Tag: site survey

  1. Homepage
  2. site survey
4G 4G LTE Mobile Signal Strength
How Can I Accurately Check My Mobile Signal Strength? 

Did you know that there is much more to mobile signal strength than just the signal bar display? The real test for measuring your mobile signal strength accurately is the Field Test Mode. The results from this test can help you determine whether you might need a mobile signal booster. 

There are many factors that can affect your mobile signal strength, for example, whether you are inside or outside a building, how far you are from the cell tower etc. So let’s look at the Field Test Mode and how to use it. 

Signal Strength: How To Choose a Mobile Signal Booster

You can’t choose a mobile signal booster for your home or business if you don’t know how strong the outside signal is. And we don’t just mean ‘how many bars you’ve got.’ Yes, that gives some indication of how strong the signal is, but there is a more accurate way to measure mobile signal strength. 

Did you know that different phones have different numbers of bars? Some have 5, some have 4, some even have 8! Not only this, but even when phones have the same number of bars for signal strength, there isn’t actually any standardisation for them. Having 4 bars of signal on one phone can mean something different to having 4 bars on another phone. 

It’s pretty clear that measuring mobile signal strength purely by the number of bars isn’t very specific.

When experts measure mobile signal strength, they measure it in decibels. They are very precise and are much more informative and accurate for doing a mobile signal strength test. Testing in this way means you can find out just how strong the signal is that you are receiving. 

What Is Field Test Mode? 

You may not realise that the majority of phones have Field Test Mode – A built-in setting that can show you very useful information about your phone. This includes the signal strength, measured in decibels. 

We can imagine that you’ve already tried to find this on your phone right this second to check it out! We don’t blame you. But let’s just go through a couple of things to consider before you start taking mobile signal strength readings.

  • Carrier – Remember that the signal strength readings you take are only true for the mobile carrier of said phone. To compare the signal strength to other carriers, you would need phones on those carriers. Basically, even if you get 4 different service providers, you can only test the signal strength of the carrier of your phone when in Field Test Mode. 
  • Network – You need to know if the signal you are measuring is from an LTE network or not in order to interpret the results. LTE readings can be read differently from previous generation networks (like 2G, 3G and 4G0. 

How do you use Field Test Mode on an iPhone?

If you have an iPhone, you’ll find that it has a hidden built-in Field Test Mode app. Follow these steps to access it:

  1. Go to Settings > Wi-Fi and turn Wi-Fi Off.
    You will need the Wi-Fi to be turned off in order to be able to see the network you are connected to (e.g. 3G). 
  2. For iOS 9.3 and above: Go into Settings > Cellular > Cellular Data Options > Enable LTE and turn LTE to Off.
    For iOS 9.2 and below: Go into Settings > Cellular > Enable LTE and turn LTE to Off.
    As we said above, LTE readings can be very different from previous networks. In order to be able to best interpret the results, it’s ideal to get your signal readings from a previous generation network.
    If you like, you could then repeat the site survey with LTE enabled, which would give you readings for different generation networks. 
  3. To launch the Field Test Mode app, go to your Phone Keypad, dial *3001#12345#* and press the Call button. You’ll notice that where before you had signal bars, you now have a negative number. This negative number is the decibel signal strength reading. You should also see the carrier name and the type of network.  
  4. Tap on LTE
  5. Tap on “Serving Cell Meas”
  6. Look for “rsrp0” and the number corresponding will be the numerical measurement of the iPhone cellular signal strength in dBm

To start taking signal strength readings, you need to move to the location where you want to take the reading and then wait for between 30 and 60 seconds for the signal strength readings to catch up. You can record the signal strength, network type and carrier. 

Once you’ve finished taking readings, you can return to your normal iPhone settings by pressing the home button. Don’t forget to go back in and enable Wi-Fi and Cellular LTE! 

How do you use Field Test Mode on an Android?

To access Field Test Mode on an Android follow these simple steps:

  • Go to Settings > “About Phone”
  • Depending on the model of your phone, look for ‘Network’ or ‘Status’ to see your numerical signal strength in decibel 
  • You can usually see Network Type near the signal strength option. 

If you’re after a bit more information, there are apps you can download from Google Pay that will give you the signal strength in decibels as well as other info. To see the available apps search for ‘cell signal’ in the App Store. DOwnload whichever one is compatible with your phone, tablet or device. 

Just like with an iPhone, get ready to take signal readings by moving to the location you want to know the signal strength for. Stop and wait for between 30 and 60 seconds to let the signal readings catch up with you and then you can record them along with the network type (2G, 3G, 4G, LTE etc). 

Keep doing this until you have recorded the signal strength for all the locations in your home or business. 

What would I use mobile signal strength information for? 

Knowing the mobile signal strength for your living or working space enables you to see where you might need to boost the signal. Using Field Test Mode can enable you to perform a site survey, which gives you a floor plan analysis of your home or business.

The purchase of mobile signal boosters (also known as network repeaters, signal amplifiers, signal repeaters etc) should be based on the results of a site survey. 

Carrying out a site survey involves taking several accurate signal strength readings from in and around your home or office building. These readings can help you to calculate whether a signal booster will help and what devices you will need. 

Field Test Mode is ideal for carrying out a site survey. Basing it on signal bars is not reliable compared to the precise numerical value of decibel you get from this tool. Carrying out a site survey using Field Test Mode is very straightforward (as you will have seen from the steps above) and helps you to measure the mobile signal strength of your home or business using just your phone. 

What do the Decibel numbers mean? 

If you are connected to a non-LTE network (2G, 3G, 4G H+), the value you get is the Received SIgnal Strength Indicator (RSSI). This is a method of measuring wireless signals. 

LTE networks however, are usually measured in Reference SIgnal Received Power (RSRP) which is why LTE readings can be very different to the readings for previous generations like above. 

You’ll find that Decibel signal strengths are usually double or triple digits and are marked as a negative number. Your phone might not show the negative sign though. The stronger the signal, the closer the number is to zero, so -89 is a stronger signal that -99. 

The unit of measurement in all this is decibel (dB) – This measures the power of the mobile signal. This value is telling you how strong your phone is receiving the signal from your provider’s mobile network. 

Did you know that the Decibel scale is not linear? If the signal strength increases by 3dB, then it is twice as strong. Signal strength that increases by 10 dB is an increase of ten times the signal strength. So, in real terms, an RSSI value of -50 is actually ten times stronger than an RSSI measurement of -60. 

Why is Field Test Mode so Important?

If you are planning to install a mobile phone signal booster, then it’s absolutely vital that you have an accurate reading of your Received Signal Strength across your business or home. Field Test Mode can help you do just this and inform your site survey ready to help you make the right booster purchase. 

Field Test Mode enables you to see exactly how strong your mobile signal strength is – Both inside and outside your building. 

Field Test Mode is an essential tool when it comes to assessing how a mobile signal booster can improve your reception.

Call the Experts

If all this has got your head in a bit of a spin, then why not let the experts do it for you? Our Wi-Fi Experts are trained professionals in all things wireless. We can provide you with a site survey to help assess your mobile signal strength. Give us a call today! 

by admin
170 Views0
Business Wi-Fi Hampshire Wi-Fi Wi-Fi Advice Wi-Fi Design Wi-Fi Installation Wi-Fi Interference Wi-Fi Site Survey Wireless Network
How Wi-Fi Site Surveys Validate Your Network Design

You could have the most expertly designed Wi-Fi network, but without a Wi-Fi Site Survey, how will you know it will actually work as intended?

When it comes to designing and installing a wireless network, the most important thing is that it meets the demands of your users. 

The great thing about a Wi-Fi Site Survey is that can test your wireless network when it’s in the design stages and predict whether it will work or not, as well as within an already deployed network that needs some changes or additions made. 

Driving your Wi-Fi network design choices and deployment with data removes the risk of your wireless network failing to meet the needs of your enterprise. 

Gone are the days where a surveyor is laden down with computer setups, trudging around like a donkey. Nowadays it’s all the latest tech and we can carry out a Wi-Fi Site Survey with just the phone in our pocket. 

Validating your Wi-Fi network has never been more straightforward. Good news if you’re about to be designing your Wi-Fi network! Not only that, but it also makes it easier and quicker for businesses to be able to survey their Wi-Fi on a regular basis, ensuring that they continue to operate reliably. This is particularly important for anything that is business critical. 

What is a Wi-Fi Site Survey?

A Wi-Fi site survey is the process of assessing a physical environment to collect real-world data about wireless performance. It involves measuring signal strength, interference, and spectrum usage, while also identifying the best locations for access points and cabling.

This data is used to design, test, and validate a Wi-Fi network — ensuring it performs reliably in the real world, not just in theory.

When do I need a Wi-Fi Site Survey?

Wi-Fi site surveys are used at multiple stages of a network lifecycle, depending on your requirements:

Wi-Fi Design Site Survey (Pre-Design)

This survey is carried out on site before you’ve started to design your wireless network. Performing a Site Survey at this point allows you to create a predictive Wi-Fi network using data captured on the survey, including RF conditions, neighbouring networks, available/ congested channels, interference and accessibility for mounting AP’s.

Pre-Deployment Site Survey

Once you’ve designed your Wi-Fi network, you can use a Wi-Fi Site Survey to test your design and simulate the performance of antenna and access points. This data is acquired by placing an AP in the relevant location(s) and then analysing the Wi-Fi, making sure that the network would function as predicted in the design. 

Post-Deployment Wi-Fi Site Survey

The role of this Wi-Fi Site Survey is to identify whether a deployed network is working as intended. That means meeting performance expectations laid out in the predictive stage of the wireless design. 

Health Check Wi-Fi Site Survey

The best networks carry out regular ‘health checks’ to make sure everything is functioning as it should. This means that any changes you need to make to your network are proactive rather than reactive. Why wait until your end users are experiencing Wi-Fi problems that could produce a costly Wi-Fi outage? A Wi-Fi Site Survey at this stage can help pick up any issues with interference, coverage and capacity, nipping any potential problems in the bud. 

Troubleshooting Wi-Fi Site Survey

This is the Wi-Fi Site Survey you would carry out if you were already experiencing problems. A more reactive survey in which you can identify the underlying cause of the problems your end users are reporting. You can then go back to the design stages and re-deploy your wireless network for more effective working. 

Why Use a Site Survey to Validate Your Wi-Fi Design

A predictive Wi-Fi design is only as good as the assumptions it’s based on. A site survey allows you to validate that design using real-world data before full deployment.

This helps you:

  • Reduce risk
  • Avoid costly redesigns
  • Ensure performance meets expectations
  • Deliver a reliable user experience

Think of it as an insurance policy for your network design — confirming everything will work before you commit to installation.

What Does a Wi-Fi Site Survey Identify?

By completing a Wi-Fi Site Survey, you would find out a site survey provides critical insights that help validate your design.

Accurate Floor Plans

Accurate floor plans are the foundation of any reliable Wi-Fi design. If you haven’t physically been on site, you are relying heavily on CAD drawings or existing plans being completely up to date — which is often not the case.

During a Wi-Fi site survey, we verify that:

  • Dimensions and scaling are correct
  • Walls, stairwells, lifts, and partitions are accurately positioned
  • Any structural changes or temporary layouts are accounted for

Even small inaccuracies in a floor plan can lead to significant errors in a predictive design, resulting in poor coverage or misplaced access points. By validating the physical environment, we ensure your Wi-Fi design is based on reality — not assumptions.

Signal Attenuation and Building Materials

Not all walls are equal when it comes to Wi-Fi performance. Different materials — such as plasterboard, brick, concrete, glass, or metal — affect signal strength in very different ways.

A Wi-Fi site survey allows us to measure real-world signal attenuation, helping to determine:

  • How much signal is lost through specific walls and obstacles
  • How far Wi-Fi signals will realistically travel
  • Whether the predictive RF model accurately reflects the environment

Relying on estimated values or “best guesses” can lead to underperforming networks. By measuring attenuation on site, we can fine-tune your design to ensure accurate coverage and consistent performance.

Access Point Locations

Identifying the correct access point (AP) locations is critical to achieving reliable Wi-Fi coverage and capacity. While predictive designs provide a strong starting point, they cannot account for every physical constraint within a building.

A site survey enables us to:

  • Validate proposed AP locations in a live environment
  • Identify obstacles such as ducting, machinery, or structural features
  • Assess mounting options and cabling accessibility
  • Adjust placement to optimise coverage and performance

This stage ensures that your design works not just in theory, but in the real-world environment where it will be deployed.

Neighbouring Networks and Interference

One of the biggest limitations of predictive Wi-Fi design is that it cannot fully account for external interference. Nearby networks, devices, and environmental noise can all have a significant impact on performance.

During a Wi-Fi site survey, we can detect and analyse:

  • Neighbouring Wi-Fi networks
  • Channel congestion
  • Non-Wi-Fi interference sources
  • Background RF noise levels

This allows us to optimise channel planning and network configuration, ensuring your wireless network performs reliably even in busy or high-density environments.

Without validating these factors on site, even the most carefully designed Wi-Fi network can fail to deliver in practice.

What do you need for an accurate Wi-Fi Site Survey?

The Wi-Fi Site Survey is your chance to see how your network design could come to life. Really, the testing is the fun part! The most important parts of a successful Wi-Fi Site Survey are:

Accurate floor plans

Proper scaling is critical — even small errors can significantly impact design accuracy.

The right tools

Modern survey tools allow fast, accurate data collection using portable devices.

Relevant channel scanning

Focus only on the frequencies and channels your network will use.

Accurate data capture

Incorrect positioning or tracking can lead to unreliable results.

Proper attenuation measurement

Signal loss should be measured across obstacles to ensure accurate modelling.

Survey Methods

Different environments require different survey approaches:

  • Stop-and-Go
    Used in hazardous or complex environments where precision is more important than speed
  • Continuous
    A traditional method requiring manual input throughout the survey
  • Autopilot
    A faster, more efficient method with automated data collection
  • GPS-Based Surveys
    Ideal for large outdoor environments with limited reference points

Trust the Experts

If Wi-Fi Site Surveys have got your head in a spin, then why not leave it to the experts? Our trained Wi-Fi professionals here at Geekabit are experts when it comes to wireless site surveys. 

Operating out of Hampshire, London and Cardiff, our Wi-Fi experts are on hand to assist with all stages of Wi-Fi deployment – From the initial design and Pre- and Post-Deployment Site Surveys to Health Checks and full installations. 

Get in touch with our friendly team today and we’ll be more than happy to help. Or head to our website to find out more about the Wi-Fi Site Surveys Geekabit have to offer. 

by admin
158 Views0
4G 4G Mobile Broadband 4G office survey 4G Wi-Fi Business Wi-Fi Cell Coverage 4G Survey Mobile Network 4G Survey Mobile Phone Coverage Survey Wi-Fi Site Survey
4G Office Surveys – Hampshire, London and Wales

This week we spoke to a client needing a 4G office survey for their workplace, to see if 4G would be a viable internet option for their business, as well as identifying which network would be best for them.

Why would I want a 4G Office Survey?

4G broadband is an increasingly beneficial internet service provider for many homes and businesses, especially those in rural areas and places where BT Openreach cables can’t get to.

Here at Geekabit we take an unbiased approach when it comes to Mobile Network 4G surveys. Our aim is to gain an understanding of the mobile coverage on your premises and ascertain whether 4G broadband would be a good choice for your internet needs.

It is also hugely important for those who are considering moving their workforce to a new office building and need the guarantee of coverage. Even in today’s “Wi-Fi calling” world, we still need solid mobile phone coverage.

Our testing can assess any likely impacts on mobile network coverage in your office, from external factors such as wind farms and other tall buildings, to internal influences like wall composition.

What does a 4G Office Survey Involve?

Our equipment for a Mobile Phone Coverage Survey measures key performance indicators for 2G, 3G and 4G reception on various networks so you can be sure that 4G broadband is the right decision for your home or business.

The hardware we use to carry out in-building 4G office surveys uses advanced mobile network signal receiving and processing technology.

These 4G office surveys can be used to ascertain the internal mobile network coverage of your office or business premises, and identify any potential mobile network coverage problems early on before you commit to using 4G broadband for your internet provider.

There are some factors that could cause signal penetration problems (attenuation) such as different building materials and window glazing, but a 4G office survey can give you peace of mind that the 4G network you choose will be a reliable source of internet for your rural home or business.

Wired Certification through WiredScore

If you are a business landlord or even rent out a private property, carrying out a 4G survey for the premises can be extremely beneficial.

Back in 2015, the Greater London Authority launched a scheme through WiredScore – An initiative launched by the Mayor’s Digital Connectivity Rating Scheme.

This scheme gives a clear picture to tenants about the connectivity in their potential offices.

Over the past 18 months, we’ve all seen how imperative technology is – Where would we be without Zoom and Microsoft Teams? Technology plays a huge role in the success of businesses across the UK, not just London.

The capacity for connectivity in any given premises is an extraordinary marketing opportunity when it comes to landlords trying to get businesses to sign up to lease their office space. Commercial landlords and developers need to be aware of how important connectivity is to a property or premises – And a 4G office survey is a fantastic way to obtain this.

Good connectivity, especially when it comes to 4G in more rural areas, is a great asset to a business and will be top of the list of any business looking to secure new premises.

WiredScore provides the connectivity accreditation scheme to help overcome the challenge of proving your premises has the internet connection needed for a business to succeed. A WiredScore rating is a global rating scheme for digital connectivity and helps landlords to assess, improve and promote their premises.

Get in touch

If you’re struggling with wired broadband, and not getting the reliable internet connection you need in your rural business or home, then 4G could be a fantastic option for you.

It can feel like a big jump to give up on your wired broadband connection and opt for 4G – Which is where our Cell Coverage 4G survey comes in.

We can tell you exactly whether 4G broadband would work for you, and which network would be most reliable.

Relocating and moving offices comes with a raft of expense and issues which interrupts the daily workflow and output. Being confident that your team can communicate with your customers and stakeholders is a key consideration.

You can check out a previous blog of ours where we look at a few of our client case studies where 4G broadband was absolutely the best choice.

To see if 4G broadband would solve your Wi-Fi woes, get in touch with us today to arrange your mobile phone coverage survey. Let’s see if 4G broadband is the answer you’ve been searching for!

 

 

by admin
577 Views0

© Copyright 2026 All Rights Reserved