inSSIDer: Analyze and Plot Local Wi-Fi Networks
Navigating Public Wi-Fi Networks
Frequently, when connecting to the internet in public locations, a large number of Wi-Fi networks are readily accessible. Many users, in such scenarios, instinctively select the first available network displayed.
However, a common issue arises where, despite appearing to have adequate signal strength, the actual network performance proves to be subpar. This often results in dropped connections and the need to repeatedly test alternative networks until a stable connection is established.
Existing Wi-Fi Analysis Tools
Here at MUO, we have previously highlighted several effective tools for evaluating Wi-Fi networks. Jack detailed the functionality of HeatMapper, an application designed to visualize Wi-Fi signal strength throughout a home environment.
Furthermore, Guy demonstrated how to utilize Xirrus for diagnosing and resolving network problems.
Introducing inSSIDer 2.0
While both of these resources are incredibly useful, a recently discovered Wi-Fi analysis tool has proven exceptionally impressive. I felt compelled to share this discovery with our readership.
inSSIDer 2.0 has already received positive reviews from various technology publications, and may be familiar to some. For those who haven't yet encountered it, this article provides an introduction to its capabilities.
Exploring WiFi Networks with inSSIDer
I must confess, network analysis tools haven't always been a preference of mine. My interest in Wi-Fi utilities grew recently as I found myself utilizing public hotspots more frequently and needing to identify a robust Internet connection. inSSIDer delivers a remarkably clear visualization of all Wi-Fi networks within range. It presents a comprehensive listing of detailed information pertaining to each network. Importantly, it functions seamlessly with standard Wi-Fi adapters, eliminating the need for specialized hardware.
As illustrated above, the software displays the Media Access Control (MAC) address of each device, the network name (SSID) of the router, signal strength, channel, the router’s manufacturer, and security protocols in use. Furthermore, it showcases recent network activity and, with a configured GPS device, even the GPS coordinates of the router.
Integrating a GPS device is straightforward; simply connect your PC-compatible unit and configure the serial port settings within inSSIDer to align with the device’s specifications.
While many Wi-Fi analysis applications offer real-time signal strength graphs, inSSIDer’s representation appears notably accurate when compared to alternatives. These graphs can be viewed for all channels or a selected subset.
A graphical depiction of the current signal strength for each device is also available. This provides a rapid assessment of which access point delivers the strongest signal in your current location. A laptop user could, in theory, navigate an area and pinpoint the device’s location using this visual aid.
The application also allows filtering of displayed devices based on specific criteria, such as security type, vendor, or other parameters.
If creating a custom filter seems cumbersome, the "Quick Filters" offer a selection of pre-programmed options. This is the most efficient method when filtering by a single parameter.
For continuous monitoring of local networks without occupying the entire screen, you can activate "View" and switch to "mini" mode. This minimizes the window and consolidates the display and tabs into a readily accessible panel that can be positioned in a corner of your screen.
A "Start GPS" link is present at the screen’s top. With a GPS device connected to your PC or laptop, you can log network activity and export the data as a GPX file, displaying the locations of all access points on compatible GPS devices. Alternatively, you can utilize the integrated GPX to KML converter for export to Google Earth or similar applications.
There is arguably no simpler method for mapping multiple Wi-Fi networks or a combination of access points. Rather than employing heat mapping software and manually tracing access point locations, simply enable GPS within inSSIDer and allow the software to automate the mapping process.
Have you had the opportunity to use inSSIDer? We invite you to share your thoughts on the software, alternative applications, or any features we may have overlooked in the comments below.
