"D-PRS (DPRS) is the act of converting Icom GPS information generated by Icom D-STAR radios in GPS mode into TNC2 fomatted APRS
strings. It is important to note that D-PRS is not a protocol but a conversion specification. D-STAR digital voice mode
(DV mode) is a 4800 bps digital data stream with no error detection or correction. Each transmission consists of a RF
header followed by a 4800 bps stream of bits. 3600 bps of this stream is dedicated to the AMBE encoded voice.
The remaining 1200 bps is used for synchronization and user-defined capabilities. Icom made use of this user-defined
space to pass radio messages (simple display messages) and to pass serial data." SOURCE -http://www.aprs-is.net/DPRS.aspx
The D-STAR GPS data is sent to the APRS-IS servers as would the normal APRS data from your analog tinytracker on 144.390, however you are not transmitting on 144.390. The method is similar but is done by the DSTAR repeater you are communicating with already, automatically when you transmit without needing a seprate tracker and transmitter and antenna system on 144.390.
Current DPRS Activity - Opens new browser window.
D-PRS IGates - Opens new browser window
Recently Active D-STAR Repeaters - Opens new browser window
µSmartDigiTM APRS® Digipeater and µSmartDigiTM D-GateTM D-STAR Gateway