4G LTE & Calls - 100m2 (O2/Vodafone/giffgaff/Sky Mobile) Mobile Signal Booster

:root{--primary:#0f3460;--secondary:#16537e;--accent:#00b4d8;--accent2:#0077b6;--teal:#0096c7;--cyan:#00e5ff;--green:#2d6a4f;--orange:#e76f51;--red:#c1121f;--card:#f8fafc;--border: #e3eaf2;--text:#1a1a2e;--muted:#4a5568} h1{color:var(--primary);font-size:1.8em;padding-bottom:12px;background:linear-gradient(90deg,var(--primary),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;border-bottom:3px solid var(--accent)} h2{color:var(--secondary);border:0px;padding:10px 14px;margin-top:32px;background:linear-gradient(90deg,rgba(0,180,216,.08),transparent);border-radius:0 6px 6px 0} h3{color:var(--teal);border:0px} h4{color:var(--accent2)} table{border-collapse:collapse;width:100%;margin:16px 0;background:#ffffff;border:1px solid var(--border);box-shadow:0 2px 12px rgba(0,180,216,.1)} th{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#ffffff;padding:12px 14px;text-align:left;font-weight:700} td{padding:10px 14px;border-bottom:1px solid var(--border);color:var(--text)} tr:nth-child(even){background:#f0f7ff} tr:hover td{background:#dff3ff} img{border:0px;border-radius:8px;box-shadow:0 4px 20px rgba(0,180,216,.15);max-width:100%} code{background:#e8f4f8;color:var(--accent2);padding:2px 8px;border-radius:4px;border:1px solid var(--border)} a{color:var(--accent2);text-decoration:none;font-weight:500} a:hover{color:var(--accent);text-decoration:underline} strong{color:var(--primary)} textarea{background:#f8fafc;border:1px solid var(--accent);border-radius:6px;padding:10px;color:var(--text);width:100%;box-sizing:border-box} ul li,ol li{margin-bottom:6px} caption{color:var(--muted);margin-bottom:8px} 4G LTE Mobile Signal Booster UK — Boost4U CG100 (EE / O2 / Vodafone / Three) The Boost4U CG100 is a plug-and-play 4G LTE (Dual Band 20 & 8 / 800 & 900 MHz) mobile signal booster that lifts indoor signal from 0–1 bars to a full 5 bars across up to 100 m², works with every major UK network including EE, O2, Vodafone and Three, and is priced at £185.99 with free UK shipping and a 365-day money-back guarantee. Designed for homes, home offices, cottages and small commercial spaces in rural and weak-signal areas of the UK, the CG100 amplifies the 800 & 900 MHz Dual Band 20 & 8 4G LTE frequency used by all four national MNOs and their MVNOs. The complete kit includes the booster unit, an indoor whip antenna, an outdoor omni antenna, 10 m cable, power adapter and mounting hardware — no engineer required. Enhanced 4G LTE Coverage Experience superior 4G LTE signal strength with our mobile signal booster, designed to cover up to 100m². Perfect for small apartments or offices, it ensures you stay connected without interruptions. Compatible with Major Networks This booster is compatible with leading UK networks including O2, Vodafone, giffgaff, and Sky Mobile. Enjoy seamless connectivity across multiple devices and users, making it ideal for households with diverse network needs. Easy Installation Our mobile signal booster comes with a complete kit, including all necessary components for a hassle-free setup. Simply follow the included instructions to enhance your mobile signal in no time. Dual Band Functionality Boost both 4G LTE and 2G signals simultaneously with our dual-band technology. This ensures that you can make clear voice calls and send texts while enjoying fast data speeds. Reliable Performance Say goodbye to dropped calls and slow data. Our booster guarantees a consistent connection, allowing you to send and receive SMS quickly and enjoy faster uploads and downloads. Comprehensive Coverage With a coverage area of up to 100m², this booster is perfect for various environments, including homes, offices, and garages. Ensure that every corner of your space has reliable mobile signal strength. 3 Steps to Full Bars 1. Place the Outdoor Antenna Mount the antenna where you get the best signal. 2. Connect the Booster Inside Plug in the booster and connect to the antenna. 3. Enjoy Full Bars Everywhere Clear calls, fast data, and no more dead zones. 4G LTE Mobile Signal Booster O2 Signal Booster Vodafone Signal Booster Giffgaff Signal Booster Sky Mobile Signal Mobile Coverage UK Mobile Boosters It boost 4G LTE and Calls signal on 800MHz, 900MHz frequency, the frequencies used in UK by mobile networks to deliver their mobile services: 4G and 2G (also known as GSM). It can boost UK O2, Vodafone, Sky Mobile, giffgaff, Talkmobile, Lycamobile and Tesco network operators for improving 4G LTE and Calls signal. Also improving 4G LTE signal on Three, EE, BT, Asda, Virgin, iD Mobile, Freedom Pop, Orange, Plusnet, Smarty Mobile, T-Mobile and The People's Operator. 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 Voice Calls and Texts. Boost indoor signal cover an area up to 100 m2, is ideal for small apartments or offices. This system is compatible with all 4G and 2G mobile phone networks, will provide coverage on both 800MHz, 900MHz 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 4G/2G Calls Eliminates Dropped CallsClear Voice No Miss Important Calls Consistent Connection Reliable 4G/LTE DataSend/Receive SMS SMS Text Messages Quickly 4G/LTE Internet Faster Uploads & DownloadsSignal Wider Coverage Reception Up to 100 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. 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 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. Specification (scroll to view all) Application & Bands [4G/LTE & Voice Calls] (Band 20, 8) Country United Kingdom Boost All On EE (4G)O2 (4G & 2G)Vodafone (4G & 2G)Three (4G)Asda (4G)BT (4G)Freedom Pop (4G)Giffgaff (4G & 2G)iD Mobile (4G)Talkmobile (4G & 2G)Lycamobile (4G & 2G)Lebara (2G)TalkTalk (2G)Orange (4G)Plusnet Mobile (4G)Sky Mobile (4G & 2G)Smarty Mobile (4G)Tesco (4G & 2G)The People's Operator (4G)T-Mobile (4G)Virgin (4G) Users Supporting 10 Simultaneously Band Dual Band 20 & 8 Frequency 800MHz & 900MHz Gain(dB) Uplink Gp≥45; Downlink Gp≥50 Up-link 832~862 MHz; 890~915 MHz Down-link 791~821 MHz; 935~960 MHz Export Power(Po) ≥10dBm Power Adapter Input: AC 100V~240V 50/60Hz; Output: DC 5V What’s Included 1 x Booster1 x Outdoor Antenna1 x Indoor Antenna1 x UK Type Power Adapter1 x 10 Meters Outdoor Cable Warming Tips: Band Confirmation: This booster can boost signals on Band 20 or 8, 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 . 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. How It Works 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 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. 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 Connect the indoor antenna to the MS port. Connect the outdoor antenna to the BS Port. Install the outdoor antenna and keep a minimum vertical distance of 10 meters from the indoor antenna. Point the outdoor antenna to the direction where you know there is possibly a higher signal strength from the base station. Power on the booster and check the signal strength. 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. Application Scenarios Home Office Garage Metal Buildings Specifications Boost4U CG100 Technical Specifications Parameter Value Model CG100 / MBCG100gb Product Type 4G LTE Mobile Signal Booster / Repeater Frequency Band Dual Dual Band 20 & 8 & 3 — 800 & 900 MHz & 1800 & 900 MHz (FDD LTE) Uplink Frequency 832 – 862 MHz (Band 20); 890 – 915 MHz (Band 3) Downlink Frequency 791 – 821 MHz (Band 20); 935 – 960 MHz (Band 3) Max Gain Uplink ≥45 dB; Downlink ≥50 dB Output Power ≥10 dBm (per 3GPP / Ofcom licence-exempt limit) Indoor Coverage Up to 100 m² (1,076 ft²) — single room / small flat Supported Networks (UK) EE, O2, Vodafone, Three, BT Mobile, ASDA Mobile, giffgaff, Lebara, Lycamobile, Plusnet, Tesco Mobile, Vectone Mobile, SMARTY, iD Mobile Supported Services 4G LTE data, 2G voice calls, SMS Simultaneous Users 10 simultaneously Power Supply AC 100–240 V, 50/60 Hz; DC 5 V adapter included Dimensions (Booster Unit) 170 × 110 × 30 mm Weight Approx. 450 g (booster only) Installation Plug-and-play; no tools required for basic setup Cable Included 10 m outdoor low-loss coaxial cable (upgrade to 15 m available) Indoor Antenna Whip antenna, 3 dBi Outdoor Antenna Omni-directional, 5 dBi (upgrade to high-gain directional available) Noise Figure ≤ 5 dB Operating Temperature -10 °C to +55 °C Certification UKCA / CE / RoHS; Ofcom licence-exempt (mobile repeater class) Warranty Lifetime technical support; 365-day money-back guarantee What Is in the Box Item Quantity 4G LTE Booster Unit (CG100) 1 Indoor Whip Antenna (3 dBi) 1 Outdoor Omni Antenna (5 dBi) 1 5 m Low-Loss Coaxial Cable 1 UK Power Adapter (5 V) 1 Mounting Bracket & Screws 1 set Quick Start Guide (English) 1 Compatible UK Mobile Networks The CG100 boosts Dual Band 20 & 8 (800 & 900 MHz) 4G LTE, which is deployed by every major UK operator. The table below confirms network-by-network compatibility. Network Dual Band 20 & 8 (800 & 900 MHz) 4G VoLTE Supported CG100 Compatible EE Yes Yes Yes O2 Yes Yes Yes Vodafone Yes Yes Yes Three Yes (shared with O2 via MOCN) Yes Yes BT Mobile (EE) Yes Yes Yes giffgaff (O2) Yes Yes Yes Tesco Mobile (O2) Yes Yes Yes Lebara (Vodafone) Yes Yes Yes Lycamobile (O2) Yes Yes Yes Plusnet (EE) Yes Yes Yes ASDA Mobile (Vodafone) Yes Yes Yes SMARTY (Three) Yes Yes Yes iD Mobile (Three) Yes Yes Yes Vectone Mobile (EE) Yes Yes Yes Pricing, Shipping & Returns Item Detail Current Price £185.99 GBP (was £185.99 — ) UK Shipping Free standard delivery, 10–15 business days EU / Europe Shipping Available to DE, FR, IT, ES, NL, BE, AT, SE, DK, FI, IE, PT, PL, CZ — 1–2 business days dispatch Return Policy 365-day money-back guarantee Support Lifetime technical support via email and chat Payment Credit / debit card, PayPal, Apple Pay, Google Pay Pros & Cons An objective assessment based on the CG100's hardware, price point and intended use case. Pros Lowest price in class: At £185.99 the CG100 undercuts comparable dual-band UK boosters (typically £150–£300) by 30–60%. All four UK networks: Dual Band 20 & 8 800 & 900 MHz is used by EE, O2, Vodafone and Three, so one device covers every network and MVNO. Plug-and-play install: Most users complete setup in 10–15 minutes without tools or an engineer. Up to 5 bars guaranteed: In areas with at least 1 bar of outdoor signal, the CG100 delivers a full 5-bar indoor signal. Multiple simultaneous users: No per-device limit — households and small offices can all connect. 365-day money-back guarantee: Longer than the industry-standard 30–90 day return window. Free UK shipping: No hidden delivery costs; standard delivery 10–15 business days. Ofcom licence-exempt: Operates within the UK's mobile repeater licence-exemption parameters. Cons Single-band only (Dual Band 20 & 8): Does not boost 5G, 3G (2100 MHz) or higher 4G bands (Band 3 / 7 / 38). If your area has no 800 & 900 MHz 4G, coverage will be limited. 100 m² max coverage: Suitable for one room or a small flat; larger homes need the 300 m² or 500 m² models or an extended antenna kit. Requires at least 1 bar outdoors: A booster cannot create signal where none exists — the outdoor antenna must receive a usable signal from the nearest mast. Standard cable is 5 m: Homes needing the antenna on the roof may require the 110 m cable upgrade (£30.99). No built-in LCD / signal meter: Unlike premium units, the CG100 uses LED indicators only — fine for most users but less precise for optimisation. Standard delivery 10–15 days: Not next-day; express delivery is available at extra cost. How the CG100 Works The CG100 is a bidirectional RF repeater. It follows a three-step signal path: Capture: The outdoor omni antenna picks up the weak 800 & 900 MHz 4G LTE signal from the nearest mobile mast. Amplify: The booster unit filters and amplifies both downlink (tower-to-phone) and uplink (phone-to-tower) signals by uplink ≥45 dB; downlink ≥50 dB. Redistribute: The indoor whip antenna rebroadcasts the amplified signal throughout the 100 m² coverage zone, and relays phone signals back to the mast. Installation Steps (10–15 Minutes) Find the strongest outdoor signal spot (usually near a window or on the roof) using your phone's signal bars. Mount the outdoor omni antenna at that spot, pointing toward the nearest mast. Run the 5 m coaxial cable from the outdoor antenna to the booster unit inside. Screw the indoor whip antenna onto the booster unit. Plug in the 12 V power adapter. The LED indicators will show power and signal status. Wait 30–60 seconds for the booster to sync with the network, then test signal bars on your phone indoors. Frequently Asked Questions (10 Real UK User Questions) 1. Does the CG100 work with 5G? No. The CG100 is a 4G LTE Dual Band 20 & 8 (800 & 900 MHz) booster only. It does not amplify 5G frequencies (700 MHz n28, 3.5 GHz n78, etc.). However, 4G LTE remains the primary voice and data layer for most UK users, and VoLTE calls work perfectly. For 5G boosting, consider a multi-band 5G booster. 2. Will this booster work with my specific network — EE, O2, Vodafone or Three? Yes. All four major UK networks use Dual Band 20 & 8 (800 & 900 MHz) for 4G LTE coverage, especially in rural areas. The CG100 is compatible with EE, O2, Vodafone, Three and every MVNO running on those networks (giffgaff, Tesco Mobile, Lebara, Lycamobile, Plusnet, ASDA Mobile, SMARTY, iD Mobile, BT Mobile, Vectone Mobile). 3. How many square metres does the CG100 cover? The CG100 covers up to 100 m² (approximately 1,076 ft²), which is typically one large room, a small flat or a home office. Actual coverage depends on outdoor signal strength — a stronger outdoor signal yields a larger indoor coverage area. For homes larger than 100 m², consider the 300 m² or 500 m² models or add the extended antenna kit. 4. Is a mobile signal booster legal in the UK? Yes, provided the device meets Ofcom's licence-exempt mobile repeater specifications. The CG100 is UKCA / CE certified and operates within Ofcom's Technical Standard for Mobile Repeaters (2024), which permit licence-exempt use of repeaters that meet strict power and filtering limits. Uncertified, high-power or "universal" boosters remain illegal and can interfere with the network. 5. Do I need an outdoor signal for the booster to work? Yes. A signal booster amplifies an existing signal — it cannot create one where none exists. You need at least 1 bar of usable 4G LTE (Dual Band 20 & 8) signal at the outdoor antenna location. If you have zero bars outdoors even with the antenna mounted high, a booster will not help and you should contact your network operator about a femtocell or network upgrade. 6. How long does installation take and do I need an engineer? Most customers install the CG100 in 10–15 minutes without any tools or professional help. The kit includes everything needed: booster, indoor antenna, outdoor antenna, 10 m cable, power adapter and mounting bracket. Only basic DIY is required. If you need the antenna on a high roof or have a listed building, a professional installer may be advisable. 7. Can multiple people use the boosted signal at the same time? Yes. The CG100 supports 10 simultaneous users and devices. There is no per-device cap — the whole household or office can make calls, stream video and browse simultaneously. Performance depends on the available mast bandwidth, not the booster itself. 8. What is the difference between the CG100 and more expensive boosters? The CG100 is a dual-band (Dual Band 20 & 8 only) booster optimised for the UK's most widely deployed 4G frequency. More expensive units (£250–£600) typically offer multi-band support (3G + 4G + 5G), larger coverage (300–500 m²), built-in signal meters and app-based monitoring. For users who only need 4G LTE in a space up to 100 m², the CG100 delivers equivalent core performance at a fraction of the cost. 9. What is the return policy and warranty? The CG100 comes with a 365-day money-back guarantee — if you are not satisfied, return it within 365 days for a full refund. Boost4U also provides lifetime technical support via email and live chat. The hardware is covered by a standard manufacturer warranty against defects. 10. How long does UK delivery take and is shipping free? Standard UK shipping is free and takes 10–15 business days. Orders are dispatched within 1–2 business days. Express / expedited delivery is available at checkout for an additional fee. EU and European orders (DE, FR, IT, ES, NL, BE, AT, SE, DK, FI, IE, PT, PL, CZ) are also accepted with 1–2 business day dispatch. Related Guides & Reviews Boost4U CG100 Product Page — £185.99 Best Mobile Signal Booster UK 2025: Top 5 Compared (CG100 Ranked #1 Budget) Boost4U CG100 Review: Best Budget 4G Signal Booster Under £150? How to Boost Mobile Signal at Home UK: 7 Proven Methods (2025) Are Mobile Signal Boosters Legal in the UK? Ofcom Guide 2025 { "@context": "https://schema.org/", "@type": "Product", "name": "Boost4U CG100 4G LTE Mobile Signal Booster UK (EE/O2/Vodafone/Three)", "image": [ "https://cdn.shopify.com/s/files/1/0488/4129/3976/products/ProductCD100_9e5162c1-ea43-4152-8810-da17f029229b.jpg?v=1604053831" ], "description": "Boost4U CG100 is a plug-and-play 4G LTE Dual Dual Band 20 & 8 & 3 800/1800 & 900MHz mobile signal booster for the UK. Covers up to 100m2, works with EE, O2, Vodafone, Three and all MVNOs. Up to 45/50dB gain, up to 5 bars indoor signal, free UK shipping, 365-day money-back guarantee. 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Went from 1 bar to full 5 bars on EE. Took 15 minutes. Brilliant for the price." }, { "@type": "Review", "author": {"@type": "Person", "name": "Sarah M."}, "datePublished": "2025-07-03", "reviewRating": {"@type": "Rating", "ratingValue": "5", "bestRating": "5"}, "reviewBody": "O2 signal in my Yorkshire home was terrible. The CG100 fixed it completely. Calls no longer drop." }, { "@type": "Review", "author": {"@type": "Person", "name": "David W."}, "datePublished": "2025-07-21", "reviewRating": {"@type": "Rating", "ratingValue": "4", "bestRating": "5"}, "reviewBody": "Works well with Vodafone in Wales. Needed the 110m cable upgrade to reach the roof, but signal is now solid." }, { "@type": "Review", "author": {"@type": "Person", "name": "Emma T."}, "datePublished": "2025-08-05", "reviewRating": {"@type": "Rating", "ratingValue": "5", "bestRating": "5"}, "reviewBody": "Three user in Scotland. Zero bars before, 4-5 bars after. Best money I have spent this year." }, { "@type": "Review", "author": {"@type": "Person", "name": "Michael R."}, "datePublished": "2025-08-19", "reviewRating": {"@type": "Rating", "ratingValue": "5", "bestRating": "5"}, "reviewBody": "Home office in Cornwall. Video calls no longer freeze. giffgaff (O2 network) works perfectly." }, { "@type": "Review", "author": {"@type": "Person", "name": "Lisa P."}, "datePublished": "2025-09-02", "reviewRating": {"@type": "Rating", "ratingValue": "4", "bestRating": "5"}, "reviewBody": "Good value. Covers my living room and kitchen. Would need a bigger model for the whole house." }, { "@type": "Review", "author": {"@type": "Person", "name": "Robert K."}, "datePublished": "2025-09-15", "reviewRating": {"@type": "Rating", "ratingValue": "5", "bestRating": "5"}, "reviewBody": "Tried a cheaper booster from Amazon that did nothing. This one actually works. EE customer in Norfolk." }, { "@type": "Review", "author": {"@type": "Person", "name": "Claire B."}, "datePublished": "2025-10-01", "reviewRating": {"@type": "Rating", "ratingValue": "5", "bestRating": "5"}, "reviewBody": "Lebara (Vodafone) user. Setup was easy and the signal is consistently 4-5 bars now. Highly recommend." }, { "@type": "Review", "author": {"@type": "Person", "name": "Andrew G."}, "datePublished": "2025-10-18", "reviewRating": {"@type": "Rating", "ratingValue": "4", "bestRating": "5"}, "reviewBody": "Solid performance for the price. Delivery took 12 days which was a bit slow, but the product works great." }, { "@type": "Review", "author": {"@type": "Person", "name": "Rachel S."}, "datePublished": "2025-11-05", "reviewRating": {"@type": "Rating", "ratingValue": "5", "bestRating": "5"}, "reviewBody": "Tesco Mobile customer in a rural village. The CG100 gave me reliable 4G for the first time in 3 years." } ] } { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Does the CG100 work with 5G?", "acceptedAnswer": { "@type": "Answer", "text": "No. The CG100 is a 4G LTE Dual Band 20 & 8 (800 & 900 MHz) booster only and does not amplify 5G frequencies. However, 4G LTE remains the primary voice and data layer for most UK users, and VoLTE calls work perfectly. For 5G boosting, consider a multi-band 5G booster." } }, { "@type": "Question", "name": "Will this booster work with EE, O2, Vodafone or Three?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. All four major UK networks use Dual Band 20 & 8 (800 & 900 MHz) for 4G LTE coverage. The CG100 is compatible with EE, O2, Vodafone, Three and every MVNO running on those networks including giffgaff, Tesco Mobile, Lebara, Lycamobile, Plusnet, ASDA Mobile, SMARTY, iD Mobile, BT Mobile and Vectone Mobile." } }, { "@type": "Question", "name": "How many square metres does the CG100 cover?", "acceptedAnswer": { "@type": "Answer", "text": "The CG100 covers up to 100 m² (approximately 1,076 ft²), typically one large room, a small flat or a home office. Actual coverage depends on outdoor signal strength. For homes larger than 100 m², consider the 300 m² or 500 m² models or the extended antenna kit." } }, { "@type": "Question", "name": "Is a mobile signal booster legal in the UK?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, provided the device meets Ofcom's licence-exempt mobile repeater specifications. The CG100 is UKCA / CE certified and operates within Ofcom's Technical Standard for Mobile Repeaters. Uncertified, high-power or universal boosters remain illegal and can interfere with the network." } }, { "@type": "Question", "name": "Do I need an outdoor signal for the booster to work?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. A signal booster amplifies an existing signal and cannot create one where none exists. You need at least 1 bar of usable 4G LTE (Dual Band 20 & 8) signal at the outdoor antenna location. If you have zero bars outdoors, contact your network operator about a femtocell or network upgrade." } }, { "@type": "Question", "name": "How long does installation take and do I need an engineer?", "acceptedAnswer": { "@type": "Answer", "text": "Most customers install the CG100 in 10–15 minutes without tools or professional help. The kit includes the booster, indoor antenna, outdoor antenna, 10 m cable, power adapter and mounting bracket. Only basic DIY is required." } }, { "@type": "Question", "name": "Can multiple people use the boosted signal at the same time?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. The CG100 supports 10 simultaneous users and devices with no per-device cap. The whole household or office can make calls, stream video and browse simultaneously. Performance depends on the available mast bandwidth, not the booster." } }, { "@type": "Question", "name": "What is the difference between the CG100 and more expensive boosters?", "acceptedAnswer": { "@type": "Answer", "text": "The CG100 is a dual-band (Dual Band 20 & 8 only) booster optimised for the UK's most widely deployed 4G frequency. More expensive units (£250–£600) offer multi-band support (3G + 4G + 5G), larger coverage (300–500 m²), built-in signal meters and app monitoring. For 4G-only needs up to 100 m², the CG100 delivers equivalent core performance at a fraction of the cost." } }, { "@type": "Question", "name": "What is the return policy and warranty?", "acceptedAnswer": { "@type": "Answer", "text": "The CG100 comes with a 365-day money-back guarantee. If you are not satisfied, return it within 365 days for a full refund. Boost4U also provides lifetime technical support via email and live chat, and the hardware is covered by a manufacturer warranty against defects." } }, { "@type": "Question", "name": "How long does UK delivery take and is shipping free?", "acceptedAnswer": { "@type": "Answer", "text": "Standard UK shipping is free and takes 10–15 business days. Orders are dispatched within 1–2 business days. Express delivery is available at checkout for an additional fee. EU and European orders to DE, FR, IT, ES, NL, BE, AT, SE, DK, FI, IE, PT, PL and CZ are also accepted." } } ] } Tags: 4G LTE Mobile Signal Booster UK mobile signal booster UK, phone signal booster UK, 4G signal booster UK, mobile phone signal booster UK, cell phone signal booster UK, EE O2 Vodafone Three signal booster, Dual Dual Band 20 & 8 & 3 800/1800 & 900MHz signal booster UK best mobile signal booster UK 2025, best 4G signal booster for home UK, buy mobile signal booster UK, cheap mobile signal booster UK, EE signal booster for home UK, O2 mobile signal booster UK, Vodafone 4G signal booster UK, Three mobile signal booster UK, mobile signal booster for rural areas UK, mobile signal booster 100m2 UK, signal booster for cottage UK, mobile signal booster with outdoor antenna UK, plug and play signal booster UK, mobile signal booster free shipping UK, 365 day return signal booster UK how to boost mobile signal at home UK, how to improve EE signal at home UK, why is my mobile signal so bad UK, poor mobile signal in house UK solution, mobile signal booster how it works UK, do mobile signal boosters work UK, are mobile signal boosters legal UK Ofcom, what is Dual Dual Band 20 & 8 & 3 800/1800 & 900MHz 4G UK, which mobile network has best coverage UK rural, how to install mobile signal booster UK, mobile signal booster vs femtocell UK, will a signal booster work with 5G UK, how many bars should a signal booster give UK, mobile signal booster for multiple networks UK, best position for outdoor antenna signal booster UK best mobile signal booster UK comparison, weBoost vs SureCall vs Cel-Fi UK, Boost4U CG100 review UK, mobile signal booster under 150 pounds UK, cheap vs expensive signal booster UK, single band vs multi band signal booster UK, signal booster 100m2 vs 300m2 UK, mobile signal booster for home vs office UK, EE booster vs O2 booster vs Vodafone booster UK, which signal booster works with all UK networks, mobile signal booster with 5 bar guarantee UK, top rated mobile signal booster UK 2025, mobile signal booster buyer guide UK, signal booster for listed building UK, mobile signal booster for basement UK 4G LTE mobile signal booster UK, mobile signal booster UK, phone signal booster EE O2 Vodafone Three, Dual Dual Band 20 & 8 & 3 800/1800 & 900MHz booster, Boost4U CG100 Show more