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<DIV><FONT face=Arial size=2>Vic,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Is this a commercial project or amateur to
amateur?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Jeff</FONT></DIV>
<DIV><FONT face=Arial size=2>KT2K</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=victorf@windreader.com href="mailto:victorf@windreader.com">Vic
Fraenckel</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=aprssig@lists.tapr.org
href="mailto:aprssig@lists.tapr.org">APRS Sig</A> ; <A
title=TinyTrak@yahoogroups.com
href="mailto:TinyTrak@yahoogroups.com">TinyTrack</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, October 19, 2005 9:06
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [aprssig] RE:Transmitting data
to a hot air balloon</DIV>
<DIV><BR></DIV>
<DIV><STRONG><FONT size=2>I need to apologize for my original post on
this subject. I am the OP and was not sufficiently detailed with my needs.
Here is the original query:</FONT></STRONG></DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG> </DIV>
<DIV>>Suppose I wanted to transmit a stream of weather data to the pilot of
a hot air >balloon. The balloon would be not be more than a 5 mile radius
from the >transmission site and at an altitude of no more than 5000 feet.
The balloon would >have receive-only capability. <BR><STRONG><FONT
size=2>></FONT></STRONG><BR>>What hardware would I need to send the data
stream from my position to the >balloon. </DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG> </DIV>
<DIV><STRONG><FONT size=2>I did not want to imply that I wished to send data
from one of the APRS compatible weather stations.
T</FONT></STRONG><STRONG><FONT size=2>he data stream would come from an
instrument that measures wind speeds at verious heights in the atmosphere. I
make such an instrument and am currently in the process in modernizing it. My
market niche is the hot air balloon field. The data is calculated from
tracking a small balloon with a theodolite and the system computes wind speed
and direction at pre-determined intervals. I have been asked if it would be
possible to devise a system to transmit this wind data to a flying balloon in
near real-time. The data is available from the computer as a RS232 compatible
data stream which could be formated in any way necessary to support the
requirements for packet transmission. I would like to know what radio/TNC
components I would need in order to provide this capability. I am currently
thinking of using a smal thermal printer in the balloon to present the wind
data to the pilot, but have not ruled out a PDA type solution. A laptop in the
balloon is awkward at best and potentially dangerous. </FONT></STRONG></DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG> </DIV>
<DIV><STRONG><FONT size=2>I haope this clarifies my
question.</FONT></STRONG></DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG> </DIV>
<DIV><STRONG><FONT size=2>Any enlightenment will be
appreciated.</FONT></STRONG></DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG> </DIV>
<DIV><STRONG><FONT size=2>Vic</FONT></STRONG></DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG> </DIV>
<DIV><STRONG><FONT
size=2>________________________________________________________</FONT></STRONG></DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG> </DIV>
<DIV><STRONG><FONT size=2>Victor Fraenckel - The
Windman <BR>victorf ATSIGN
windreader DOT
com<BR>KC2GUI
</FONT></STRONG></DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG> </DIV>
<DIV><STRONG><FONT size=2></FONT></STRONG> </DIV>
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