Hi FASTRAC keps elements worked very well with HRD.   I’ve Used HRD for Doppler correction to RX O/OREOS, Also I've heard a very strong FASTRAC  Beacon at 145.825 .   O/OREOS was pumping a very strong signal, Decoded with sound card software UISS and Multipsk . See a movie clip at http://www.youtube.com/watch?v=2pyY4NwScJ4   73, Nader