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[aprssig] APRS Calling

Robert Bruninga bruninga at usna.edu
Sun Oct 21 20:29:55 UTC 2012


Bruce... but your plan is good and can work RIGHT NOW TODAY too.  And
it is just the frist step of AVRS.

But yours can work NOW.  Everyone with a D710, D72, or FTM-350, or VX8
can receive  your proposed GROUP call and with the press of ONE
BUTTON, instantly go to the GROUP repeoater and talk.

The FREQ-QSY Format is already there.  The radios will do the
one-button QSY, and it will all work, just as you have suggested.
Now... all you need to do is get people to actually USE their APRS
radio for communications instead of just driving, watching APRS.FI and
otherwise ignoring it.

Good luck!
I support your plan!  Bob, WB4APR


On Sun, Oct 21, 2012 at 3:52 PM, Robert Carleton <rbc at rbcarleton.com> wrote:
> Bob,
>
> Thanks for your reply. The AVRS concept definitely goes much further than my APRS calling procedure. I was just trying to implement a simple procedure using very basic facilities of APRS. When we try to get volunteers for events, we don't have much control over the kinds of equipment they bring. I was trying to support using very basic APRS systems during times when the telecommunications grid is unavailable.
>
> On the other hand, AVRS is a much better idea. I hope to see it more widely implemented.
>
> Best,
>
>                         --Bruce
>
>
> On Oct 21, 2012, at 11:51 AM, Robert Bruninga wrote:
>
>>> I've been working on a simple procedure for calling stations
>>> via APRS text messages as an alternative to voice calling....
>>
>> This has been the #1 focus of APRS since 2001 when we came up with the
>> AVRS concept.  See http://aprs.org/avrs.html
>>
>> You want to talk to someone anywhere on the planet, you send him a QSO
>> message and then the AVRS engine makes the connection via Echolink,
>> IRLP or Dstar or any other system.
>>
>> Everything is in place EXCEPT the Dstar, the Echolink and IRLP
>> gateway.  Even Kenwood and Yaeus have built-in the auto-QSY feature at
>> the push of a button.  John Gorkos has writen a preliminary AVRS
>> engine that will tell you where the VOIP node are, but we still dont
>> have the automatica AVRS engine to glue it all together.
>>
>> Bob, WB4APR
>>
>> On Sun, Oct 21, 2012 at 2:12 PM, Robert Carleton <rbc at rbcarleton.com> wrote:
>>> I've been working on a simple procedure for calling stations via APRS text
>>> messages as an alternative to voice calling. I thought I'd float it with the
>>> APRS community for comment.
>>>
>>> APRS calling borrows ideas implemented in Digital Selective Calling, a part
>>> of the Global Maritime Distress Safety System. The idea is to replace
>>> monitoring voice calling frequencies with APRS monitoring. APRS calling
>>> provides procedures for contacting stations that are operating APRS, but not
>>> monitoring voice. ITU Q codes are used in conjunction with APRS text
>>> messages to implement APRS calling.
>>>
>>> 1) The calling station sends a QSX signal to the station or group they wish
>>> to reach using an APRS text message. The QSX should include the frequency
>>> for voice contact. The calling station may wish to include offset and CTCSS
>>> or DCS information.
>>> 2) The called station or stations reply with an answering QSX via an APRS
>>> text message.
>>> 3) The stations shift communications to the arranged voice channel.
>>>
>>> That's the whole thing. I'd be grateful for any feedback.
>>>
>>> Best,
>>>
>>> --Bruce (KJ6VVJ)
>>>
>>>
>>> Robert "Bruce" Carleton
>>> Emergency Coordinator
>>> NALCO ARES/RACES
>>>
>>>
>>> _______________________________________________
>>> aprssig mailing list
>>> aprssig at tapr.org
>>> https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig
>>>
>>
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