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<DIV><FONT face=Arial size=2>Yes and no.... </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Yes, with the proper GPS receiver. "Da Rules"
say that a gps unit can give position reports if it is >18Km (I forget the
exact number) as long as it is not moving faster than 500m/s. You can do
one or the other, but not too high and not too fast at the same time. So
since it impossible to go into orbit at less than 17,000mph, when your garden
variety GPS gets to 18Km altitude, it will stop reporting positions. Note
that most GPS manufacturers read the rules as EITHER 18km or 500m/s, hence there
are MANY MANY gps units that won't go higher than 18k/m... the GPS18 from garmin
interprets the rules correctly thrus is good for balloon use over 18km
up.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>PCSat has a GPS on board and for a while did report
it's position because it had an exempted GPS receiver. Even though it's in
orbit, it's in a lower orbit than the GPS satellites, so they are still overhead
relative to PCSAT. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Anyone know if these rules apply to the new
european gps system?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Does anyone know if the GPS system will work when a
receiver it higher than the GPS satellites? Seems like it should from a
purely mathematical standpoint.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Wes</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=vk4tec@tech-software.net
href="mailto:vk4tec@tech-software.net">Andrew Rich</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=aprssig@lists.tapr.org
href="mailto:aprssig@lists.tapr.org">TAPR List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, April 23, 2006 5:44
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [aprssig] Does GPS work in space
?</DIV>
<DIV><BR></DIV>
<DIV> </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: <A
href="http://www.tech-software.net">http://www.tech-software.net</A><BR>Brisbane
AUSTRALIA </FONT></P>
<DIV> </DIV>
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