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BD-400FG Repeater for LTE and GSM Signals

Image BD-400FG Repeater for LTE and GSM Signals
Image BD-400FG Repeater for LTE and GSM Signals
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Download Datasheet How to install mobile repeater

Indoor coverage: 4400 ft²

2 Band
In stock
  • Nikrans BD-400FG,
  • indoor ceiling antenna with 5m cable,
  • outdoor log-periodic antenna + 15m cable,
  • power supply,
  • manual
Indoor cable:
Outdoor cable:
Lightning protection:
Shipping (3-7 business days) to United Kingdom
Total: £340
No registration required
  • 5-step pre-delivery check
  • 30-DAY return policy
  • 3-YEAR warranty & service
  • Secure payments

Compatible with operators in the UK and Worldwide

For more than 10 years, our boosters have been helping people in the UK, European Union, Asia, and Africa to successfully solve their mobile signal issues. We are doing our best to follow all the latest tech trends to meet the demands of users in different regions. If you want to choose the best model for you, just contact us and we will help to find a booster that will be compatible with operators in your country!

Choose the most convenient way to communicate with our experts.


Nikrans BD-400FG is a reliable mobile signal booster that is designed to fight with issues with voice services and mobile internet connection. It is possible thanks to the capacity of the device to work with the signals of several types at the same time. The booster is able to increase the quality of your 4G and GSM network connection simultaneously. The configuration of the device allows everyone to install all the elements of the amplifier quickly and easily. It means that even if you have no tech experience you still shouldn’t be afraid to buy this repeater. You will easily cope with its installation.

The area that can be covered with the improved signal distributed by BD-400FG reaches 400 m² and it is sufficient for strengthening the signal in private houses of different types, supermarkets, some office buildings, warehouses, etc. For covering such an area with the stabilized signal, you do not need to purchase any additional antennas. All that is required is already included in the standard set.

As the Nikrans BD-400FG model is intended for working with GSM and 4G/LTE signals, it is compatible with two frequency bands. They are 900 MHz and 700 MHz. These frequencies are used by the majority of services providers in the European countries which means that this device can be a good option for many people in different parts of the region.

The booster can send the amplified signal to an unlimited number of mobile devices within its coverage area.

BD-400FG for 4G and GSM signals is one of the most highly-demanded models today as it is a practically universal solution and is able to satisfy the requirements of very wide circles of users. A rich list of benefits is another factor that contributes to its popularity.

  • Booster display. The booster box is enriched with an LCD screen. During the process of installation, it will show useful recommendations for you that will help you to fix the antennas at the right locations. When the booster is switched on, you can find crucial parameters related to the network state.
  • Attractive price. In our online store, you can find the best prices for our high-quality devices. Moreover, we regularly provide special offers for our customers.
  • Support of numerous connections. The device sends the amplified signal to an unlimited number of smartphones at the same time.
  • Excellent support service. If you need any help, our support managers are always ready to answer your questions.

BD-400FG is a reliable booster that can help you to ensure a stable connection at your home or in the office even if the area is poorly covered by the signal transmitted by your operator.


Coverage: 4400 ft²
Up-link freq: 703-733 , 880-915
Down-link freq: 758-788 , 925-960
Up-link Gain: 68 dB
Down-link Gain: 72 dB
Power Output: 22 dBm
Working t °C: -25/+55 °C
IP-Code: IP44
Humidity: 5 - 95%
Size (mm): 120*106*25mm
Booster Weight: 0.45 kg
Energy Consumption: 0,004 kW/h
Power supply: AC110-240, DC6V, 2A
Model Year: 2023
Download Manual Download Datasheet

How it works

Nikrans BD-400FG is designed by the best engineers in such a way that will allow everyone to install the device quickly and easily, without any particular issues. The booster set includes several key elements, each of which has its unique function.

The booster box itself is the key one that is intended for amplifying the signal. The signal transmitted by the operator should be caught by the outdoor antenna while the improved signal is sent by the indoor antenna. It is important to install and to connect all the elements correctly. Otherwise, the quality of the amplified signal can be spoilt.

To facilitate the installation process for you, we’ve prepared a detailed user’s Guide that includes all the necessary step-by-step instructions. Nikrans BD-400FG is very easy to use. All the settings and adjustments are done automatically.

If you have any questions about this model or you want to learn more about our other devices, you can contact us without any hesitation!

Customer Reviews

Leave a review


United Kingdom
Verified Buyer

BD-400FG: My Ultimate Signal Strength Companion

BD-400FG Repeater for LTE and GSM Signals

I needed a solution for my poor cell phone coverage and was hesitant if such a solution as the mobile phone signal booster would actually solve my issue. I called the mobile-signal-boosters.shop and support specialist helped me decide on a model.

I ordered and when it arrived I was surprised at the clear installation instructions. They were easy to follow and I was up and running quickly. Once installed and powered up I immediately noticed a significant signal indication on my phone. After making a few test calls I was thrilled to discover that my phone conversations were clear with no dead spots. Now i no longer have to go outside reset my phone just to send a txt or make a call. Easy to set up and install.

In addition to phone calls I need stable 4G internet. And BD-400FG works great for LTE signal.

I can now make calls (and even scroll the internet) without any drops or unevenness. Look no further, I have tried 2 other boosters and none of them were as effective as BD-400FG. I highly recommend this product!


United Kingdom
Verified Buyer

My BD-400FG Signal Booster Review

BD-400FG Repeater for LTE and GSM Signals

Living in an area with subpar internet speeds, we were on the hunt for a viable alternative. Fortunately, our search led us to mobile-signal-boosters.shop, and after a helpful chat with their customer service representative, we were convinced that the BD-400FG signal booster was the perfect fit for our needs.

Setting up the BD-400FG proved to be a breeze. What stood out to us was the inclusion of an informative and intuitive screen on the booster unit. This screen displayed real-time technical parameters, giving us better insights into the booster's performance. However, we advise allocating a few hours to ensure all the cables are routed precisely where you want them. The effort was well worth it, though, as the results left us impressed.

The true highlight of our experience has been the exceptional service provided by the BD-400FG signal booster. We now harness the power of 4G from the outside, seamlessly broadcasting a strong and reliable connection throughout our home. Finally, we can enjoy the luxury of a robust internet connection, enhancing our daily tasks and online activities.

Two essential factors to consider when opting for the BD-400FG are the location of the strongest outside signal around your home and selecting the appropriate booster size based on your home's dimensions. Taking these into account ensures optimal performance and satisfaction.

To sum it up, the BD-400FG signal booster from mobile-signal-boosters.shop has exceeded our expectations, providing us with the connectivity we've been longing for. If you find yourself in a similar situation, do not hesitate to invest in this incredible device. A world of enhanced connectivity and seamless internet awaits you!

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Fed up with poor mobile phone signal? We have a solution to your problem!

All you need to do is to get in touch with our qualified managers and you will forget about network problems once and for all!

[email protected],    +448000698689 (Sales),    Sales Chat

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