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<font size=3>At 07:18 PM 2014-03-16, Keith VE7GDH wrote:<br>
>The exception <br>
>would be devices that are capable of doing profile switching…
changing <br>
>the path above a certain altitude and changing again on the way
back <br>
>down. For high altitude balloons, no path is needed at all when there
<br>
>at the edge of space. It's only at the start and end of the flight
<br>
>that any path is needed.<br><br>
I'm wondering if is needed. However before I dig myself into
a hole what is the descent rate of a balloon at lower altitudes and the
standard balloon beaconing interval?<br><br>
I'm thinking that the last transmission an igate would receive would be
when the balloon is at, guessing, 600' above the ground. How
far horizontally is the collapsed balloon going to travel in that
600'?<br><br>
In an ideal world the balloon should be beaconing relatively rapidly the
last 500' before it hits the ground. But I suspect that a ground
radar altimeter isn't generally include in amateur radio balloon
launches. <smile><br><br>
Tony</font></body>
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