Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.sys.raspberry-pi > #26004
| From | Chris Elvidge <chris@mshome.net> |
|---|---|
| Newsgroups | comp.sys.raspberry-pi |
| Subject | Re: Inbuilt Wifi |
| Date | 2021-01-21 17:30 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <rucdod$7fb$1@dont-email.me> (permalink) |
| References | <ruc6c8$8pj$1@dont-email.me> <ruc775$f8t$1@dont-email.me> <ruc7id$gn2$1@dont-email.me> |
On 21/01/2021 03:45 pm, The Natural Philosopher wrote:
> On 21/01/2021 15:39, Chris Elvidge wrote:
>> On 21/01/2021 03:24 pm, The Natural Philosopher wrote:
>>> For reasons not pertinent to PIs, I started researching wifi
>>> performance, and would like the assembled multitudes to comment on
>>> the correctness, or otherwise of what I have found.
>>>
>>> - All Pis with built-in Wifi use the Broadcomm chip
>>> - This chip is not capable of 5Ghz connectivity
>>> - Nor is it capable of 40Mhz dual channel operation
>>> - ergo it *cannot* connect at *more* than 72Mbps
>>>
>>> And its often _way_ worse than that.
>>>
>>>
>>
>> Both my Pi3B+ connect to my 5Ghz wifi.
>>
> +++!
>
> can you show what chipsets/drivers and what protocols they are using?
>
> It would be nice to tabulate the results
>
>
lshw shows:
*-network
description: Wireless interface
physical id: 2
logical name: wlan0
serial: b8:27:eb:fb:cc:a1
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=brcmfmac driverversion=7.45.206
firmware=01-88ee44ea ip=192.168.23.152 multicast=yes wireless=IEEE 802.11
iwconfig:
wlan0 IEEE 802.11 ESSID:"CHRISPLACE-A"
Mode:Managed Frequency:5.3 GHz Access Point: 80:3F:5D:FA:4D:FA
Bit Rate=78 Mb/s Tx-Power=31 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=70/70 Signal level=-31 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
# cat /sys/class/net/wlan0/device/vendor
0x02d0
# cat /sys/class/net/wlan0/device/device
0xa9a6
02d0 is Broadcom
--
Chris Elvidge
England
Back to comp.sys.raspberry-pi | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Inbuilt Wifi The Natural Philosopher <tnp@invalid.invalid> - 2021-01-21 15:24 +0000
Re: Inbuilt Wifi Chris Elvidge <chris@mshome.net> - 2021-01-21 15:39 +0000
Re: Inbuilt Wifi The Natural Philosopher <tnp@invalid.invalid> - 2021-01-21 15:45 +0000
Re: Inbuilt Wifi Chris Elvidge <chris@mshome.net> - 2021-01-21 17:30 +0000
Re: Inbuilt Wifi Theo <theom+news@chiark.greenend.org.uk> - 2021-01-21 22:52 +0000
Re: Inbuilt Wifi druck <news@druck.org.uk> - 2021-01-21 17:24 +0000
Re: Inbuilt Wifi A. Dumas <alexandre@dumas.fr.invalid> - 2021-01-21 17:42 +0000
Re: Inbuilt Wifi Richard Jones <news@rgjones.screaming.net> - 2021-01-21 18:15 +0000
Re: Inbuilt Wifi alister <alister.ware@ntlworld.com> - 2021-01-21 18:09 +0000
Re: Inbuilt Wifi "A. Dumas" <alexandre@dumas.fr.invalid> - 2021-01-25 09:12 +0100
Re: Inbuilt Wifi "A. Dumas" <alexandre@dumas.fr.invalid> - 2021-01-25 09:16 +0100
Re: Inbuilt Wifi "A. Dumas" <alexandre@dumas.fr.invalid> - 2021-01-25 09:27 +0100
Re: Inbuilt Wifi "A. Dumas" <alexandre@dumas.fr.invalid> - 2021-01-25 09:39 +0100
csiph-web