Calls & 3G & 4G LTE - 250m2 (Three/Oister) Mobile Signal Booster
Comprehensive Signal Boosting
The DK-GDW250 Mobile Signal Booster amplifies **All Calls, All 3G & 4G LTE** signals across key frequencies - 900MHz, 1800MHz, and 2100MHz. Whether you're on Three, Oister, or any supported network in Denmark, this device enhances your connection for reliable voice calls and fast data services.
Enhanced Voice Clarity
Experience crystal-clear voice communication with 4G Calling. When in a 4G area, your phone can leverage Voice over LTE (VoLTE) capabilities, ensuring no more garbled conversations or missed important calls. Stay connected seamlessly with dependable clarity.
Wider Coverage Area
This mobile signal booster effectively covers an indoor area of up to **250 m²**. Ideal for homes, cafes, pubs, and more, it ensures consistent and strong signal reception for multiple users, allowing everyone to enjoy uninterrupted service.
Rapid SMS & Data Performance
Say goodbye to delays with our booster that enhances not just voice calls but also speeds up SMS and data transmission. Enjoy faster uploads and downloads, supporting a smooth online experience without interruptions.
User-Friendly Installation Kit
The complete kit includes everything you need for straightforward installation: external aerial, cables, booster unit, and power adapter. Each component is carefully selected to ensure easy setup, making boosting your signal a breeze.
Upgrade Options for Custom Needs
Tailor your signal boosting solution with optional upgrades! Choose a higher gain antenna for improved performance or a lightning surge protector for enhanced durability. Adapt your system to your unique environment for optimal signal strength.
It boost All Calls, All 3G & 4G/LTE signal on 900MHz, 1800MHz, 2100MHz frequencies, the frequencies used in Denmark used by mobile networks to deliver their mobile services: 2G (also known as GSM), 3G, 3.5G (also known as HSDPA provides faster data rates than 3G) and 4G. It can boost all networks on Three, TDC, Telenor, Telia, Cbb Mobil, Vectone Mobile, Lycamobile, Oister, Lebara and One Mobile for improving Voice Calls & 3G signal. It also can boost all network on Three and Oister 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 3G. 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.
The system unlike other kits, this device will boost ALL networks including 2G, 3G, 4G and 4G Calling, is designed for universal mobile voice calls, 3G and 4G coverage. The solution will provide coverage on all 900MHz, 1800MHz, 2100MHz networks simultaneously. It's Tri Band booster and is an ESSENTIAL if many people in the same household are on different mobile phone networks!
No Miss Important Calls
Wow 2G/3G/4G Calls
Eliminates Dropped Calls
Battery Life
Get Longer On Your Phone
SMS Text Messages Quickly
Consistent Connection
Reliable 3G/4G Data
Seamless Switching
Back to Normal Network
Reception Up to 250 sq.m.
3G/4G Internet
Faster Uploads & Downloads
Multiple Users
25 Simultaneously
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
Application & Bands | [Voice Calls & 3G & 4G LTE] (Band 8, 3, 1) |
Country | Denmark |
Boost All On | Three (2G & 3G & 4G) TDC (2G & 3G) Telenor (2G & 3G & 4G) Telia (2G & 3G & 4G) Cbb Mobil (2G & 3G & 4G) Lebara Mobile (2G & 3G) Lycamobile (2G & 3G) Oister (2G & 3G & 4G) One Mobile (2G & 3G) Vectone Mobile (2G & 3G & 4G) |
Users Supporting | 25 Simultaneously |
Band | Tri Band 8 & 3 & 1 |
Frequency | 900 & 1800 & 2100MHz |
Gain(dB) | Uplink Gp≥55; Downlink Gp≥60 |
Up-link | 890~915 MHz; 1710~1785 MHz; 1930~1990 MHz |
Down-link | 935~960 MHz; 1805~1880 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 |
Expandable coverage by adding a second indoor antenna if the outside signal is strong.

2 Indoor Antennas

3 Indoor Antennas

4 Indoor Antennas

10 Indoor Antennas
Custom your solution:
2 Way Splitter | 3 Way Splitter | 4 Way Splitter | Indoor Cable | Indoor Antenna
How It Works

1
The powerful antenna reaches out to access a voice and 3G, 4G, and LTE data signal, and delivers it to the booster
2
The booster receives the signal, amplifies it, and serves as a relay between your phone and the nearest cell tower.
3
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
- What is a mobile signal booster? - A mobile signal booster is a device that helps improve phone signals in areas where reception is weak. It takes the existing outside signal, amplifies it, and sends it indoors, so you can make calls and use the internet more easily. This is especially helpful in homes or buildings that may block signals.
- How does the 250m2 mobile signal booster work? - The 250m2 mobile signal booster improves signals for all major networks by using frequencies like 900MHz, 1800MHz, and 2100MHz. It picks up weak signals from outside, boosts them, and spreads the enhanced signal throughout an area of up to 250 square meters, making it great for homes, cafes, and more!
- Which phone networks does this booster support? - This booster works with several networks in Denmark, including Three, TDC, Telenor, Telia, Cbb Mobil, Lycamobile, Oister, and Lebara. So, whether you are making calls or using mobile internet, this booster has you covered!
- Can I use this booster if I have a 4G LTE phone? - Yes! If you have a 4G LTE phone and are in an area with 4G coverage, this booster will enhance your ability to make clear voice calls and access fast internet. Even if you are not in a 4G area, you can still use 3G connectivity.
- How many users can connect to this booster at once? - The 250m2 mobile signal booster can support up to 25 users simultaneously. So, if you have family or friends over, everyone can benefit from a stronger signal at the same time!
- What happens if there is no signal outside? - It's important to know that a mobile signal booster cannot create a signal; it can only amplify the signal that is already there. If there is no signal available outside, the booster will not work.
- Is it easy to install the mobile signal booster? - Yes, the installation is quite simple! The kit comes with everything you need, including antennas and cables, so you don’t need to worry about having any extra parts. Just follow the instructions, and you’ll be up and running in no time!
- What is the upgrade option for external cables? - If the standard 10-meter external cable is too short for your area, you can upgrade to a longer cable. This ensures you can place the outdoor antenna in a location where it can receive the best signal.
- What is a Lightning Surge Protector? - A Lightning Surge Protector helps keep your mobile signal booster safe from damage caused by lightning. It's easy to install and protects your equipment from high amperage surges, ensuring that your booster lasts longer.
- What devices do I need to check if the booster will work for me? - To check if the booster will work for you, you can use your iPhone by dialing *3001#12345#* and checking the 'Freq Band Indicator' in 'Serving Cell Info'. Alternatively, you can use apps like 'CellMapper' or 'Network Signal Info Pro' to determine the signal strength in your area.
