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From 41,600 feet, the radio footprint is about 251 miles in all
directions (radius). In the following screen shot, the balloon is
at the center. The smaller circle is the radio footprint (notice
how all of the recent radio receptions are inside that circle?) and
the larger circle is 577 miles in radius:<br>
<br>
<img src="cid:part1.08060004.09070102@homeside.to" alt=""><br>
<br>
APRSISCE/32 will show you radio footprints for stations flying at
altitude as will aprs.fi, IIRC.<br>
<br>
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32<br>
<br>
<div class="moz-cite-prefix">On 7/22/2014 7:48 PM, Paul Bramscher
wrote:<br>
</div>
<blockquote cite="mid:53CEF849.9030608@comcast.net" type="cite">
<pre wrap="">I've not yet had the opportunity to track a balloon. Anyone know what
to expect for the radio footprint on this one, or high altitude balloons
in general?
On the <a class="moz-txt-link-freetext" href="http://spacenear.us/tracker/">http://spacenear.us/tracker/</a> site I'm curious about the blue
circles surrounding the various balloons. Do these represent the footprint?
73
Paul, KD0KZE
On 7/22/2014 11:58 AM, Robert Bruninga wrote:
</pre>
<blockquote type="cite">
<pre wrap="">G6UIM reports a Balloon launched in the UK is approaching Washington
state from across Asia and the Pacific right now.
See:<a class="moz-txt-link-freetext" href="http://spacenear.us/tracker/">http://spacenear.us/tracker/</a> look for Balloon B-63
It is being well received by the APRS network in Canada, Washington and
Oregon as it approaches Vancoover Island as shown here:
<a class="moz-txt-link-freetext" href="http://aprs.org/balloons/M0XER-3.jpg">http://aprs.org/balloons/M0XER-3.jpg</a>
That image from Lynn, author of APRSIS32.
Bob, Wb4APR
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<pre wrap="">
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