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Forum Discussion
Does 2.4ghz signal interfere with 5ghz performance?
I've got a CM1000 modem and using Google Mesh Wifi, and am trying to problem-solve some performance issues. Today, my wifi started cutting out (completely) every 10-15 minutes or so, and I'm trying t...
> [...] Could a 2.4ghz signal be at all interfering with the 5ghz band?
Unlikely, for typical signal strengths. The factor-of-two difference
in frequency is pretty big, making it pretty easy for a receiver to
reject the wrong one. (If you defeat the interlock on a microwave oven,
and run it with the door open, then it's a different story.)
> [...] Does interference occur at the point of reception [...]
In the receiver, yes.
> Or, does interference occur at the point of transmission - as in,
> could one signal cause my Google mesh wifi (or modem) to somehow
> transmit all signals (even 5ghz ones) poorly?
No. Transmitters are generally unaffected by their environments.
> [...] a secondary question would be if interference is better or worse
> if someone is actively using wifi, or if interference should be an
> even/consistent occurence because a router is always emitting a signal?
"Interference" means an unwanted signal degrades reception of a
desired signal. If the interfering signal varies, then the interference
varies. If your neighbors' use of their routers varies throughout the
day, ...
Are you too young to have listened to a radio in adverse conditions?
This is very helpful - really appreciated. So, because our devices are using the 5ghz signal, and we aren't detecting any competing 5ghz signals from the house (only 2.4ghz), it sounds like interference isn't an issue, which is a helpful rule out.
- Just an FYI, 2.4 ghz gives you longer range just not higher speeds, 5ghz gives you faster speeds with shorter range.