Sometimes people might think that the router got a network slowdown, and they want to search or detect the router, which interfere with their router directly using their Mac as a Wireless Wi-Fi scanner. In case of many routers are there in your nearby area and also has same channels as your router, then you might experience slow connectivity speed.
For this, you might think of downloading the application from the Mac App Store and perform this task. But, you can easily perform this task on your Mac itself by simply using its OS X native features. The feature is basically hidden and I shared the ways to unearth the feature found in it, also going to tell you how to use it in a better way.
In order to begin the task, you need to enable the Wi-Fi icons in the menu bar of the OS X. Suppose, if you don’t have the Wi-Fi in menu bar, you can easily enable them by navigating into System Preferences -> Network -> Wi-Fi -> Check “Show Wi-Fi status in menu bar” option in the system preferences. Now click on the Wi-Fi icon in the menu bar, then click for “Open Wireless Diagnostics” option.
As soon as the app appears over the screen, select Scan option by clicking Windows then Scan; else you can directly select Command + 4 on the screen. Now, the scanners will brings you all the available networks on the screen with their network names, channels, noise levels, band and with other features too. You can even see the summary of the network on the left side of your sidebar.
Automatically, the scanner will analyze the network and gives you best channels for your router, and also recommended channels are listed out. You can configure the Wi-Fi channel in the Wi-Fi scanner utility in OS X Yosemite very easily.