From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ot1-x335.google.com (mail-ot1-x335.google.com [IPv6:2607:f8b0:4864:20::335]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 78E703CB37 for ; Thu, 11 Jul 2024 12:53:38 -0400 (EDT) Received: by mail-ot1-x335.google.com with SMTP id 46e09a7af769-7044c085338so588230a34.2 for ; Thu, 11 Jul 2024 09:53:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1720716818; x=1721321618; darn=lists.bufferbloat.net; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=/6OUQWjQlyBrOHqpj0spOsYdNcb2FmmHkn1BW73/WXk=; b=fo8ig6WXuce9Wa4YrrU0k1NWD35fY49t/ILbbvcALkinFQbEM1lTQSsdzKADa4aCcf pJkPTI5lt8IRMtkR5p9JvwUlQK+3KwToyoQlxzLOFB5o8aW9Q07lXdnzxIZEXanfhEIs SVmqt8ICHdW+bzBxLBNS85bKbrtpiIABSQj88= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720716818; x=1721321618; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=/6OUQWjQlyBrOHqpj0spOsYdNcb2FmmHkn1BW73/WXk=; b=h4cvFyFQNOucK4hDmBjkEYT2wcnnletQwLEgO7S3JyYHrerANQLbyjBoNm/B/Bp9Nl bSlOAYNfbl7nfL+ZPUqqKiiQiRvF8lVz6a0LYoKZ1lRDczTpUqjFxbuIjZv2gIO4crcg /y7YE93ua3SJF3CIBClc8IrrrgJZ+joXiOf4ZI7LHpK+4Jm52BBg1yiDfYl0NFfXz+1k GFhAcNjY1FNTnfpRM86GVR3qAZo4PRs6exgcu43WEZbeUrsHpXB/jZGPxHdNBFWDhyI8 cMK1w66vkwcYzTfDQK1SWce8wsqu7rEMoAelwMmZr0bffIdBvNBzXWHi8DMouEKjfMmi Yv3A== X-Gm-Message-State: AOJu0Yzq1Adl/Nc/kA4ttDaoOtf4TOtWUNl7V0hkBVA6DwK8hSSRBs/I s6ZXUxskm5GBf5Aljb0KLC/1b8Nujr09xqmOxoU6YXFVi5QS8dhzKdvkcDa0PL4cv/9qE8DLALC T8s15eWBudErnlr6dLQR6smb4kN463DwgdnKIb7zK22+7+Kfdj6dCXGsGW1Jer69VFYWa0WAzBh xXKu98k4HN2u+X/UrfcfqtxKXbtVv7bBMetHXX X-Google-Smtp-Source: AGHT+IF4PFMSThh8IefKx6prYjhpFLNnBvLFk0yodFhDgc1mW/+EdsgdExprI9ckpwQeR8ko/aUejTa5MlcSQk6MOFI= X-Received: by 2002:a05:6808:f04:b0:3d9:3aa0:894e with SMTP id 5614622812f47-3d93c090066mr11297414b6e.50.1720716817576; Thu, 11 Jul 2024 09:53:37 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Bob McMahon Date: Thu, 11 Jul 2024 09:53:25 -0700 Message-ID: To: Dave Taht Cc: Make-Wifi-fast Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000b251f4061cfb9a01" Subject: Re: [Make-wifi-fast] beamforming and antenna debugging X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Jul 2024 16:53:38 -0000 --000000000000b251f4061cfb9a01 Content-Type: multipart/alternative; boundary="000000000000abdabd061cfb9ab8" --000000000000abdabd061cfb9ab8 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable I think you may be talking about front end modules. These are hard to engineer and to manufacture, typically requiring a semiconductor company teamed with specialists to do well. https://investors.broadcom.com/news-releases/news-release-details/broadcom-= introduces-fifem-worlds-first-wi-fi-rf-fem-filter Bob On Thu, Jul 11, 2024, 9:42 AM Dave Taht via Make-wifi-fast < make-wifi-fast@lists.bufferbloat.net> wrote: > It is really good to be completely over my head for a change, to some > extent. From: > > https://forum.openwrt.org/t/tuning-beamforming-and-antenna-design/203720 > > It is very rare these days that I get permission to talk about what I'm > doing, but today I did! Somos Internet has been designing and building > their own MT79 based internet router and bridge for the past few months. > They engaged me to take a look at the reference board, and we were really > pleased to see how well all of OpenWrt, not just the make-wifi-fast > fq_codel bits, was working nowadays. > > That was last month. This month, they got back the new boards with a new > antenna layout, and the 5ghz performance at range is *terrible*. I > confess that I no longer have even the slightest grip on how to go about > debugging and improving antenna performance - are there beamforming > variables worth sweeping in the mt76 driver? A piece of test gear we coul= d > use to see what is going wrong? A design tool for antennas? A debugging > strategy for antenna placement? > > > > -- > https://www.linkedin.com/feed/update/urn:li:activity:7203400057172180992/ > Donations Drive. > Dave T=C3=A4ht CSO, LibreQos > _______________________________________________ > Make-wifi-fast mailing list > Make-wifi-fast@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/make-wifi-fast --=20 This electronic communication and the information and any files transmitted= =20 with it, or attached to it, are confidential and are intended solely for=20 the use of the individual or entity to whom it is addressed and may contain= =20 information that is confidential, legally privileged, protected by privacy= =20 laws, or otherwise restricted from disclosure to anyone else. If you are=20 not the intended recipient or the person responsible for delivering the=20 e-mail to the intended recipient, you are hereby notified that any use,=20 copying, distributing, dissemination, forwarding, printing, or copying of= =20 this e-mail is strictly prohibited. If you received this e-mail in error,= =20 please return the e-mail to the sender, delete it from your computer, and= =20 destroy any printed copy of it. --000000000000abdabd061cfb9ab8 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I think you may be talking about front e= nd modules. These are hard to engineer and to manufacture, typically requir= ing=C2=A0a semiconductor=C2=A0company teamed with specialists to do well.

Bob



On Thu, Jul 11, 2024, 9:42 AM Dave Taht via Make-wifi-fast <make-wif= i-fast@lists.bufferbloat.net> wrote:
It is really good to be c= ompletely over my head for a change, to some extent. From:

It is very rare these days that I get permission to talk about wha= t I'm doing, but today I did! Somos Internet has been designing and bui= lding their own MT79 based internet router and bridge for the past few mont= hs. They engaged me to take a look at the reference board, and we were real= ly pleased to see how well all of OpenWrt, not just the make-wifi-fast fq_c= odel bits, was working nowadays.

That was last month. This month, they got back the new bo= ards with a new antenna layout, and the 5ghz performance at range is=C2=A0<= em>terrible. I confess that I no longer have even the slightest grip o= n how to go about debugging and improving antenna performance - are there b= eamforming variables worth sweeping in the mt76 driver? A piece of test gea= r we could use to see what is going wrong? A design tool for antennas? A de= bugging strategy for antenna placement?




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This ele= ctronic communication and the information and any files transmitted with it= , or attached to it, are confidential and are intended solely for the use o= f the individual or entity to whom it is addressed and may contain informat= ion that is confidential, legally privileged, protected by privacy laws, or= otherwise restricted from disclosure to anyone else. If you are not the in= tended recipient or the person responsible for delivering the e-mail to the= intended recipient, you are hereby notified that any use, copying, distrib= uting, dissemination, forwarding, printing, or copying of this e-mail is st= rictly prohibited. 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