<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Bob,<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I'm also aware of the interpretation issue and would not consider a non-human button pusher (see below). I'm referring to automatically reporting the (human selected) bearings from the hound(s) to a central location (or any hunter) to do the triangulation for the best estimate fox lat/Lon. Each time a bearing is reported by a hound, it is reported via APRS. Anyone can grab them (thanks to APRS) and put them on the map and the SW will do the triangulation. One can drive around and do the pushing, or several hounds can do the pushing and the "system"
will give the best estimate Lat/Lon. My code does up to five fixes. Neat and very possible (with the required software).<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">That being said, however, I can imagine that looking at the last so-many bearings from the Doppler, one could define a quality factor and consider automatically sending a bearing only when the quality is 'good', or sending the quality factor and including it in the calculation. This is something I already have in my code because even with manual bearings, each hound will have a confidence factor in his bearing and that can be put into the calculation. I borrowed the concept from computer generated curves and surfaces so common in in the modern CG films, so that part is a piece of cake. Getting all the boxes to talk is beyond me right now.<o:p></o:p></SPAN></div>
<div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Dave, <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> As I said, I fully understand that the Doppler is not the ideal tool. It doesn't do everything, all the time, the best way. There are also very easy ways to mess up an otherwise good concept. I have been involved / interested in DF since the Navy around '65, and have some ideas I want to try which I think can improve the Doppler, but until I have one running, I can't brag; just try these ideas and either do good, or say it was fun trying.<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Do you know what (brand) Dopplers have you seen that have so much trouble with FSK? This makes perfect sense and is
precisely why I asked about the affect of APRS Squawks on them. I have the Greany board and the design looks pretty good. Without going into a full resume, I also have access to some pretty good test gear and a full understanding of what's going on inside and out (vagarious nature the RF ocean in which we live).<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Out of curiosity, what's your weapon(s) of choice?<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Which Doppler is in your basement?<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">73, Steve, K9DCI<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">==========================================<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Date: Thu, </SPAN><?xml:namespace
prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:date Month="3" Day="16" Year="2006"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">16 Mar 2006</SPAN></st1:date><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </SPAN><st1:time Hour="9" Minute="23"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">09:23:06</SPAN></st1:time><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> -0500<BR>From: "Robert Bruninga" <<A href="http://us.f353.mail.yahoo.com/ym/Compose?To=bruninga@usna.edu&YY=6879&order=down&sort=date&pos=0&view=a&head=b"><SPAN style="COLOR: #003399">bruninga@usna.edu</SPAN></A>><BR>Subject: Re: aprssig Reading APRS becons w/Dopplers?<BR><BR> ... it is best to interrupt that interface with a push button.<BR>Only the human eyeball and brain has the sense to interpret the data ...<BR> ... having it garbage up the entire APRS display with garbage, I finally put a push button on the front panel
...<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><BR>This worked beautifully.. de Wb4APR, Bob<BR>==============================<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Date: Thu, </SPAN><st1:date Month="3" Day="16" Year="2006"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">16 Mar 2006</SPAN></st1:date><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </SPAN><st1:time Hour="9" Minute="50"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">09:50:00</SPAN></st1:time><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> -0500<BR>From: "David Odom" <<A href="http://us.f353.mail.yahoo.com/ym/Compose?To=dodom@mindspring.com&YY=6879&order=down&sort=date&pos=0&view=a&head=b"><SPAN style="COLOR: #003399">dodom@mindspring.com</SPAN></A>><BR>Subject: Re: aprssig Reading APRS becons w/Dopplers?<BR><BR> ... I have found being able to listen to the receiver output will
help in determining what is useful date and what is garbage.<BR>I have participated in a fox hunt almost every month for 3 years and my <BR>Doppler is still in the basement. So far I am first to the fox as <BR>often as anyone without the hassle of setting up the Doppler. By the way you can forget using Doppler with digital signals such as posag paging. True FSK confuses the Doppler big time. Dave W4VOR <BR>=======================================================<o:p></o:p></SPAN></div> <div><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">=======================================================</SPAN></div></BLOCKQUOTE><p>
<hr size=1>Brings words and photos together (easily) with<br>
<a href="http://us.rd.yahoo.com/mail_us/taglines/PMall/*http://photomail.mail.yahoo.com">PhotoMail </a> - it's free and works with Yahoo! Mail.