It's the equivalent of callsign "routed" text messaging. You broadcast data in a specific format locally on-air, and a listening station can alert the user and store a text message for them. If Internet gateways are available at both ends, the Internet can act as a transport between areas.
All of the brains is in the application software or Kenwood rigs (that also do this), in that they "see" a properly formatted text message string go by, parse it for the local user's callsign, and store the message if it's destined for them. Going the other way, the rig has you enter a callsign for the destination user and formats the message appropriately. It's basically "yet another" implementation of something similar to SMS in the cell phone world, kinda. Nate From: [email protected] [mailto:[email protected]] On Behalf Of Jay Maynard Sent: Thursday, February 05, 2009 7:48 AM To: [email protected] Subject: Re: [DSTAR_DIGITAL] APRS and D-Star On Thu, Feb 05, 2009 at 02:06:38PM -0000, n0uyx wrote: > OK so this being the case then why cant we send a MSG from one D-Star > radio or user to the other? I was told here that can't be done. But if we > can send HIGH speed data then of course it can be done if it's not being > done right now is only maybe because somebody hasn't designed the software > for it? Is this right? There are two flavors of D-Star: DV and DD. The high speed (128KBPS) 1200 MHz stuff is DD. The average user radio is DV. The two data streams have different purposes, and a DV radio can't interpret (or, right now, even receive) a DD stream. Explain something to me. I don't know much at all about APRS (and what I know about it leads me to find it supremely uninteresting). What is this MSG capability you keep harping on about, exactly? What is it used for, and how is it transmitted? -- Jay Maynard, K5ZC at K6ZC port B http://www.conmicro.com http://www.k6zc.org http://www.tronguy.net http://jmaynard.livejournal.com (Yes, that's me!) http://www.hercules-390.org [Non-text portions of this message have been removed]
