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<DIV dir=ltr align=left><SPAN class=125024521-23032006><FONT face=Arial
color=#0000ff size=2>Main problems here are that a higher data rate means less
energy per bit, and GPS receivers don't usually output more than one position
per second anyway. A 1200 baud channel (assuming a continuous
transmission) can handle a 5-hz update rate just fine, if you use a reasonably
efficient format.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=125024521-23032006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=125024521-23032006><FONT face=Arial
color=#0000ff size=2>So the question is, what are you trying to
accomplish?</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=125024521-23032006><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=125024521-23032006><FONT face=Arial
color=#0000ff size=2>Scott</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=125024521-23032006><FONT face=Arial
color=#0000ff size=2>N1VG</FONT></SPAN></DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> aprssig-bounces@lists.tapr.org
[mailto:aprssig-bounces@lists.tapr.org] <B>On Behalf Of </B>Andrew
Rich<BR><B>Sent:</B> Thursday, March 23, 2006 1:38 PM<BR><B>To:</B> TAPR
List<BR><B>Subject:</B> [aprssig] APRS high speed<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><SPAN class=114473521-23032006><FONT face=Arial
size=2>Gudday</FONT></SPAN></DIV>
<DIV><SPAN class=114473521-23032006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=114473521-23032006><FONT face=Arial size=2>Been looking at
radar technology the last few days and it begged me to ask the
question.</FONT></SPAN></DIV>
<DIV><SPAN class=114473521-23032006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=114473521-23032006><FONT face=Arial size=2>Has anyone thought
/ played with APRS mobile at high data rates ?</FONT></SPAN></DIV>
<DIV><SPAN class=114473521-23032006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=114473521-23032006><FONT face=Arial size=2>The planes uses
pulsed transmissions and very fast.</FONT></SPAN></DIV>
<DIV><SPAN class=114473521-23032006><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=114473521-23032006><FONT face=Arial size=2>On a much smaller
scale i would like to play with hooking the GPS straight into a LIPD module
and use that - range 100 m </FONT></SPAN></DIV>
<P><FONT face=Arial size=2>-----------------------------------------<BR>Andrew
Rich<BR>Amateur radio callsign VK4TEC<BR>email: </FONT><A
href="mailto:vk4tec@tech-software.net"><FONT face=Arial
size=2>vk4tec@tech-software.net</FONT></A><BR><FONT face=Arial size=2>web:
http://www.tech-software.net<BR>Brisbane AUSTRALIA </FONT></P>
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