RSSI vs Time

The networks that are checked in the Information Chart will be graphed in these graphs. The RSSI vs. Time graph, which displays the signal strength or RSSI (received signal strength indicator) over time. Selecting a specific network that is checked will highlight that network in the graphs, as well as dim the others.

RSSI vs Time Graph

The selected network is highlighted on the graph. Hovering the cursor over a graph point displays the signal strength gathered at that time.


The 2.4 GHz graph displays all of the networks that are checked and on the 2.4 GHz frequency range. The recommended channels are 1, 6, and 11 because they allow for the best spread of frequency without overlap (interference) with other networks. Choosing the most vacant of the recommended channels for the user’s network will ensure the best chance for the strongest signal with the least amount of noise.

The 5 GHz graph displays all of the networks that are checked and on the 5 GHz frequency range. This frequency range is much wider and thus allows for more choices of channels without fear of overlapping networks. Also, 5 GHz typically has far less noise due to the fact that it is not a frequency used by common consumer products. However, 5 GHz cannot travel and cannot penetrate objects (such as walls) as well as 2.4 GHz. The user’s networking environment will determine which is the best frequency range to use.

Hover selected networks to reveal more information, such as the SSIDs that are grouped together in the same signal.

2.4 GHz and 5 GHz Channel Graph

Signal Rank

Signal Rank is a feature that plots all of the checked networks signal strength, for a quick and easy comparison. This graph will also highlight other Access Points on the same network, which allows users to see which Access Point might give them the best and/or fastest connection.

Signal Rank Graph

Speed Test

From this tab, the user can test download and upload speed, as well as the connection delay. Users can choose from various servers to test to around the world. The results are graphed and recorded within the app, which can be accessed by clicking the “i” button to the left. Clicking the purple bar graph icon changes the plot graph to a bar graph that ranks the test results based on download or upload speed.

Signal Rank Graph

Speed Test: Change Servers

By default, WiFi Scanner will try to connect to the fastest server available to the user. Users manually select a server by clicking on the server name (see image below.) This will provide a pop up window with a list of servers to choose from.

Change Servers for Speed Test