From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lb0-x235.google.com (mail-lb0-x235.google.com [IPv6:2a00:1450:4010:c04::235]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id B64D021F634 for ; Thu, 18 Dec 2014 07:10:26 -0800 (PST) Received: by mail-lb0-f181.google.com with SMTP id l4so1088599lbv.40 for ; Thu, 18 Dec 2014 07:10:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=AvDAKXiOYJOYNzsyptTFWi+b5qE1Y20LYqWriFfoFU4=; b=XFgvH0iAqbk7Lresoyze69xd+tdqMN4kIOP5GBkCvhZbwL0UsgdHmWu0GOR+kbwy/R +p1U6xsr5jiqWAZVqjntfeYxRtRA+ed2O0u3l5lBxBU3Z1dEVgSUuMd/8WjINlcqzBZ+ EcCPTM8cWn6WPo5KLyKUWHtcYqUeLESUztcQNjxAgCnLcDekDBcrq1m1mzQXmtLak847 p8H7gcMrY6cxsL22xX/rJ/lsCbhuwCWuzDECpZHoOqSL8YFHb/lKSddEJeIfEJQVrbWO oNe91wDwgKfjFxLkKKHA6Ik0bevhcvnLFzangsOgNQxTmAnzNVvIwMOKJamDj/GlT68Z 0t9A== MIME-Version: 1.0 X-Received: by 10.112.156.169 with SMTP id wf9mr2710015lbb.85.1418915423541; Thu, 18 Dec 2014 07:10:23 -0800 (PST) Received: by 10.152.125.168 with HTTP; Thu, 18 Dec 2014 07:10:23 -0800 (PST) In-Reply-To: References: <15610.1418851812@turing-police.cc.vt.edu> Date: Fri, 19 Dec 2014 02:10:23 +1100 Message-ID: From: Outback Dingo To: David Lang Content-Type: multipart/alternative; boundary=001a11c240b0c960c4050a7efdda Cc: cerowrt-devel@lists.bufferbloat.net Subject: Re: [Cerowrt-devel] Fwd: Announcing New airFiber24HD X-BeenThere: cerowrt-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: Development issues regarding the cerowrt test router project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Dec 2014 15:10:55 -0000 --001a11c240b0c960c4050a7efdda Content-Type: text/plain; charset=UTF-8 On Thu, Dec 18, 2014 at 9:49 AM, David Lang wrote: > > *15.9 bps/Hz* Spectral Efficiency. >>> >> > If they're using phase encoding or similar, that's pushing the ragged >> edge I >> > think. Won't take much dip in the S/N before that comes back to bite you > on the tookus, > > They support many encoding schemes, and will use all channels in each > direction. As conditions degrade, the speed will slow. > > The top speed is using 1024-QAM modulation, it will then fall back to > 256-QAM (which is the top that 802.11ac will use), and then to 64-QAM > (which is the top of 802.11n) > > This has far more in common with old fashioned microwave links than Wi-Fi > > Hey Dave, found this.... :) http://www.gizmag.com/build-your-own-satellite-pocketqube/35217/ > David Lang > > _______________________________________________ > Cerowrt-devel mailing list > Cerowrt-devel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cerowrt-devel > --001a11c240b0c960c4050a7efdda Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable


On Thu, Dec 18, 2014 at 9:49 AM, David Lang <david@lang.hm> = wrote:
*15.9 bps/Hz* Spectral Efficiency.

If they're using phase encoding or similar, that's pushing the ragg= ed edge I
think.=C2=A0 Won't take much dip in the S/N before that comes back to b= ite you on the tookus,

 They support many encoding schemes, and will use all channels in each direc= tion. As conditions degrade, the speed will slow.

The top speed is using 1024-QAM modulation, it will then fall back to 256-Q= AM (which is the top that 802.11ac will use), and then to 64-QAM (which is = the top of 802.11n)

This has far more in common with old fashioned microwave links than Wi-Fi

<= div>
Hey Dave, =C2=A0 =C2=A0found this.... :)=C2=A0http://w= ww.gizmag.com/build-your-own-satellite-pocketqube/35217/
=C2= =A0
David Lang

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