<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
If you have the room/weight then we've got these GPS modules that I'd love to see tested on a balloon;<br>
<br>
<a href="http://nicegear.co.nz/gps/ultimate-gps-module-66-channel-w10-hz-updates/" target="_blank">http://nicegear.co.nz/gps/<u></u>ultimate-gps-module-66-<u></u>channel-w10-hz-updates/</a><br>
<br>
Adafruit have apparently tested them to 27km.<br>
<br>
There's a simple 5V breakout too depending on what batteries you're running;<br>
<br>
<a href="http://nicegear.co.nz/gps/ultimate-gps-breakout-66-channel-w10-hz-updates/" target="_blank">http://nicegear.co.nz/gps/ultimate-gps-breakout-66-channel-w10-hz-updates/</a><br></blockquote><div><br>Hi Hadly<br><br>
Yeah I'm sure they would work. Our payload carried venus GPS units from sparkfun. They definitely work above 60k feet. The balloon radio telemetry used that so we have fixes above 60k. I'm particularly fond of the venus units as I asked a bunch of outrageous performace requriements to the manufacturer and they got really detailed replies back to me the same day :P<br>
<br>Andre<br></div></div>