Is our system up and running (green tick?): http://dsync.dstar.info/

Good Dstar Manual: http://ladstar.org/feature.htm

Dplus transaction log (Can you find yourself when using dstar so you know you are hitting the network): http://www.dstarusers.org/

Dstar 101: http://www.dstar101.com/

A Look inside D-STAR Modulation: pdf