A school district asks why 2.4 GHz often feels more crowded than 5 GHz during a wireless survey. What is the best fundamentals answer?
Select an answer to reveal the explanation.
Short Explanation
Picture a two-lane road versus a multi-lane freeway with less microwave clutter. 2.4 GHz has fewer clean lanes and more neighbors—Bluetooth gadgets, microwaves—so surveys look busier.
Full Explanation
The 2.4 GHz ISM band supports only a small set of non-overlapping 20 MHz Wi-Fi channels in typical deployments and shares spectrum with many non-802.11 devices. The 5 GHz band provides more channel choices and generally less household interferer density. Survey congestion on 2.4 GHz is therefore a spectrum and coexistence reality, not an encryption or legality quirk.