X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 17 Jul 2012 16:27:45 -0400 Message-ID: X-Original-Return-Path: Received: from imr-ma06.mx.aol.com ([64.12.78.142] verified) by logan.com (CommuniGate Pro SMTP 5.4.6) with ESMTP id 5656322 for lml@lancaironline.net; Tue, 17 Jul 2012 15:51:34 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.78.142; envelope-from=Sky2high@aol.com Received: from mtaomg-ma03.r1000.mx.aol.com (mtaomg-ma03.r1000.mx.aol.com [172.29.41.10]) by imr-ma06.mx.aol.com (8.14.1/8.14.1) with ESMTP id q6HJosgc031012 for ; Tue, 17 Jul 2012 15:50:54 -0400 Received: from core-mtd004c.r1000.mail.aol.com (core-mtd004.r1000.mail.aol.com [172.29.235.205]) by mtaomg-ma03.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 59AE2E000085 for ; Tue, 17 Jul 2012 15:50:54 -0400 (EDT) From: Sky2high@aol.com X-Original-Message-ID: <35af.d0366e1.3d371c1d@aol.com> X-Original-Date: Tue, 17 Jul 2012 15:50:54 -0400 (EDT) Subject: Re: [LML] Re: Experimental TCAS system? X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_35af.d0366e1.3d371c1d_boundary" X-Mailer: AOL 9.6 sub 168 X-Originating-IP: [67.175.156.123] x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:455589376:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d290a5005c21e5e3b --part1_35af.d0366e1.3d371c1d_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Paul, 1. As today, some of your traffic is not WAAS located, but deduced by radar and xpdr. 2. TIS-B replies (transmissions) are tailored to the puck surrounding the ADS-B Out aircraft. Thus, TIS-B traffic will not be true if you are near the edge of the other guy's puck and someone is bearing down on you that is located outside his/her/its puck. 3. You are not contributing to the accuracy of the traffic resolution system if you are not transmitting your WAAS position, vector and trends. Thus, the other guys/gals/them in the puck are getting your inaccurate position information. 4. That's OK, buy the cheap partial solution today - you'll still need to get the full boat by 2020. 5. Remember that if everyone is getting weather in the cockpit, the traffic around a storm could get a bit denser than you might be comfortable with. 6. Also, if everyone is thinking like you the system won't improve until 2020. Someone has to be sending ADS-B Out. There is some new neat Garmin stuff go look at _https://buy.garmin.com/shop/shop.do?cID=272&pID=63471_ (https://buy.garmin.com/shop/shop.do?cID=272&pID=63471) and _https://buy.garmin.com/shop/shop.do?cID=272&pID=93601_ (https://buy.garmin.com/shop/shop.do?cID=272&pID=93601) Compare and Contrast................ think about how you would prefer the info to be displayed. The Garmin 88 seems to be pretty intelligent. Scott In a message dated 7/17/2012 2:30:51 P.M. Central Daylight Time, pjdmiller@gmail.com writes: If I have ads-b in only and my traffic is waas positioned, then why is this not accurate? If I don't broadcast then the other traffic may not see me in non-radar areas but I don't see how that decreases the accuracy of my own traffic info on my ship. Please explain. Paul On 2012-07-17, at 9:51, Sky2high@aol.com wrote: > it is not going to be accurate for you since you have not broadcast your own information (ADS-B Out -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html --part1_35af.d0366e1.3d371c1d_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Paul,

1. As today, some of your traffic is not WAAS located, but deduc= ed by=20 radar and xpdr.

2. TIS-B replies (transmissions) are tailored to the puck surrounding = the=20 ADS-B Out aircraft. Thus, TIS-B traffic will not be true if you are near th= e=20 edge of the other guy's puck and someone is bearing down on you that is loc= ated=20 outside his/her/its puck.

3. You are not contributing to the accuracy of the traffic resolu= tion=20 system if you are not transmitting your WAAS position, vector and=20 trends. Thus, the other guys/gals/them in the puck are getting y= our=20 inaccurate position information.

4. That's OK, buy the cheap partial solution today - you'll still = ;need=20 to get the full boat by 2020.

5. Remember that if everyone is getting weather in the cockpit, the tr= affic=20 around a storm could get a bit denser than you might be comfortable with.

6. Also, if everyone is thinking like you the system won't improve unt= il=20 2020. Someone has to be sending ADS-B Out.

There is some new neat Garmin stuff

go look at

http= s://buy.garmin.com/shop/shop.do?cID=3D272&pID=3D63471

and

http= s://buy.garmin.com/shop/shop.do?cID=3D272&pID=3D93601

Compare and Contrast................ think about how you would prefer = the=20 info to be displayed. The Garmin 88 seems to be pretty intelligent.

Scott

In a message dated 7/17/2012 2:30:51 P.M. Central Daylight Time,=20 pjdmiller@gmail.com writes:

= If I=20 have ads-b in only and my traffic is waas positioned, then why is this no= t=20 accurate? If I don't broadcast then the other traffic may not see m= e in=20 non-radar areas but I don't see how that decreases the accuracy of my own= =20 traffic info on my ship. Please explain.

Paul

On=20 2012-07-17, at 9:51, Sky2high@aol.com wrote:

> it is not going = to be=20 accurate for you since you have not broadcast your own information (ADS-B= =20 Out

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For archives and unsub=20 http://mail.lancaironline.net:81/lists/lml/List.html<= /DIV> --part1_35af.d0366e1.3d371c1d_boundary--