How to Check Wi-Fi Signal Strength At Home Or Anywhere

If you’re having problems with your Wi-Fi, such as slow internet or dropped connections, or you just want to find out if there’s a strong enough signal at your front door to install a smart doorbell, we I will explain how. .

Knowing the strength of the Wi-Fi signal in different places around your home will also help you know whether to replace your router with a mesh Wi-Fi system, where you can determine outdoor security camera locations, as well as diagnose any specific problems. possible device.

All you need to check signal strength is your iPhone or Android phone and a free app.

What is a good Wi-Fi signal strength?

Before we get into the apps and testing, it’s important to know what the numbers mean, otherwise they will become meaningless.

Signal strength is expressed as a percentage or more commonly as an RSSI value in dBm. RSSI simply stands for received signal strength indicator and this is what the apps below will show you.

The closer the value is to 0, the stronger the signal. That sounds backwards, but that’s because the values ​​are negative. So a higher number means a worse signal, a lower number a stronger signal.

It is also not a linear scale. A drop of 3dBm (say -50 to -53dBm) means the signal is half as strong. Conversely, a 3dBm increase means the signal is twice as strong.

Here’s a general guide to what test results mean for common Wi-Fi uses:

  • -50dBm: Excellent signal strength. You’ll rarely get better than this unless your device is right next to the source of the Wi-Fi network.
  • -55 to -60dBm: High quality signal. The devices will work fine, the video will stream with no issues.
  • -70dBm: Low Quality: Not really good enough for video, but ok for email and web browsing
  • -80dBm: Minimum signal strength required for basic connection. Basically unusable.
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How to check Wi-Fi signal strength on iPhone

Install AirPort Utility from the App Store.

Open the Settings app and scroll down until you see Airport Utilities. Tap it, then tap Wi-Fi Scanner to enable the feature.

How to check Wi-Fi signal strength

Now, run AirPort Utility and you will see a blue Wi-Fi scan option on the top right. Tap Scan and you’ll see all the Wi-Fi networks within range of your iPhone.

How to check Wi-Fi signal strength

Since continuous scanning is the default, the values ​​will change over time. You can adjust the Scan Duration slider so that the results only update for the time period you set.

Look at the RSSI value of your own network (may not be at the top of the list) and check the value.

How to check Wi-Fi signal strength

If you’re near a router or any other device that’s broadcasting Wi-Fi, it should be nice and strong.

Move to the location where you want good signal and see the value as -65dBm or higher. This is what you need if you are installing, such as a Wi-Fi video doorbell or a security camera.

If not, check out our tips for improving Wi-Fi signal. You may have moved your router or invested in a better router – or mesh Wi-Fi system.

How to check Wi-Fi signal strength on Android

On Android, download the Wi-Fi Speed ​​Test app. It’s a favorite of ours because it’s also a handy way to test the connection speed between your phone and your router, not your broadband speed.

However, here it is useful because it reports the signal strength.

How to check Wi-Fi signal strength

Unlike Airport Utility on iPhone, it won’t show you a list of all Wi-Fi networks in range, only the network your phone is connected to. Since you’re probably only interested in your own home Wi-Fi network, this shouldn’t be an issue.

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Just make sure your phone is connected to the right Wi-Fi network and open the app: signal strength is shown at the top and will change as you move with your phone.

There are two tabs – something is not clear – and you can see the Wireless Network Details if you swipe right from the home screen. The information here doesn’t change, but you can tap Refresh at the bottom when you move to another location. It can be useful because it tells you whether you’re connecting via 5GHz or 2.4GHz: many routers and mesh Wi-Fi systems combine the two bands and switch automatically.

The reported link speed may be useful to you, as it will provide an idea of ​​the maximum speed in that location, although you will find it will change over time. Remember that 2.4GHz Wi-Fi has a longer range than 5GHz.

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Posts “How to Check Wi-Fi Signal Strength At Home Or Anywhere” posted by on 2022-03-14 10:24:00. Thank you for reading the article at

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