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[aprssig] APRS Message Idea

Andrew Rich vk4tec at tech-software.net
Thu Mar 3 04:54:45 UTC 2005


i propsed this months ago and discovered uiview store and forward 


> With APRS, when you send a message to another station, the software 
(or
> hardware in the case of Kenwood radios) tries a number of times to 
deliver
> the message, then gives up if the receiving station does not ACK the
> message.  With the connectivity available through the APRS-IS, we 
can now
> send text messages via APRS anywhere in the world.  The problem is, 
if you
> are messaging a far away station, you don't know if they are 
actually active
> on APRS during the particular moment that you send the message.
> 
> This concept is very similar to cell phone text messages, however, 
the
> cellular "system" will store a message for days (7 or so?) until the
> recipient device is available on the "network" so it can make the 
delivery.
> In most cases, this is just a matter of the person being in a 
temporary "RF
> hole" such as inside a building or on a rural road.  With cellular, 
the
> message gets delivered as soon as the person gets back in range, 
with APRS,
> sorry, you missed the guy by a few minutes...
> 
> I know this was not the original design or intent of APRS, but what 
do you
> all think of enabling this type of store and forward capability?  
This
> system could be separate from the standard "tactical" type of 
messaging
> currently used.  I envision it would be set up similar to the EMAIL 
gateway.
> Perhaps there would be a gateway with an alias of "MSG".  To use 
this store
> and forward system, send a message to "MSG" with the recipient 
callsign-ssid
> as the first piece of the message and the actual message as the 
remainder.
> The "MSG" gateway will pick it up from APRS-IS and handle storage and
> delivery.  I'm not going to get into further "how it works" details 
at this
> point.  I just wanted to throw the general idea out there to see if 
there is
> any interest in this.
> 
> What do you all think?  Good idea?  Stupid idea?  Already available 
somehow?
> 
> 73!
> 
> A.J. Farmer, AJ3U
> http://www.aj3u.com
> 
> 
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> 
> 

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