Thanks Martin, but Red Box is not available in USA; it
does not meet FCC requirements and cannot be sold here.
For USA we have PowerFLARM. Currently PowerFLARM portable
is shipping, with the blind-mounting unit (analog to Red Box)
Real Soon Now (Urs will give a timeline update at the
SSA convention next week). PowerFLARM incorporates transponder
detection (Mode C, Mode S, ADS-B in).
Thanks for the comments,
Best Regards, Dave
PS details he
http://www.gliderpilot.org/FLARM