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Forum Discussion
Dugby
Jul 17, 2025Aspirant
160MHz setting for AX in RAX120v2
Hello, seeking advice - please.
I have a newly acquired RAX120v2 with 1.2.10.56 firmware and chose not to use "Smart Connect WiFi" and therefore have configured separate SSIDs for 2.4 / 5 GHz .
Have read that with 5GHz & WiFi 6 that 160MHz can be selected (becoming 4x4:4).
I use Firefox (v140.0.4) web browser and cannot see within the router menus the options to set 160MHz.
Have I misunderstood that this is a user customizable option/setting ?
I am experienced with my many NG routers XR500/XR700/R7800 and RS600 coming next week.
The "up to 4800mbps" is what sets the channel width.
4800mbps=160hz
2400mbps=80hz
With that model because its a 4x4 device.
Keep in mind, if you're in an area with radar, dfs can cause drops occasionally (160hz requires dfs channels)
6 Replies
- FURRYe38Guru - Experienced User
I believe if you set the max speed rate on the 5Ghz network, this sets the 160Mhz option automatically.
Also check down under Advanced Tab/Advanced settings/Wireless settings for any additional options there. I believe MIMO and Beamforming should be enabled as well.
- plemansGuru - Experienced User
The "up to 4800mbps" is what sets the channel width.
4800mbps=160hz
2400mbps=80hz
With that model because its a 4x4 device.
Keep in mind, if you're in an area with radar, dfs can cause drops occasionally (160hz requires dfs channels)
- DugbyAspirant
When I configured the 5GHz WiFi settings, I did infact choose the Max (default) which was 4803 Mbps.
The "Advanced Tab/Advanced settings/Wireless settings" had additional settings, but no explanations about 80/160MHz selections.
The documentation in the webpage and also the PDF manual is insufficient in fully explaining the settings, whilst the marketing docs make it a big feature.
Many thanks for both responses, very appreciated.
Best regards from Australia.
- FURRYe38Guru - Experienced User
I haven't seen any router mfr explain or give users good information about the 80/160Mhz support options when they support them on there routers. Seems to be in the UI or mostly hidden and automatic now days.
- KitsapMaster
Some good background on Wi-Fi in general, and channel width can be found here: https://www.wiisfi.com/
Chapters 6 and 10 in particular.
- DugbyAspirant
Thankyou for the extra details. I had a career in global enterprise networking, and found the NG documentation to be insufficient.