From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oo1-xc30.google.com (mail-oo1-xc30.google.com [IPv6:2607:f8b0:4864:20::c30]) (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 EF9313CB37 for ; Thu, 11 Jul 2024 12:42:49 -0400 (EDT) Received: by mail-oo1-xc30.google.com with SMTP id 006d021491bc7-5c669a0b5d1so575183eaf.3 for ; Thu, 11 Jul 2024 09:42:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1720716168; x=1721320968; darn=lists.bufferbloat.net; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=rXGVVwhTHPvx3X4Lc6ZV62tzeHHJcfjAOJN8nw1OuuI=; b=k5Tm8xX/prdD4jeZXmnq55Ox5VsjBCBIoYGBazJ/6ENBExXQPh6Vvg3smzYTHjYbsf YV5S8rLR4Mj6Hs4zCMvd3rDyOGz5Ae9dJMz8NZPjRxCmAJsv7Xhx7P2WgYvmxfnzyPOi Wqe41UDDTlCtoPSAaNYGcYJKM8BeRRIni5fbP2GDHiQOZR6VBWJCr2/yZzbzbrX2AFt+ JGkr7apimViyqwcfNEjApAqmDToe7VDe0XgZdiI64RH3eLQKaAXzVK6jVd9aaz0SbFpI DirI5pO3OaEARgT26fhchJK+W9qAS5yWBgTXC7yD96Ng7BDtsETa+8pgoz2o4A85LI8M gTQA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720716168; x=1721320968; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=rXGVVwhTHPvx3X4Lc6ZV62tzeHHJcfjAOJN8nw1OuuI=; b=k+H9POcfowJQU0OuC54BLkfYT6FOKD3igSY3rtRW9GSb3dE5q9/yUs7cIHg1tSsnS+ xlf2siW+nqqxj2G51UiguYTWxC871lvY2lto3ZXFo4ODTHSayaFU73qg5AIXsgVEz02N 5B94198XfoXLfJBCVnSwMOeotwOgYSuqpy7b+sJfEtajSiHQz1n51E7IV9YL3nzD9/Tr SMJO8Ayo42T20KrHZ/tQY9QlnxCW5XIrKICXtjDsMG4n0fZsRr+Vcwh4Z1hWjkyHM1AJ OYNeM+XEHjk8BIhfaW7xG+RTT6FRuJfAjBa4N3h1HhcDsWhDSJZz1gpWIYfFjKiMNTEJ 0lBQ== X-Gm-Message-State: AOJu0YxHoeysQmGLp29F5230bhnAbRcZxloEM2vfZ0/zqP9tQeJLsyrL IVxGqmjvApviBpPVsNGIP5tWAXrb5mzCL0ohNjLbzd20GpBs0B1xwIFvPbAbL9dUZyOLpXBw6YG gQE996jA/VNxXj5y6Au9N2pVam5XWetdT X-Google-Smtp-Source: AGHT+IEy0lYsyQ6z8ujDoewQvyABhRcqOFaPBo8YXBSGxXB0cpkyoBweTXNile9OOxjXm4dSkcXHdg+nSnYBGa4logE= X-Received: by 2002:a05:6870:348d:b0:258:4dcb:7d4a with SMTP id 586e51a60fabf-25eae7eea87mr7440022fac.16.1720716168448; Thu, 11 Jul 2024 09:42:48 -0700 (PDT) MIME-Version: 1.0 From: Dave Taht Date: Thu, 11 Jul 2024 09:42:36 -0700 Message-ID: To: Make-Wifi-fast Content-Type: multipart/alternative; boundary="000000000000fad235061cfb73c8" Subject: [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 16:42:50 -0000 --000000000000fad235061cfb73c8 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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 could use to see what is going wrong? A design tool for antennas? A debugging strategy for antenna placement? --=20 https://www.linkedin.com/feed/update/urn:li:activity:7203400057172180992/ Donations Drive. Dave T=C3=A4ht CSO, LibreQos --000000000000fad235061cfb73c8 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
It is really good to be completely over my head for a= change, to some extent. From:

https://f= orum.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 designi= ng and building their own MT79 based internet router and bridge for the pas= t 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=C2=A0terrible. I confess that I no longer have even the slight= est grip on how to go about debugging and improving antenna performance - a= re there beamforming variables worth sweeping in the mt76 driver? A piece o= f test gear we could use to see what is going wrong? A design tool for ante= nnas? A debugging strategy for antenna placement?


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