The wi-fi network should now be faster with less interference for all devices on the network, not just the Mac used to scan and detect the best channels.
Log into Oracle Community Click on the drop-down arrow next to your name in the upper right corner In the Actions list on your profile page, click 'Edit Profile'. A dBm is a negative number, and the closer to zero the better the signal.
Signal strength is typically displayed as a dBm figure. Wi-Fi Diagnosis Some Background Knowledge Signal Strength. What follows as my best Mac tips on how to get the most from your Wi-Fi connection with your OS X hardware and software. Mac: Want to know how good your Wi-Fi network really is? If you have Mac OS X 10.7 or above (Lion or Mountain Lion), a handy but hidden built-in utility can monitor your network's performance.
