From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-yx0-f171.google.com (mail-yx0-f171.google.com [209.85.213.171]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 4931B200627 for ; Mon, 12 Mar 2012 15:23:34 -0700 (PDT) Received: by yenl11 with SMTP id l11so4868530yen.16 for ; Mon, 12 Mar 2012 15:23:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=5p03fy4b/htKTW3ZROFUqoCSIvnxHlttYriPwb4PjYQ=; b=CWrz3Sue2haCl89lVMtGcDMbHMNnqefJ8go7iRCgl5Kl6w6WPhpyoE2IL3YsokPii7 VkJxPTW7DY470TR1p5c+ksWmiGqxnZ3mW8LNQ6ulYGmpxR4Iir3uCtySOLlGi2fCojSX 6/x96KloIqGWYyz0ig/KD/8GVOn8AeGJ5i8Z02P4Thclqh0w6xV6I/nAg3tQshYkAA7I d0dYs8Tlj+jHdag3uwYG1v3FfjzZZ8B8n2OcwWQp7x65jJyjg8kIXFlfpf1TiVcbY+s+ tX2g/YX1K3Xwn2JnDSoiyTxYSzgfYYW1SBoe26fsgLvK2iTLYyz+qz2/5GPwjljzDE8I AEng== Received: by 10.182.85.8 with SMTP id d8mr9544993obz.29.1331591013104; Mon, 12 Mar 2012 15:23:33 -0700 (PDT) MIME-Version: 1.0 Sender: tz2026@gmail.com Received: by 10.182.68.164 with HTTP; Mon, 12 Mar 2012 15:23:13 -0700 (PDT) In-Reply-To: References: <20120312210345.GC17357@thyrsus.com> <20120312212608.GC17895@thyrsus.com> <20120312213946.GE17895@thyrsus.com> From: tz Date: Mon, 12 Mar 2012 18:23:13 -0400 X-Google-Sender-Auth: MZHEzOrVW9L3pGAD6sUI9v7x424 Message-ID: To: Patrick Maupin Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: thumbgps-devel@lists.bufferbloat.net Subject: Re: [Thumbgps-devel] Build vs. modify vs. what should we be doing anyway? X-BeenThere: thumbgps-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 Mar 2012 22:23:34 -0000 OK, it is a 2 sided board, but you would have to find the 1PPS pin (and it looks hard to solder to), attach a wire and and route it somewhere - it is a SiRF III so has the larger jitter. Since the GPS patch antenna is on the board, the board would have to be in the sky view so you would have to run the PPS all the way to the router if one of the pins isn't DCD, CTS or some other line. On Mon, Mar 12, 2012 at 6:10 PM, Patrick Maupin wrote: > On Mon, Mar 12, 2012 at 4:39 PM, Eric S. Raymond wrote: >> Sorry, my eyes aren't educated enough. (I'm an ex-mathematician; what >> relatively little I know about electronics design I've picked up by >> osmosis doing software). What does it say? > > It says: > > I am a very simple board. =A0My major components are: > > - USB module > - USB patch antenna > - Small PL2303 clone (fitting in with your lawsuit theory) > - Simple 5v -> 3.3v voltage regulator > - Coin cell battery > - Diode so as not to drain battery during operation > - USB connector > > There is nothing there that would require 4 layers, and all the > traces seem to "go somewhere".