[HBQRP] QRP 30M beacon circuit for MIT Balloon experiments

[Arnie Grubbs]

Hi HBQRP groupies..

Thought that I would pass this along to the group this link as something interesting
for the QRP'ers and kit builders.

http://web.mit.edu/bgelb/www/balloon/hfbeacon/


Quote from the link page, 
....
The above transmitter outputs around 1.5W on 30 meters using a 12V supply. It is on-off keyed, and
the included Atmel microcontroller receives NMEA sentences from a GPS, and generates CW and
Hellschreiber messages, which are sent via radio. The beacon was designed to be low cost (about
$25 per unit) so it can be used as part of an Atlantic-crossing balloon program. We expect to lose
a lot of them, so low cost and repeatability are important.

....

There is a link to the schematic on the page, and a picture of the unit.

73 - Arnie KA0NCR