zervanko
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Does Raspberry Pi 3B(not +) support Wi-Fi channel 8-13?

Mon Jul 16, 2018 7:41 am

I see in this (https://medium.com/@ghalfacree/benchmar ... 122cf3d806 ; see Wi-Fi Benchmark) 3B+ review that:
Cells 9 through 13 inclusive are only visible on the Pi 3 B+
But why? I can see all these channels on my 3B.

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DougieLawson
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Re: Does Raspberry Pi 3B(not +) support Wi-Fi channel 8-13?

Mon Jul 16, 2018 7:43 am

It depends on your country code.

WiFi works on channel 1 to 13 in the UK.
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Gareth Halfacree
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Re: Does Raspberry Pi 3B(not +) support Wi-Fi channel 8-13?

Mon Jul 16, 2018 8:24 am

zervanko wrote:
Mon Jul 16, 2018 7:41 am
I see in this (https://medium.com/@ghalfacree/benchmar ... 122cf3d806 ; see Wi-Fi Benchmark) 3B+ review that:
Cells 9 through 13 inclusive are only visible on the Pi 3 B+
But why? I can see all these channels on my 3B.
Hi, Zervanko. Author of the review, here.

If you read carefully, you'll see the review is talking about cells, not channels - i.e. base stations. Of the 13 base stations visible during the review, base stations 9 through 13 inclusive were running in the 5GHz spectrum - which is only visible using the dual-band radio of the Pi 3B+, and not the single-band 2.4GHz-only radio of the Pi 3B.

Naturally, both models can see *channels* 1-14 of the 2.4GHz spectrum without difficulty, depending on your region settings.

This is explained in the following paragraph, below the graph:

The iwlist utility is used to scan for nearby wireless access points and rate their signal quality out of a possible 70 points, which is then charted. Cells 9 through 13 inclusive are only visible on the Pi 3 B+, thanks to its new dual-band 2.4GHz and 5GHz radio; all other cells show improved reception thanks to the new ground-plane antenna, based on the one developed for the Pi Zero W, with the sole exception of Cell 8.

(Emphasis added.)

Hope that helps clarify things!

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