[ale] Digital Communications Conference

[George Allen]

Re SDR: I know, I read about the GNU SDR a year or so ago and want one.

What we're getting is in its infancy as well. But the concepts are similar
across the board. Imagine first responders being able to push back position
reporting and status info and communicate with no 'backbone' by relaying
through the mesh to unlink points. Then that POI gets consolidated to a
'common operating picture' of current dispositions, status, requirements. I
could see similar systems developing for both military and ham radio since
both deal with ad-hoc, no-infrastructure networks. As far as ham radios
mission for disaster relief and civil support, this would be a great thing.
On Sep 20, 2011 12:04 PM, "Jim Lynch" <ale_nospam at fayettedigital.com> wrote:
> On 09/20/2011 11:06 AM, George Allen wrote:
>> On Tue, Sep 20, 2011 at 9:12 AM, Jim Lynch
>> <ale_nospam at fayettedigital.com> wrote:
>>> I attended the DCC over the weekend in Baltimore. The DCC is aimed at
>>> discussing issues of digital communications specifically of interest to
>>> amateur radio.
>> Did they do any talks on mesh networks/routing?
>> Any references/parallels to the following:
>> JITRS: http://en.wikipedia.org/wiki/Joint_Tactical_Radio_System
>> WIN-T Inc 2:
http://en.wikipedia.org/wiki/PM_Warfighter_Information_Network-Tactical_(WIN-T)
> Yes and no. mesh networks/routing is in its infancy in amateur radio.
> There is some interest in getting all of the currently vertical systems
> to talk with each other. Bob Bruninga, father of the APRS protocol,
> gave a talk on the last day entitled "Universal Ham Radio Connectivity
> by Callsign". He was accompanied by Mark Braustein who is a D-Star
> proponent and expert and John Gorcos (from Cumming, BTW) who is actively
> building the Automatic Voice Relay System (AVRS). I'm sure the result
> will never rival anything the military implements since this is an all
> volunteer effort and has limited resources compared to DOD. The page,
> http://www.aprs.org/avrs.html covers a lot of the activity. I won't
> bother to waste most folks' time by outlining the efforts since it's
> well covered on the web site.
>
> By the way, Bob Bruninga is also an instructor at the Naval Academy. A
> pretty bright guy all around.
>
> There were two main threads of interest in this DCC. The SDR (software
> defined radio) and uses and extensions of APRS (Automatic Positioning
> Reporting System). Bob wants to change the acronym to Automatic
> Presense Reporting System to keep in step with his talk.
>
> SDR is the state of the art and is now exceeding the performance of
> analog radios dollar for dollar.
>
> Jim.
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