[aprssig] FM CW Balloon launch Annapolis Wed at 11 AM

Robert Bruninga bruninga at usna.edu
Wed Apr 17 07:14:50 CDT 2013

*Subject:* Re: [aprssig] FM CW Balloon launch Annapolis Wed at 11 AM

Ø  What is generating the lat/long/alt Bob?

The GPS and Basic Stamp.  See them in the photo on the web page.


Sam K3BY

Sent from my iPhone

On Apr 16, 2013, at 8:51 PM, Robert Bruninga <bruninga at usna.edu> wrote:

A small (2 party balloon) payload sending FM CW on 433.72 +/- MHz may be
heard within a few dozen miles of Annapolis Maryland around Noon on Wed.
It sends LAT/LON/ALT using a modified CW and a KeyFob 10mw FM transmitter.

The balloon will only go to 5000’ and wont have a range beyond 50 miles or

See details: http://aprs.org/balloons.html

You will see local APRS bulletins from the chase team, but You wont see the
position on APRS unless someone has time to take the decoded LAT/LON/ALT in
CW and enter them as an object.


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