DR OM Before I registrate as user of SD I'd like to know if it can cooperate with SignaLink USB from Tigertronics. Have you ever tried working SignaLink box, and if so what do you think of it? I'd like to become a user of the program when I hear from you. Vy 73 de OZ9V, Poul QSL manager for OZ7SAC and OZ8MW