Qualcomm Atheros QCA9880 802.11nac
Channel: 36 (5.180 GHz) | Bitrate: 532.6 Mbit/s
Channel: 11 (2.462 GHz) | Bitrate: ? Mbit/s
can I delete radio1? They have different GHz, what does that mean?
TP-Link Archer C7 v5
Qualcomm Atheros QCA956X ver 1 rev 0
OpenWrt 19.07.3 r11063-85e04e9f46 / LuCI openwrt-19.07 branch git-20.136.49537-fb2f363
5.4 GHz and 2.4 GHz, respectively. Simple.
(Your answer was contained in your question.)
A frequency band is an interval in the frequency domain, delimited by a lower frequency and an upper frequency. The term may refer to a radio band or an interval of some other spectrum.
The frequency range of a system is the range over which it is considered to provide satisfactory performance, such as a useful level of signal with acceptable distortion characteristics. A listing of the upper and lower limits of frequency limits for a system is not useful without a criterion for what the range ...
Some devices work on 2.4, some work on 5.4...some devices can access both bands.
which devices work only on 2.4? Is this some legacy standard?
All devices I connected to 5.4...
Are you serious or joking.
Then this mean you know what is is, correct?
I'd suggest to leave it alone until you understand radios more. Disable if you honestly have no 2.4 devices that need to connect and it keeps bothering you.
Most modern wireless routers have radios for use with both bands.
Don't delete it. Some devices like 2.4Ghz while others like to speak on 5GHz.
2.4Ghz goes best through walls, but 5Ghz will usually give you better speed.
No. It's by chance. Which has more performance?
I guess you're confusing 5G of wifi & 5G of cellphone. Are you worried that using 5G wifi will cost your money ?
I not use a SIM card in router. So no
It's by chance.
If a device can use both, usually the 5.4 GHz radio is better
If a device only has 5.4 GHz radio,
no choice, you use the 5.4 GHz radio But if a device only has a 2.4 radio there is
no choice, you have to use 2.4...
I really think you're misunderstanding here...
Not only that, but even dual-band devices that use both 2.4Ghz and 5Ghz will drop to the 2.4Ghz band the farther away you get from the device, since 2.4Ghz has a much better range and less of a chance of being blocked by items between you and the base-station (at the expense of bandwidth speed).
If you aren't really using it, then just Disable the WiFi entry for 2.4Ghz, don't delete the radio itself. You never know when you might need it (most IoT devices are 2.4Ghz, for example, as are older devices)
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