You're not alone if you've ever found yourself waving your phone around, trying to find a better signal.  

The good news? There's a more scientific way to do it. To accurately measure your network speed and signal strength, you'll need the right tools, such as a cellular signal logger or a network signal analyser, to collect accurate data instead of relying on those little bars on your phone. 
 

Why Does Signal Strength Matter? 

A weak or fluctuating signal can cause: 

Slow internet speeds – Frustrating buffering when streaming or video calling. 

Dropped calls – Just when you're about to close a deal, the line goes dead. 

Poor connectivity indoors – Concrete walls can be a nightmare for signal penetration. 

Best Ways to Test Network Speeds and Signal Strength 

Use a Network Signal Analyser 

A Network Signal Analyser provides real-time signal strength readings, helping you determine the best locations for coverage. These tools give you detailed insights, including: 

RSRP (Reference Signal Received Power) – Measures signal strength. 

SINR (Signal-to-Interference-plus-Noise Ratio) – Indicates signal quality. 

Cell Tower ID – Helps identify the nearest cell tower. 

Use a Cellular Signal Logger 

If you need long-term signal monitoring, a Cellular Signal Logger records fluctuations over time, perfect for identifying weak spots in an area. It is ideal for businesses or installers mapping out network coverage. 

Use Speed Test Apps 

For a quick check, apps like Ookla Speedtest or Fast.com measure download and upload speeds and latency. However, they don't provide details about signal strength, which is where professional tools come in. 

Check Field Test Mode on Your Phone 

Both iPhones and Androids have a hidden Field Test Mode: 

iPhone: Dial *3001#12345#* and press call. 

Android: Go to Settings > About phone> Status > Signal Strength. 
This method isn't as detailed as a Network Signal Analyser but gives a rough idea of your signal quality. 

 
 

 

FAQs  

What is a good signal strength for mobile networks? 

 
A strong signal is typically between -50 dBm to -70 dBm. Anything below -100 dBm indicates a weak signal. 

How do I improve a weak cellular signal? 

 
You can try relocating near windows, using a signal booster, or switching to a different network with better coverage. 

Can WiFi interfere with mobile signals? 

 
Not directly, but if your phone prioritises WiFi over mobile data, a weak WiFi signal might make it seem like your mobile connection is slow. 

What's the best tool for long-term mobile signal monitoring? 

 
A Cellular Signal Logger is ideal for tracking network performance over time. 

Can I check which network has the best coverage in my area? 
 

Yes, websites like CellMapper.net and apps like OpenSignal provide crowd-sourced data on network coverage. 

Final Thoughts 

Testing cellular network speeds and signal strength doesn't have to be a guessing game. With the right tools, such as a network signal analyser for real-time data or a cellular signal logger for long-term monitoring, you can get a clear picture of your network performance.  

Whether you're a data installer, electrician, or just someone tired of dropped calls, knowing how to test your signal can save you a lot of frustration. 

And remember, waving your phone in the air probably won't help, but using the right equipment will.