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I don't understand what possesses these folks to continue making 2.4ghz devices. I understand there are use cases for low bandwidth, high range. But surely we'v
by vlan0 6mo ago
I don't understand what possesses these folks to continue making 2.4ghz devices. I understand there are use cases for low bandwidth, high range. But surely we've passed the point where that is more desirable to most than lower latency and high throughput, right?
- Havoc 6mo agoMy 2.4ghz is basically all IOT these days. Things that matter are on 5 or 6 ghz. Busy moving the entire thing to be entirely firewalled off given how clean the separation is
- vlan0 6mo ago>My 2.4ghz is basically all IOT these days. Yup. And it's exactly why some of my IoT admins are struggling. There is only so much spectrum to go around.
- mschuster91 6mo ago2.4 GHz has the advantage of it passing through obstacles easier. The higher the frequency the more easily it gets blocked.
- vlan0 6mo agoYes. And 2.4 lives and dies by that sword. What downsides might there be in areas where dozens of APs hear each other and 100s of clients hear each other?
- leptons 6mo agoIt's an IoT device, not a laptop. It does not really need 5ghz to fulfill its purpose as an embedded CPU, and adding 5ghz likely would require making some room for it by removing other functionality.
- vlan0 6mo agoYes and in some uses cases it works against you. 2.4 is incredibly crowded without adding 802.11 to the mix. My IoT admins would have less complaints if they could take advantage of my small cell 5Ghz spectrum. This isn't 2005 with widely deployed asymmetrical wireless networks.
- everforward 6mo agoCan't you just underpower the antenna on a 2.4 radio if you need networks that don't bleed into each other as badly? Unless it's an issue because of the tiny antennas that usually come on microcontrollers.
- vlan0 6mo agoTrue for devices under your control. But think venues with large BYOD counts. Add in that all client devices generally transmit at full power. End result is an environment with not a lot of headroom in the 2.4 space.
- leptons 6mo ago2.4ghz isn't the only problem - even cell towers have problems with large amounts of devices. And "large BYOD" events are not a normal use case for wireless, and even 5GHz will have problems in those situations.
- vlan0 5mo agoRight, so RF issues will possibly exist on all frequencies. And yet we continue to build devices on the most congested spectrum available.
- joshryandavis 6mo ago> I understand there are use cases for low bandwidth, high range. Use cases like IoT? The very thing this is for?
- vlan0 6mo agoIs what you described a truth for all IoT devices? If I have los of my AP, why do I need 2.4Ghz? Even so, what SNR do you truly need for this low bandwidth application? Where is the engineering here? I have a unique position of having a data set over 8000 APs with 40k unique devices. If you design properly, there is no need for 2.4 ever. 2.4Ghz congestion (with nearly no actual 802.11 traffic) is very high. To the point where the IoT folks are struggling.