5GHz Wi-Fi Channel Optimizer
Visualize vertical spectrums, mark interference sources on a blacklist, and automatically recommend optimal 160MHz/80MHz high-speed bandwidth combinations.
Operation Mode
Physical Channel Layout
Scroll Down ↓Current Binding Status
36 ~ 48
Total Bandwidth: 80 MHz (4 sub-channels)
Interference Result
Clean
Your current channel choice avoids all known interference sources for maximum throughput.
Weather Radar (DFS) Avoidance Mechanism
Normal OperationSmart Clean Channel Recommendation
Based on your 80MHz bandwidth setting and excluding all 🚫 Blacklisted interference sources, the system has identified the following valid channel blocks:
Network Engineering 101: 5GHz Wi-Fi Channels & DFS Mechanics
Why does Wi-Fi disconnect suddenly when radar interference occurs?Certain 5GHz channels (UNII-2A & UNII-2C, CH 52~144) share frequencies with weather and military radars. Regulations mandate that routers detecting radar signals must immediately shutdown the channel within 10 seconds (DFS avoidance) and block it for 30 minutes. This is why Wi-Fi drops out unexpectedly while gaming or streaming!
Why do routers always flee to CH 36/40 when radar appears?Channels CH 36~48 (UNII-1) are radar-free safe harbors. Switching to other radar-regulated channels requires background listening for 1 to 10 minutes (CAC check) before transmitting, causing prolonged network downtime. Switching to CH 36/40 allows zero-delay seamless switching and offers maximum compatibility.
The 160MHz Catch-22: Limited OptionsEnabling a 160MHz channel requires bonding 8 consecutive 20MHz sub-channels. In the 5GHz spectrum, excluding UNII-3, only 2 sets of 160MHz blocks exist worldwide: CH 36~64 (partially covers DFS) and CH 100~128 (fully covers DFS). Operating at 160MHz inevitably exposes network performance to radar detection mechanisms.