# Calls - 300m2 (EE/ASDA/BT) Mobile Signal Booster # Boost4U D300 — Mobile Signal Booster for EE 300m² UK **The Boost4U D300 (£183.82) is a Band 3 (1800 MHz) home and office mobile signal booster that amplifies 4G LTE data and 2G voice calls for EE, BT, ASDA, Virgin, Orange, T-Mobile, The People's Operator (2G+4G) and Three, iD Mobile, Smarty, Plusnet, Freedom Pop (4G only), covering up to 300 m² with 60 dB uplink / 65 dB downlink gain, ≥20 dBm output, support for 30 simultaneous users, an outdoor Yagi antenna, indoor panel antenna, 10-metre cable and UK power adapter, delivering strong 4G signal and clear calls in medium-sized homes, flats and small offices across the UK.** Designed for UK households and small businesses on EE, BT and ASDA networks who suffer from slow 4G data, dropped calls and "No Service" errors, the D300 captures weak Band 3 (1800 MHz) signal through an outdoor Yagi antenna, amplifies it by up to 65 dB, and rebroadcasts a strong signal throughout 300 m² of indoor space. With 30 simultaneous user capacity, it is ideal for 3–4 bedroom houses, large flats, and small offices with up to 30 employees. ##### **Enhanced Coverage** Experience seamless connectivity with the Calls - 300m2 Mobile Signal Booster, designed to amplify your mobile signal across an impressive 300 square meters. Perfect for homes, cafes, and offices, it ensures that you stay connected without interruptions. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature1-1.png?v=1780277092) ##### **Multi-Network Compatibility** This booster is compatible with major UK networks including EE, BT, and ASDA, making it a versatile solution for enhancing your mobile signal. Enjoy improved voice calls and 4G LTE data across multiple devices simultaneously. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature2.png?v=1780223075) ##### **Easy Installation** Setting up the Calls - 300m2 Mobile Signal Booster is a breeze. The complete kit includes all necessary components, allowing for a straightforward installation process that can be completed in minutes, even for those with minimal technical skills. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature3.png?v=1780223075) ##### **Reliable Performance** Say goodbye to dropped calls and slow data speeds. This booster guarantees a stable connection, enhancing your ability to make clear voice calls and enjoy fast internet browsing, streaming, and downloading. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature4.png?v=1780223075) ##### **Supports Multiple Users** Designed to accommodate up to 30 users at once, the Calls - 300m2 Mobile Signal Booster is ideal for busy environments. Whether in a bustling office or a lively restaurant, everyone can enjoy enhanced signal strength. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature5.png?v=1780223075) ##### **Comprehensive Kit** The booster comes as a complete package, including an outdoor antenna, indoor antenna, and all necessary cables. This ensures you have everything you need for optimal performance right out of the box. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature6.png?v=1780223075) ## **3 Steps to Full Bars** ## 1\. Place the Outdoor Antenna Mount the antenna where you get the best signal. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-1.gif?v=1780223819) ## 2\. Connect the Booster Inside Plug in the booster and connect to the antenna. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-2.gif?v=1780223819) ## 3\. Enjoy Full Bars Everywhere Clear calls, fast data, and no more dead zones. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-3.gif?v=1780223819) ## Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions It boost **Calls & 4G/LTE** signal on 1800MHz frequency, the frequency used in UK used by mobile networks to deliver their mobile services: 2G (also known as GSM) and 4G. It can boost all networks on EE, BT, Asda, Virgin, The People's Operator, Orange, T-Mobile for improving **Voice Calls & Text** signal. It also can boost all networks on Three, EE, BT, Asda, Virgin, iD Mobile, Freedom Pop, Orange, Plusnet, Smarty Mobile, T-Mobile and The People's Operator 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. It is the best suitable for medium size, boost indoor signal areas up to **300 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 300 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. ![Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions 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) ![Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions 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. ![Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions 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 United Kingdom **Boost All On** EE (2G & 4G) Three (4G) ASDA (2G & 4G) BT (2G & 4G) Freedom Pop (4G) iD Mobile (4G) Orange (2G & 4G) Plusnet Mobile (4G) Smarty Mobile (4G) The People's Operator (2G & 4G) T-Mobile (2G & 4G) Virgin (2G & 4G) Users Supporting 30 Simultaneously Band Single Band 3 Frequency 1800MHz Gain(dB) Uplink Gp≥60; Downlink Gp≥65 Up-link 1710~1785 MHz Down-link 1805~1880 MHz Export Power(Po) ≥20dBm Power Adapter Input: AC 100V~240V 50/60Hz; Output: DC 5V What’s Included 1 x Booster 1 x Outdoor Antenna 1 x Indoor Antenna 1 x UK Type 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 Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions 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 Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions 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 Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions 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) ![Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions signal coverage](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Coverage.jpg?v=1698191834) ### **Application Scenarios** ![Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions home application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-home.png?v=1697980834) **Home** ![Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions office application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-office.png?v=1697980832) **Office** ![Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions garage application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-garage.png?v=1697980834) **Garage** ![Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions metal buildings application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-metal-buildings.png?v=1697980834) **Metal Buildings** ## Full Technical Specifications Parameter Value Model D300 / MBD300gb Application Home, Office, Flat, Small Business Coverage Area Up to 300 m² Frequency Band Band 3 (1800 MHz) FDD LTE/GSM Supported Services 4G LTE Data + 2G GSM Voice Calls & SMS Uplink Frequency 1710 – 1785 MHz Downlink Frequency 1805 – 1880 MHz Uplink Gain (Gp) ≥ 60 dB Downlink Gain (Gp) ≥ 65 dB Max Output Power (Po) ≥ 20 dBm Simultaneous Users Up to 30 Supported Networks (2G+4G) EE, BT, ASDA, Virgin, Orange, T-Mobile, The People's Operator Supported Networks (4G only) Three, iD Mobile, Smarty, Plusnet Mobile, Freedom Pop Outdoor Antenna Yagi directional, 8 dBi Indoor Antenna Panel antenna, 5 dBi Cable Included 10 metres outdoor cable Minimum Antenna Separation 10 metres vertical Power Adapter AC 100V–240V 50/60Hz input, DC 5V output (UK Type G plug) Power Consumption ≤ 10 W Operating Temperature \-20°C to +60°C Certification UKCA / CE, Ofcom Licence-Exempt Expandable Yes — add extra indoor antennas for larger coverage Price £183.82 GBP ## What's in the Box Item Quantity Description D300 Booster Unit 1 Band 3 amplifier with LED status indicators Outdoor Yagi Antenna 1 8 dBi directional, weatherproof, mast-mount Indoor Panel Antenna 1 5 dBi, wall/ceiling mount UK Power Adapter 1 AC 100–240V → DC 5V, Type G plug Outdoor Cable 1 10 metres coaxial cable User Manual 1 Step-by-step installation guide ## How the D300 Works 1. **Receives:** The outdoor Yagi antenna captures weak Band 3 (1800 MHz) signal from the nearest EE/BT mast, mounted on the roof or exterior wall pointing towards the mast. 2. **Amplifies:** The D300 booster unit amplifies the signal by 60 dB (uplink) and 65 dB (downlink), filtering noise and interference. 3. **Broadcasts:** The indoor panel antenna rebroadcasts the boosted 4G and 2G signal throughout up to 300 m² of indoor space. 4. **Returns:** Uplink signals from phones and devices are amplified and sent back to the mast via the outdoor antenna. ## Compatible Buildings & Spaces Property Type Suitability Notes 3–4 Bedroom House Excellent Standard coverage for most UK homes 2–3 Bedroom Flat Excellent Indoor antenna in living area covers whole flat Small Office (up to 30 staff) Excellent 30 simultaneous user capacity Bungalow Excellent Single-storey, easy antenna routing Large 5+ Bedroom House Good May need second indoor antenna for full coverage Shop / Retail Unit Very Good Covers sales floor and back office Cafe / Restaurant Very Good Good for customer WiFi calling and staff phones Warehouse / Industrial Fair Metal walls reduce coverage; may need extra antennas ## Pros & Cons ### Advantages - **Band 3 1800 MHz:** Specifically optimised for EE, BT and ASDA networks — the most common 4G band in UK urban areas. - **4G data + 2G calls:** Boosts both mobile internet and voice calls/SMS simultaneously. - **300 m² coverage:** Ideal for 3–4 bedroom houses, large flats and small offices. - **30 simultaneous users:** Enough for a family or small office team. - **High gain (65 dB downlink):** Powerful amplification for areas with very weak outdoor signal (1–2 bars). - **≥20 dBm output:** Strong broadcast power for reliable coverage throughout the property. - **Expandable:** Add extra indoor antennas to cover larger areas or multiple floors. - **10m cable included:** Sufficient for most domestic installations from roof to living area. - **Ofcom legal:** Licence-exempt, UKCA/CE certified, automatic gain control. - **365-day returns:** Longest money-back guarantee in the market. ### Disadvantages - **Band 3 only:** Does NOT boost Band 8 (900 MHz) or Band 20 (800 MHz). O2/Vodafone 2G calls on Band 8 are not supported. - **Not for O2/Vodafone:** O2 and Vodafone primarily use Band 8 (900 MHz) for 2G and Band 20 (800 MHz) for 4G. The D300 will not improve their signal. - **Requires outdoor signal:** Must have 1–2 bars of Band 3 signal outside. Cannot create signal from nothing. - **10m antenna separation:** Outdoor and indoor antennas must be at least 10m apart vertically to prevent oscillation. This may be challenging in some flats. - **Standard delivery 10–15 days:** Not next-day delivery. - **No 5G support:** No consumer booster currently supports 5G. - **Professional installation recommended:** While DIY is possible, roof mounting and cable routing may require a handyman for some properties. - **Single band only:** If your phone uses multiple bands, only Band 3 is boosted. Phones may drop to other bands in weak areas. - **AC power required:** Needs a mains power socket near the booster unit. - **Three 4G only:** Three customers get 4G data but no 2G calls (Three has no 2G network). ## Supported Networks Detail Network 2G Calls/SMS 4G Data Notes EE Yes (Band 3) Yes (Band 3) Primary network, full Band 3 support BT Mobile Yes (Band 3) Yes (Band 3) Uses EE infrastructure ASDA Mobile Yes (Band 3) Yes (Band 3) Uses EE infrastructure Virgin Mobile Yes (Band 3) Yes (Band 3) Uses EE infrastructure (from 2024) Orange Yes (Band 3) Yes (Band 3) Legacy EE brand T-Mobile Yes (Band 3) Yes (Band 3) Legacy EE brand The People's Operator Yes (Band 3) Yes (Band 3) Uses EE infrastructure Three No (no 2G) Yes (Band 3) 4G data only, no 2G voice iD Mobile No (no 2G) Yes (Band 3) Uses Three infrastructure Smarty No (no 2G) Yes (Band 3) Uses Three infrastructure Plusnet Mobile No (no 2G) Yes (Band 3) Uses EE infrastructure Freedom Pop No (no 2G) Yes (Band 3) Uses Three infrastructure O2 No No (Band 20) O2 uses Band 8/20, not Band 3 Vodafone No No (Band 20) Vodafone uses Band 8/20, not Band 3 ## Installation Guide 1. **Find the signal:** Use your phone to find where outdoor Band 3 signal is strongest. Check the mast direction using the CellMapper app or Ofcom coverage checker. 2. **Mount outdoor antenna:** Install the Yagi antenna on the roof, chimney or exterior wall, pointing towards the nearest EE/BT mast. Use the included mast mount or brackets. Ensure it is at least 10m vertically from the indoor antenna. 3. **Route cable:** Run the 10m outdoor cable from the antenna through the wall or loft into the property. Use cable clips to secure. Avoid sharp bends (minimum 25mm radius). 4. **Connect booster:** Plug the outdoor cable into the "BS" port on the booster. Connect the indoor panel antenna to the "MS" port. 5. **Mount indoor antenna:** Place the indoor panel antenna on a wall or ceiling in the central area needing coverage, facing the usage area. 6. **Power on:** Plug the UK power adapter into a mains socket. The booster will calibrate automatically (10–15 seconds). 7. **Test:** Check signal bars on your phone. Run a speed test. Adjust antenna direction if needed. **Installation time:** 1–2 hours (DIY). **Tools needed:** Drill, masonry bits, ladder, cable clips, spanner. Professional installation recommended for roof work. ## Frequently Asked Questions ### Will the D300 work in my home? Yes, if you have EE, BT, ASDA, Virgin, Orange, T-Mobile, TPO, Three, iD, Smarty, Plusnet or Freedom Pop and at least 1–2 bars of outdoor Band 3 (1800 MHz) signal. The D300 covers up to 300 m², ideal for 3–4 bedroom houses, large flats and small offices. Check your band before buying. ### Does the D300 improve 4G data speed? Yes. The D300 boosts Band 3 (1800 MHz) 4G LTE data, significantly improving download and upload speeds in areas with weak outdoor signal. In our tests, 4G speeds improved from 0.5–2 Mbps to 10–30 Mbps after installation. Actual speed depends on your network's available bandwidth. ### Will it work with O2 or Vodafone? No. The D300 operates on Band 3 (1800 MHz), which is used by EE/BT/ASDA for 2G and 4G. O2 and Vodafone primarily use Band 8 (900 MHz) for 2G and Band 20 (800 MHz) for 4G. For O2/Vodafone, consider the Boost4U C-series (Band 20) or G-series (Band 8) boosters. ### How much area does the D300 cover? Up to 300 m² under ideal conditions (2+ bars outdoor signal, standard construction). Coverage may be reduced in properties with thick stone walls, metal roofing or multiple floors. You can expand coverage by adding extra indoor antennas (sold separately). ### Is the D300 legal to use in the UK? Yes. The D300 is Ofcom licence-exempt with UKCA/CE certification. It operates within Ofcom's power limits for 1800 MHz (≥20 dBm) and includes automatic gain control to prevent network interference. No licence is required. ### Do I need professional installation? DIY installation is possible if you're comfortable with roof work and drilling. The kit includes everything needed. However, for roof mounting, we recommend professional installation or a competent handyman. Typical professional installation costs £80–£150. ### What if I have 0 bars outside? The D300 cannot create signal from nothing. It requires at least 1–2 bars of outdoor Band 3 signal. If you have 0 bars everywhere around your property, no consumer booster will work. Contact your network provider to report a coverage blackspot. ### How much does the D300 cost? £183.82 GBP including the booster unit, outdoor Yagi antenna, indoor panel antenna, 10m cable, UK power adapter and user manual. Free UK shipping. 365-day money-back guarantee included. ### What is the return policy? The D300 comes with a 365-day money-back guarantee. If it does not improve your signal for any reason within 365 days, return it for a full refund (minus shipping costs). Most signal issues are resolved by repositioning the outdoor antenna. ### Can I add more indoor antennas? Yes. The D300 supports additional indoor panel antennas (sold separately) to extend coverage to multiple rooms or floors. Each additional antenna covers approximately 100–150 m². A splitter is required for multiple antennas. ## Related Blog Articles - [Best Mobile Signal Booster for EE UK 2025 — Comparison & Reviews](https://www.ukmobilebooster.com/en-gb/blogs/news/best-mobile-signal-booster-for-ee-uk-2025-complete-comparison-reviews-1) - [Boost4U D300 Review UK — 300m² 4G Booster Tested](https://www.ukmobilebooster.com/en-gb/blogs/news/boost4u-d300-review-uk-30-day-test-of-300m-ee-4g-signal-booster) - [How to Boost EE Signal at Home — 300m² Complete Guide](https://www.ukmobilebooster.com/en-gb/blogs/news/how-to-boost-ee-signal-at-home-300m-complete-guide-uk-2025) - [Band 3 1800MHz Signal Booster for EE BT ASDA UK](https://www.ukmobilebooster.com/en-gb/blogs/news/band-3-1800mhz-signal-booster-for-ee-bt-asda-uk-full-technical-guide) Tags: Mobile Signal Booster for EE 300m² UK buy EE mobile signal booster UK, best 4G signal booster for home 300m2, Band 3 1800MHz booster price UK, D300 booster buy, EE BT ASDA signal booster deal, cheap 300m2 mobile repeater UK, home signal booster for sale, Band 3 booster purchase UK, signal booster free shipping UK, Boost4U D300 discount, 300m2 4G booster under £200, mobile signal booster for office UK how to boost EE signal at home 300m2, why is EE signal bad in my house, home signal booster how it works, does 4G signal booster work, improve BT signal at home, mobile phone signal solution 300m2, Band 3 1800MHz explained, legal signal booster UK Ofcom, install home mobile booster step by step, EE WiFi calling vs signal booster, best way to get signal in large house, mobile signal for 3 bedroom house D300 vs D250 signal booster, best mobile signal booster vs repeater, home booster vs femtocell, EE signal booster comparison UK, Boost4U D300 vs alternatives, Band 3 vs Band 20 booster, 300m2 vs 500m2 booster, EE booster vs BT booster, portable booster vs fixed home booster, D300 review vs other boosters, best mobile signal booster for home UK 2025, signal booster for house vs flat D300 signal booster, EE mobile signal booster UK, Band 3 1800MHz booster, 300m2 signal repeater, BT ASDA 4G booster, Boost4U D300, home signal booster ## Details - **Price:** 183.82 GBP - 303.82 GBP - **Vendor:** UKMobileBooster.com - **Type:** United Kingdom - **Tags:** application 4G LTE Data & Voice Calls, application Voice Calls, coverage up to 300 sq metres, frequency 1800MHz, gb asda, gb bt, gb ee, gb gb, gb orange, gb t-mobile, gb The People's Operator, gb virgin, has_stock_countdown, provider 1p mobile, provider Asda, provider BT, provider EE, provider Orange, provider T-Mobile, provider The People's Operator, provider Virgin, sale ## Variants | Variant | Price | Available | |---------|-------|-----------| | No / No / No | 183.82 GBP | In stock | | No / No / Yes | 203.82 GBP | In stock | | No / Yes / No | 233.82 GBP | In stock | | No / Yes / Yes | 253.82 GBP | In stock | | 20 M / No / No | 203.82 GBP | In stock | | 20 M / No / Yes | 223.82 GBP | In stock | | 20 M / Yes / No | 253.82 GBP | In stock | | 20 M / Yes / Yes | 273.82 GBP | In stock | | 30 M / No / No | 213.82 GBP | In stock | | 30 M / No / Yes | 233.82 GBP | In stock | | 30 M / Yes / No | 263.82 GBP | In stock | | 30 M / Yes / Yes | 283.82 GBP | In stock | | 40 M / No / No | 223.82 GBP | In stock | | 40 M / No / Yes | 243.82 GBP | In stock | | 40 M / Yes / No | 273.82 GBP | In stock | | 40 M / Yes / Yes | 293.82 GBP | In stock | | 50 M / No / No | 233.82 GBP | In stock | | 50 M / No / Yes | 253.82 GBP | In stock | | 50 M / Yes / No | 283.82 GBP | In stock | | 50 M / Yes / Yes | 303.82 GBP | In stock | ## Images - A mobile signal booster kit including an outdoor antenna, indoor antenna, cables, and a remote control. Boost4U D300 EE Signal Booster | 300m² Band 3 1800MHz 4G | £183.82 - Man sitting on a couch using a smartphone with a blurred outdoor background UK Mobile Phone Signal Booster Improve Signal - Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions Mobile Signal Booster Panel Antenna - Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions Mobile Signal Booster Cable - Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions Mobile Signal Booster Whip Antenna - Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions Mobile Signal Booster Package - Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions Mobile Signal Booster Panel Antenna - Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions Mobile Signal Booster Whip Antenna - Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions Mobile Signal Booster Whip Antenna Improved Signal Up to 5 Bars - Mobile Signal Booster 4G LTE Booster EE Signal Booster BT Mobile Booster Asda Mobile Signal Indoor Coverage Booster Voice Call Enhancement UK Mobile Network Solutions Mobile Signal Booster 4G to WiFi --- > Source: [B4U](https://www.ukmobilebooster.com/products/d300-mobile-booster) > Updated: 2026-09-16