From owner-freebsd-chat Wed May 3 13:57:15 2000 Delivered-To: freebsd-chat@freebsd.org Received: from uswgco34.uswest.com (uswgco34.uswest.com [199.168.32.123]) by hub.freebsd.org (Postfix) with ESMTP id 06CF637B551 for ; Wed, 3 May 2000 13:57:12 -0700 (PDT) (envelope-from matt@kc0dxw.uswc.uswest.com) Received: from egate-ut3.uswc.uswest.com (egate-ut3.uswc.uswest.com [148.157.122.201]) by uswgco34.uswest.com (8.10.0/8.10.0) with ESMTP id e43Kv7c14444 for ; Wed, 3 May 2000 14:57:11 -0600 (MDT) Received: from netmail3.uswc.uswest.com (localhost [127.0.0.1]) by egate-ut3.uswc.uswest.com (8.8.8/8.8.8) with ESMTP id OAA15165 for ; Wed, 3 May 2000 14:57:06 -0600 (MDT) Received: from kc0dxw.uswc.uswest.com ([151.116.151.204]) by netmail3.uswc.uswest.com (Netscape Messaging Server 3.61) with ESMTP id AAA613A for ; Wed, 3 May 2000 14:57:00 -0600 Received: by kc0dxw.uswc.uswest.com (Postfix, from userid 1007) id E2E37456; Wed, 3 May 2000 14:56:59 -0600 (MDT) Date: Wed, 3 May 2000 14:56:59 -0600 From: Matt Meola To: chat@FreeBSD.ORG Subject: Re: GPS heads up Message-ID: <20000503145659.E52203@kc0dxw.uswc.uswest.com> References: <200005031952.NAA01317@nomad.yogotech.com> <7684.000503@nc.rr.com> <200005032052.OAA01634@nomad.yogotech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0.1i In-Reply-To: <200005032052.OAA01634@nomad.yogotech.com>; from nate@yogotech.com on Wed, May 03, 2000 at 02:52:01PM -0600 X-URL: http://www.qsl.net/kc0dxw Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Wed, May 03, 2000 at 02:52:01PM -0600, Nate Williams wrote: > > I don't know why they even continued to use SA after they released > > Differential GPS, which is good to 5 meters and less. It sort of got > > around the signal degredation. But, for the folks who didn't want to > > sink $500 into a DGPS unit, this news is great. It is sort of > > surprising since it is 6 years earlier than planned. > > Because in order to use DGPS, you must be near a DGPS transmitter, which > for most of the US (anywhere but the two coasts) is not a feasible > option. http://www.tapr.org/ Tucson Amateur packet Radio group. They've got a kit DGPS transceiver which you can place in a known location to effect DGPS; set it up at your house, and anyone near enough can get enhanced GPS positioning. Not that it's all that useful, now... -- Matt Meola KC0DXW http://www.qsl.net/kc0dxw Bailey, CO ARES D6 AEC To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message