Glider pilot - vario project

Projects General Guidance
4

I'd suggest going an audio route and hack the below audio transmitter to send beeping vario audio output to an FM receiver in the cockpit.

http://www.ebay.com/itm/3-5mm-Car-Wireless-FM-Radio-Transmitter-For-iPhone-5S-5C-4S-iPod-Samsung-S4-2014-/281293702534?pt=LH_DefaultDomain_2&var=&hash=item417e694586