If yo’re in a situation where there’s just too much traffic, it’s better to put a second WAP (Like a WiFi extender) closer to where you use your devices. However, depending on what versions of OS X you are running, the commands may vary. Let your WAP (aka your “router”) handle the channel selection. Wireless sniffing on the Mac works well, as Mac OS X has built in tools to capture a wireless trace. Yes, you can actually make the problem worse! The problem with selecting your own channel is that the WAP won’t automatically switch to another when the one it’s manually configured to use becomes saturated with traffic. Scans wireless networks in your area and displays extensive information, including: SSID, MAC Address, PHY Type (802.11g or 802.11n), RSSI, Signal Quality. So, what you “capture” today and determine what’s the best channel now might change the next day or even later that afternoon! Bluetooth devices, wireless peripherals, our phones and devices are all crowding the airwaves. WiFi Scanner is an easy to use tool for designing, verifying, and troubleshooting WiFi coverage. Modern WAPs (wireless access point) auto select the best channel for you based on existing traffic and this can change continually given the explosion of wireless devices which we are using every day. WiFi Scanner for Mac OS User Guide Introduction WiFi Scanner is an 802.11/WiFi wireless scanner and connection manager for 802.11 a/b/g/n/ac networks. Unless you’re using a 10+ year old WiFi router that doesn’t handle automatic channel switching well, there’s no need to do this. Trying to find which channel to use is pointless nowadays. There are many apps that you can use from the built in Network Diagnostics to commercial grade WiFi mapping and analyzers.
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