[aprssig] UDR Tracker Demo

Bryan Hoyer bhhoyer at gmail.com
Tue May 21 16:24:55 CDT 2013


Websockets are the replacement for AJAX. Fully Asynchronous Bi-Directional Data inside a web-browser  Been around about 5 years but has really taken off in the last year or so. We can also provide a regular BSD socket interface. see websockets.org for more info.

Traffic looks the same as the raw packets you get from APRS.FI (we use the same FAP parser with patches to handle encapsulated packets) no bit stuffing required. We have sample apps going both directions.

It's probably a bit premature to engage as we're still heads down on the RF section, I was hoping to give a preview to developers at the show.

We'll be releasing an online interface to the radio and that would be a great time to enter discussions.

Thanks for your interest!
Bryan K7UDR


On May 21, 2013, at 2:08 PM, "Lynn W. Deffenbaugh (Mr)" <ldeffenb at homeside.to> wrote:

> What, may I ask, is a "websocket port"?  I've heard of a port on which a server listens and a client connects a socket.  And I've heard of a web interface, which implies the HTTP protocol over a socket connection.  But when you put all three words together, I haven't got a clue just what it is nor how I would connect a client to it.
> 
> Also, what kind of traffic comes over the connection?  AX.25 implies a bit streaming protocol wherein the client is responsible for all of the low-level bit stuffing.  Or is it a KISS-type interface where the AX.25 is organized in the actual data bytes and the UDR does the bit-stuffing?  Or is it something else entirely?
> 
> Do you have any sample client code or complete specifications of the interface that could be used by an APRS client application to both send and receive APRS (AX.25 UI) packets?
> 
> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
> 
> On 5/21/2013 4:37 PM, Bryan Hoyer wrote:
>> The Radio Interface is Via Ethernet. We run node.js
>> 
>> There's a webapp for radio control and a websocket port for ax.25 receive traffic.
>> 
>> Bryan K7UDR
>> 
>> On May 21, 2013, at 11:06 AM, Andrew P. <andrewemt at hotmail.com> wrote:
>> 
>>> Maybe Georg for APRSdroid?
>>> 
>>> What type of interface is your radio using? USB serial? TCP or UDP port over IP over Ethernet?
>>> 
>>> Andrew Pavlin, KA2DDO
>>> ------Original Message------
>>> From: Bryan Hoyer
>>> To: andrewemt at hotmail.com
>>> To: KJ4ERJ at arrl.net
>>> Sent: May 21, 2013 1:26 PM
>>> Subject: Re: [aprssig] UDR Tracker Demo
>>> 
>>> Thanks Guys,
>>> 
>>> 
>>> I'm going to put together a system overview next month and forward it to you for input.
>>> 
>>> 
>>> I know Curt Mills with XASTIR is there anyone else I should be talking to?
>>> 
>>> 
>>> I have a yahoo group for developers and interested parties, should we use that or the aprssig?
>>> 
>>> 
>>> http://groups.yahoo.com/group/UniversalDigitalRadio/
>>> 
>>> 
>>> Thanks,
>>> Bryan
>>> 
>>> 
>>> 
>>> Hi all,
>>> 
>>> We'll be showing a demo of the UDR Tracker at Dayton in Booth EH0515. I would like to talk with APRS client software developers about their thoughts and needs for this network based tracker, as well as getting feedback from APRS users.
>>> 
>>> Basil, our SW guy will be there as well.
>>> 
>>> Stop by if you can!
>>> Bryan K7UDR
>>> NWDigitalRadio.com <http://NWDigitalRadio.com>
>>> 
>>> 
>>> _______________________________________________
>>> aprssig mailing list
>>> aprssig at tapr.org
>>> http://www.tapr.org/mailman/listinfo/aprssig
>>> 
>>> 
>>> Sent from my Verizon Wireless BlackBerry
>>> 
>>> 
>>> 
>>> Sent from my Verizon Wireless BlackBerry
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