# Calls - Car Vehicle Caravan (Vivo/Sercomtel) Cell Phone Signal Booster ##### **Enhanced Call Quality** Experience crystal-clear voice calls with our signal booster, which enhances 2G, 3G, and 4G LTE signals for Vivo and Sercomtel networks. Whether you are in a remote area or a high-rise building, our device ensures that you can maintain seamless communication without any interruptions. ##### **Multi-Carrier Support** Our dual-band booster operates on both 850MHz and 1800MHz frequencies, making it suitable for a variety of carriers like Vivo, TIM, Claro, Oi, Nextel, and Algar. No matter who you’re with, everyone in your vehicle can enjoy improved connectivity and faster data speeds. ##### **Effortless Installation** With an all-in-one kit that includes an external aerial, cables, a power adapter, and a detailed installation manual, setting up your mobile booster is a breeze. Simply connect the components and enjoy superior cell reception without the headache of complicated processes. ##### **Universal Compatibility** Designed to accommodate various power adapters, including 220VAC and vehicle power options, our booster provides flexibility for on-the-go use. This means you can enjoy boosted signals whether you're at home or traveling in your car. Ideal for families or groups, our signal booster supports up to 15 users simultaneously. Everyone can make calls, send texts, and browse the web without experiencing lag or dropped connections, making it perfect for road trips or family outings. Environmentally Friendly Design Our mobile signal booster not only enhances your connectivity but also does so with low radiation output. When not in use, easily disconnect the device to minimize any potential radiation exposure, offering peace of mind while staying connected. It boost **Calls and 3G and 4G LTE** signal on 850MHz, 1800MHz frequency, the frequencies used in **Brazil** used by mobile networks to deliver their mobile services: 2G. It work on both 850Mhz (Band 5) & 1800MHz (Band 3) frequencies mainly used for improving Vivo and Sercomtel mobile carrier networks **Voice Calls & Text** signal. It also boost Sercomtel mobile carrier for improving **3G** signal, and boost Vivo, TIM, Claro, Oi, Nextel and Algar mobile carriers 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 Voice Calls, Texts and 3G**. The booster enhances cell signals is a low-cost amplifier that wirelessly enhances cell signals for cellular devices (smartphones, tablets, Kindle, etc). It provides stronger signals, longer battery life, and clear connections to your phone. This device will boost mobile providers' 2G and 3G 850MHz, and 2G and 4G LTE 1800MHz (Band 5/3) network signal. This system will provide coverage on both 850MHz, 1800MHz frequency **simultaneously**. It's Dual 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 **3G/4G Internet** Faster Uploads & Downloads **Multiple Users** 15 Simultaneously **Signal Wider Coverage** Vehicle Signal Booster * * * ### Upgrade External Aerial External fishtail aerial connects via 3 meter coax lead to the signal booster unit which is located inside the car. The aerial with **Three** magnets, its more stable. ![mobile phone signal booster for car vehicle Upgrade External Aerial of fishtail aerial bottom](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageFishtailAerialUpgradedBottom.webp?v=1600636900) ![mobile phone signal booster for car vehicle Upgrade External Aerial of fishtail aerial](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageFishtailAerial.webp?v=1600636899) * * * ### Features **1\. Convenient**\--- small beautiful appearance (cigarette box size), easy to carry, suitable for a variety of small space signal coverage. **2\. Easy to use**\--- needs no complicated installation. **3\. Open**\--- according to the external signal strength, automatic gain control ensure the signal. **4\. Flexible**\---- can choose different power adapters, such as 220VAC adapter, mobile power, vehicle power adapter etc. **5\. Low radiation**\--- a good signal coverage can reduce the radiation intensity of the mobile phone itself, effectively reduce the mobile phone radiation may harm the human body. **6\. Environmental protection**\--- when you do not need to use the telephone or the Internet, can be removed at any time or unplug the power, elimination of radiation. ![mobile phone signal booster for car vehicle 01](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageCV01.webp?v=1600636899) ![mobile phone signal booster for car vehicle 02](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageCV02.webp?v=1600636900) * * * ### Specification Application & Bands \[Car, Vehicle Voice Calls\] (Band 5, 3) Country Brazil **Boost All On** Vivo (2G & 4G) TIM (4G) Claro (4G) Oi (4G) Nextel (4G) Algar (4G) Sercomtel (3G) Users Supporting 15 Simultaneously Band Dual Band 5 & 3 Frequency 850MHz & 1800MHz Gain(dB) Uplink Gp≥45; Downlink Gp≥50 Up-link 824~849 MHz; 1710~1785 MHz Down-link 869~894 MHz: 1805~1880 MHz Export Power(Po) Uplink 10; Downlink 10 Power Adapter 5V DC Kit Includes 1 x Car Signal Booster/Amplifier 1 x External Magnetic-Mount Aerial 1 x 5V DC Car Power Adapter 1 x Easy to Follow Installation Manual **Warming Tips:** - Band Confirmation: This booster can boost signals on Band 5, or 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. ### **How It Works** ![how Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation work for Car Vehicle](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHIWcar-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. 1. Outside Antenna: Pulls in tower Signal. 2. Signal Booster: Amplifies the Signal. 3. Inside Antenna: Re-broadcasts Signal. 4. Mobile Phone: Gets Boosted Signal. ![how Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation work for Car Vehicle](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPagehowitworksvehicles.webp?v=1600636900) #### **Installation** 1. Mount external aerial on top back. 2. Install the booster and interior antenna. 3. External aerial connect to "BS" on the booster, and interior antenna connect to "MS". **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) ![how Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation work for Car Vehicle](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageCarVehicle02.webp?v=1600636900) ### **Application Scenarios** ![Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation vehicle car truck suv van application](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/application-vehicle-car.jpg?v=1698366474) ![Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation vehicle car truck suv van application](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/application-vehicle-truck.jpg?v=1698366474) ![Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation vehicle car truck suv van application](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/application-vehicle-suv.jpg?v=1698366473) ![Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation vehicle car truck suv van application](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/application-vehicle-van.jpg?v=1698366473) 1. What is the Car Vehicle Caravan Signal Booster? - The Car Vehicle Caravan Signal Booster is a device that enhances your mobile phone signal while you're in your vehicle. It works by capturing weak signals from cell towers and amplifying them, allowing you to make clearer calls and enjoy faster internet connections. 2. Why do I need a signal booster in my car? - You might need a signal booster if you often find that your phone calls get dropped or if the internet is slow while you're traveling. This device boosts your mobile signal, so you can stay connected without interruptions, whether you're making calls or sending texts. 3. Which mobile networks does this booster support? - This signal booster is designed to work with several mobile networks in Brazil, including Vivo, TIM, Claro, Oi, Nextel, Algar, and Sercomtel. It boosts signal for 2G, 3G, and 4G LTE, ensuring better connectivity no matter your carrier. 4. How many users can benefit from this booster at once? - The signal booster can support up to 15 users simultaneously. This means that multiple people in your vehicle can enjoy improved phone signals and fast internet connections at the same time! 5. How do I install the signal booster? - Installing the signal booster is simple! The kit comes with everything you need, including an external aerial, cables, and an easy-to-follow manual. You just need to connect the parts according to the instructions, and you're all set! 6. Can I use this booster if I don’t have a signal outside? - Unfortunately, the booster can only amplify existing signals. If there is no cell signal outside, the booster will not be able to work. So, it's important to have some signal to begin with. 7. What is the difference between 2G, 3G, and 4G signals? - 2G, 3G, and 4G refer to different generations of mobile technology. 2G allows for basic phone calls and texts, 3G offers better internet speeds, and 4G provides faster data for streaming and downloading. The signal booster helps improve all these types. 8. Is the signal booster harmful to my health? - No, the signal booster is designed to have low radiation levels. It actually helps reduce the radiation your phone emits by giving you a better signal, which means your phone doesn’t have to work as hard to connect. 9. What accessories come with the booster kit? - The booster kit includes everything you need for installation: the signal booster, an external magnetic-mount aerial, a 12V car power adapter, and a manual to guide you through the installation process. 10. How do I check which frequency my phone uses? - You can check your phone's frequency band by dialing \*3001#12345#\* on an iPhone and looking for the 'Freq Band Indicator' in 'Serving Cell Info'. You could also use apps like 'CellMapper' or 'Network Signal Info Pro'. TAGES: cell phone signal booster, Vivo mobile booster, Sercomtel signal enhancement, 4G LTE booster, 3G signal amplifier, dual band booster, vehicle signal booster, increase call clarity ## Details - **Price:** 259.99 GBP - 287.56 GBP - **Vendor:** UKMobileBooster.com - **Type:** Brazil - **Tags:** application vehicle, application Voice Calls, br br, frequency 850 1800MHz, has_stock_countdown, provider Sercomtel, provider Vivo ## Variants | Variant | Price | Available | |---------|-------|-----------| | No | 259.99 GBP | In stock | | Yes | 287.56 GBP | In stock | ## Images - Calls - Car Vehicle Caravan (Vivo/Sercomtel) Cell Phone Signal Booster - Car Vehicle Mobile Signal Booster Aerial - Mobile Signal Booster Package - Car Vehicle Mobile Signal Booster How It Works - Car Vehicle Mobile Signal Booster Best Installation - Car Vehicle Mobile Signal Booster - Car Vehicle Mobile Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/br-cvtd-mobile-booster) > Updated: 2026-09-02