Here is another quick tool for this weekend. This tool simply grabs the output from NETSH WLAN SHOW INTERFACE and displays the results in the Windows interface (because you can’t quickly see all this in the Windows GUI). You can change the refresh interval in ms.
If no wireless connection is active, you will see a screen like the following:
When a connection is active, you will see the following:
If you want to have the percentage signal strength converted to dBm, you can use the following formula:
if(quality <= 0) dBm = -100 else if(quality >= 100) dBm = -50 or better else dBm = (quality / 2) - 100
If enough people ask for it, I may take the time to add the conversion into the output for you.
Here is the download link: