Does your WiFi suck for video calls? Use 20MHz channels!

(continuing the great tradition of corny stock art)
Wild swings in quality (signal-to-noise ratio) on 2.4GHz. Noise floor levels vary by around 30X over tens of seconds. On a Mac this data can be accessed using the built-in Wireless Diagnostics tool (use search to find) under Window > Performance.
A speedtest.net run through my home WiFi. The peak throughput is much lower than the equipment is capable of (~75% less), but the connection is rock solid. Equipment is 2018 MacBook Pro, Ubiquiti UniFi UAP-AC-Pro. Uses the 5GHz band with 20MHz channel width only. During the run, RSSI was steady at -66dBm with SNR between 30 and 32. Internet connectivity is gigabit fiber from Sonic.

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