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How does a mobile phone repeater work?

A mobile phone repeater is a professional device that catches mobile signals from nearby tower, boosting and broadcasting them within the coverage area. The device is bi-directional which has 2 added benefits. On the one hand, it works to improve your signal reception. On the other hand, it amplifies the signal sent from your smartphone to the provider`s tower. The primary purpose of using a signal booster is to improve network coverage for faster 3G and 4G/LTE Internet streaming, social media and browsing as well as GSM voice calls. For more details, please visit the How Mobile Amplifiers Work page.

How many mobile and 3G connections can a mobile phone repeater support at the same time?

Starting from as few as 5, there is really no limit to the amount of smartphones and 3G, 4G/ LTE network connections that can be amplified at the same time, but with our recent tests with an LCD-300 GD, you can support over 100 smartphones simultaneously. It doesn’t matter whether you are using an iPhone, Samsung Galaxy S7, S8, Huawei, LG or a Motorola smartphone, you will always receive the best coverage using our signal boosters. The only condition to be able to benefit from amplified signal is not to move out from the coverage area.

Is it safe to use a mobile phone repeater?

We understand that our customers are very concerned about their health and safety by using these signal boosters. We also understand that many consumers think that these devices emit harmful radiation. However, the fact is that by using a signal booster, you can significantly reduce the level of harmful radiations of your smartphone. Moreover, every mobile phone repeater from our online store meets the international health and safety standards of CE and RoHS.

Why should I buy from your online store?

Since 2001, we have developed our reputation as being one of the leading marketplaces with safe and reliable mobile phone solutions. Mobile Signal Boosters presents you time-tested and completely safe devices that can be used by multiple smartphones and Android tablets simultaneously. With every sale from our online platform, comes a 3-year warranty as well as excellent customer service that will never leave you out in the cold. We offer our customers the opportunity to return the ordered products within 30-day period, which means that we are confident in what we are selling.

We also have a reliable return policy in case if our signal repeater does not work as per specifications. We invite you to study Here the full list of advantages that you get when you order from us.

Choosing a Booster

How do I know which mobile phone repeater is the best for my house?

Smartphone signal repeater models vary depending on coverage, capacity, dBs, and frequency types. Hence, it is recommended to read our Buyer's Guide page on choosing the right type of booster. You can also read more technical info in the manuals, which can be found on the relevant product pages. And, sure, do not hesitate to get in touch with us while choosing a booster.

How do I know what mobile phone repeater suits for my country and mobile operator?

To help you in finding the most appropriate model based on network compatibility in your area, use our search engine. We have designed it to minimise your time and effort in searching for the ultimate booster. To find out which mobile phone repeaters are compatible with your country and operator, just select one of the Tabs above ("Shop by provider" or "Shop by coverage"). Thereafter, you can easily buy only from a list of boosters that work within your country and mobile operator.

Installing and Using

Can I install a repeater system without a technician?

Every mobile phone booster is easy to install without requiring any sort of technical know-how. For that you will just need to spend some time familiarising yourself with the booster by reading the manual. After going through the manual, you can easily install it without any technical help. Browse our How to Install page that we have specially designed for non-techies. However, feel free to Contact our technical support for professional help if you are unsure.

Can I use a 3G mobile phone repeater for improving voice calls?

It depends whether your network supports voice calls and 3G on the same frequency. If yes, then the repeater will boost voice and 3G signals. Nevertheless, 3G signal booster sets are generally designed only for improving mobile internet, not voice calls.

Most modern boosters at Mobile Signal Boosters are either dualband or triband, meaning that they support amplifying GSM and 3G/4G LTE signals at the same time. To buy from one of these models, you are invited to visit our GSM mobile signal booster page or use our Search engine.

Can I cover several rooms and floors with a mobile phone repeater?

Absolutely, we provide certified amplifiers that boost signals regardless of the number of obstacles in your home or office. However, it is important that you choose a reliable repeater that provides adequate network coverage across multiple rooms and floors. Choosing the best model may become more complicated if a building has concrete walls or metal partitions. In such situations, we suggest you to contact our managers to choose the best repeater for your individual situation and needs.

What should be the maximum length of the cable between an internal antenna and a mobile phone repeater?

The length differs depending on the model. For powerful repeaters such as NS-5000 GD, the cable length is approximately 15-20 meters; whereas for boosters such as the NS-300 GD, it is around 5-10 meters. It is better to use the cable provided with your installation kit to avoid any type of signal loss.

What should be the maximum length of the cable between an outside antenna and the mobile phone repeater?

It also differs for most of the repeaters. For powerful repeaters like NS-5000 GD or NS-2500 GD the maximum length can be 25-30 meters; whereas for smaller models like LCD-300 GD or NS-300 GD, it is 15-20 meters. However, we still strongly recommend to use the standard cable provided with the kit to avoid any type of signal loss.

How to check precise signal level in dB?

To interpret signal level with maximum precision, you’ll need to switch your smartphone into Field test mode (FTM). It’s a free application available in the App Store and Google Play Store requiring no extra setups for iOS and Android operating systems respectively. For each OS, the following steps need to be performed:

  1. iOS. Type * 3001 # 12345 # * and touch Call
  2. Android. Type * # * # 197328640 # * # * to activate
  3. Windows. Type # # 3282 # and start.

It is important to turn off WiFi for getting the right parameters of 2G, 3G and 4G LTE. If you are unable to search for the Field Test Mode on your smartphone, contact us to help you out with completing the Field Test mode.

How to aim an outdoor directional antenna correctly?

It is vital that you install the external antenna correctly in the following order to get the best network reception:

  1. Unbox the booster kit
  2. Setup, and turn on the system.
  3. It is better to have at least 2 persons for the installation process, one for aiming the antenna on the roof, and the other for installing the device and measuring results.
  4. One person should be on the roof to aim antenna towards your provider`s cell phone tower. The other should wait every minute to check signal level.
  5. The person on the rooftop should then rotate the antenna 1/8th of the way around, equalling 45 degrees. The person inside does the same procedure with signal testing.
  6. We advise to repeat the entire process 8 times until you try all 8 directions, every 45 degrees.
  7. Compare the results – the position that shows dB numerical value close to zero, is the result that you need to aim to.
  8. Fix the antenna in the direction that shows the lowest dB value.

Please, note, that the external antenna should be aimed away from buildings, transmission cables and any obstacles that could impede the results.

What do the dB signal testing results mean?

As mentioned earlier, the Field Test Mode is important to determine your antenna’s position. Here is a guide to help you out:

You should aim ideally for -79dB for the best indoor signal amplification.

Ordering and Shipping

What payment methods do you support?

We accept several payment methods. You can pay directly from the product page via:

Click the Buy now button and you will be automatically redirected to a payment gateway of your choice. Please Contact Us to get payment data and details if you want to pay via PayPal or bank trasfer.

How long will the shipping take?

We ship every mobile phone booster using DHL Express Couriers. Shipping usually takes 3-7 business days depending on your location. Sometimes it may take longer, but in such cases, we will always keep in touch with you.


Does Nikrans 3G repeater support all network operators?

Every Nikrans 3G repeater is compatible with the most common 3G 2100MHz network frequencies, such as:

4. H+

For most of the network carriers in Africa and Europe, 2100 MHz is the most commonly used frequency supporting 3G. However, we strongly advise to check the 3G frequency supported by your provider in your region before choosing a booster.

We would like to point out that 3G repeaters can only be used for amplifying 3G mobile Internet signal. For improving voice call quality, feel free to browse through our wide range of GSM phone repeaters.

How would I know that my GSM / 3G / 4G repeater is working in the right way?

Each LCD booster has a screen where you will see displayed all signal information.

As for other booster models, every mobile phone repeater from NS series comes with LED lights and here is each one of them described:

It is important to note that every repeater differs in terms of LED lights and notifications. For more accurate information, please refer to the operating manual.

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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