dialling \*3001#12345#\* and pressing the Call button. Then tap on 'Serving Cell Info' to see the 'Freq Band Indicator', or you can download apps like 'CellMapper' for help. 7. What’s included in the booster kit? - The booster kit includes everything you need for installation: an external antenna, indoor antenna, cables, power adapter, and the booster unit itself. Everything is designed to make setup easy for you. 8. Can I upgrade the outdoor cables? - Yes! If the standard 10-meter cables aren’t enough to reach your area, you can choose to upgrade to longer cables. This flexibility helps you place the antennas where they will work best. 9. What is the Lightning Surge Protector? - The Lightning Surge Protector is an accessory that protects your equipment from damage caused by lightning strikes. It’s easy to install and helps ensure your signal booster and other devices stay safe during storms. 10. Is installation easy for non-tech users? - Absolutely! The signal booster kit is designed for easy installation. It comes with clear instructions, so even if you're not very technical, you should be able to set it up without any problem. TAGES: 3G mobile signal booster, Greece mobile networks, Vodafone signal booster, Cosmote signal amplifier, Wind mobile booster, indoor signal coverage, dual band booster, enhance voice calls ## Details - **Price:** 235.0 GBP - 355.0 GBP - **Vendor:** UKMobileBooster.com - **Type:** Greece - **Tags:** application 3G Data & Voice Calls, coverage up to 250 sq metres, gr gr, has_stock_countdown, provider Cosmote, provider Frog Mobile, provider Q Mobile, provider Tazamobile, provider Vodafone, provider Wind ## 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 - 3G & Calls - 250m2 (Cosmote/Vodafone/Wind) Mobile Signal Booster - 3G & Calls - 250m2 (Cosmote/Vodafone/Wind) Mobile Signal Booster - 3G & Calls - 250m2 (Cosmote/Vodafone/Wind) Mobile Signal Booster - 3G & Calls - 250m2 (Cosmote/Vodafone/Wind) Mobile Signal Booster - 3G & Calls - 250m2 (Cosmote/Vodafone/Wind) Mobile Signal Booster - 3G & Calls - 250m2 (Cosmote/Vodafone/Wind) Mobile Signal Booster - 3G & Calls - 250m2 (Cosmote/Vodafone/Wind) Mobile Signal Booster - 3G & Calls - 250m2 (Cosmote/Vodafone/Wind) Mobile Signal Booster - 3G & Calls - 250m2 (Cosmote/Vodafone/Wind) Mobile Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/gr-gw250-mobile-booster) > Updated: 2026-09-02