Return-Path: Received: from [65.173.216.71] (HELO mtasmtp1-clev.cle.ms.philips.com) by logan.com (CommuniGate Pro SMTP 4.2b6) with ESMTP id 223184 for lml@lancaironline.net; Wed, 23 Jun 2004 10:58:07 -0400 Received: from picker.com ([149.59.192.105]) by mtasmtp1-clev.cle.ms.philips.com (Lotus Domino Release 5.0.11) with SMTP id 2004062310572881:18902 ; Wed, 23 Jun 2004 10:57:28 -0400 Received: from [149.59.204.68] (HELO Philips.com) by picker.com (CommuniGate Pro SMTP 3.3b1) with ESMTP id 16584902 for lml@lancaironline.net; Wed, 23 Jun 2004 10:57:36 -0400 Message-ID: <40D99A4C.8070908@Philips.com> Date: Wed, 23 Jun 2004 10:57:16 -0400 From: Rob Logan Reply-To: Rob@Logan.com User-Agent: Mozilla Thunderbird 0.5 (X11/20040214) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Lancair Mailing List Subject: Re: [LML] Re: XM weather References: In-Reply-To: X-MIMETrack: Itemize by SMTP Server on mtasmtp1-clev/P/SERVER/PHILIPS-CLE(Release 5.0.11 |July 24, 2002) at 06/23/2004 10:57:28 AM, Serialize by Router on mtasmtp1-clev/P/SERVER/PHILIPS-CLE(Release 5.0.11 |July 24, 2002) at 06/23/2004 10:57:59 AM, Serialize complete at 06/23/2004 10:57:59 AM Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii; format=flowed > one HUGE advantage that XM WX weather has over the other guys - real > time weather as opposed to updates every 5 minutes like WSI. WSI like Unisys is one of the three NEXRAD Information Dissemination Service (NIDS) providers that has direct access to the WSR-88D hotline. unlike http://www.wxworx.com/ who must buy from one the the three. while the storm center checks each WSR-88D every min for new images, if the radar is in clear air mode it takes around 10mins for it to publish all its products.. in precipitation mode it spins faster and takes about 5mins to publish all the products. (there is also a severe weather mode that some products are dropped.) http://sysu1.wsicorp.com/unidata/intro.html so while some mosaics are built every 5mins, it doesn't necessarily have all new WSR-88D data as the each radar has different publish times. http://weather.noaa.gov/monitor/radar/ plus both wsi and xm take over 15mins to download all their products, so what you see will ALWAYS be old.. lots of your tax $$ and people make this work. don't let some clueless sales guy get away with a statement like that. http://www.roc.noaa.gov/nnow.asp now, the XM satalight is more powerful than the rented GE satalight WSI uses, and I do like the XM mosaic, over the WSI one, so there are lots things to compare, but delay isn't one of them.