[aprssig] information of voice repeaters on APRS

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Sat Mar 30 09:43:02 CDT 2013


Please read http://aprsisce.wikidot.com/doc:qru for a concept of how 
this can be done with APRS messaging coupled with requested object delivery.

If you send "RP2M" as the body of an APRS message to "QRU", you'll get a 
response in some form based on the detected capabilities of your APRS 
client or radio and the delivery path between the server and you.

Local RF will trigger a standard object transmission.  Capable clients 
(APRSISCE/32, for instance) will receive an Item-In-Message 
(http://www.aprs.org/aprs12/item-in-msg.txt). Otherwise, a humanly 
readable text description will be sent describing the item(s) of interested.

If there is no QRU server near you, or if it doesn't have anything 
within its configured range limits, you will get no response.

Oh, and adding an "nnnnn" after the "RP2M" (or whatever classification 
you're asking about) will expand the range and might get you an answer 
for testing.  Say maybe "RP2M 20000"?  But I'd suggest doing this last 
test on APRS-IS, not RF!

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32

PS.  I believe Charles Blackburn was working on another implementation 
of a QRU server as well.

On 3/30/2013 10:29 AM, Andrew P. wrote:
> Hmmm....
>
> That's an interesting idea. APRS already has the generic RF-only queries ?IGATE and ?WX to find local I-gates and weather stations (respectively). Maybe we could define a new RF-only generic query ?RPTR which would cause all stations sending repeater objects to send them immediately (and thereby let the mobile user know about local repeaters without waiting for the periodic report).
>
> Or would this clog the channel from abuse of this query? It doesn't seem that ?IGATE and ?WX are being too badly abused, but those aren't station types that a user needs to explicitly know about "right now!".
>
> Just an idea.
>
> Andrew Pavlin, KA2DDO
> ------Original Message------
> From: Kristoff Bonne
> To: aprssig at tapr.org
> Sent: Mar 30, 2013 9:22 AM
> Subject: [aprssig] information of voice repeaters on APRS
>
>
> Hi All,
>
>
>
> Can somebody help me understand what is exactly the possibilities of
> adding information about voice (FM or DV) repeaters on APRS.
>
> This question is the result of a small discussion I had with a couple of
> fellow hams on finding a way to feed information about what repeaters
> into a handheld radio.
>
> What is done now (manual lists or "chirp" images) is not the most handy
> thing to use, requires additional devices and is not really standardised
> that can be used on all handhelds.
>
> One idea was to use APRS for that:
> - Some information about Repeaters is already found on APRS (be it
> limited). This information can be cached in the local APRS node or
> stored in the APRS-IS archive
>
> - A handheld could send out a query "please provide list of repeaters"
> on the local APRS frequency; which would be received by the local APRS node
>
> - these can then return that information: frequencies/shift/tone, mode
> (FM, D-STAR, MotoTbro, ...), echolink/IRLP/... info
>
>
>
> D-STAR repeaters already post their existance on APRS, as does some
> echolink software (like "thelinkbox").
>
> However, if I am correct:
> - the information send to the APRS node is not really standardised (it
> seams to be an "object", but information like frequencies, supported
> modes, ...) are in freeform text.
>
> - There does not seams to be a way to query the APRS network "give me a
> list of repeaters"
>
>
> There also seams to be a type-of-object "voice repeater", but I cannot
> find the exact information in the specification on what is exactly in there?
> Does it also contain information like modes; is it extendable towards
> digital voice (including non-D-STAR systems)
>
>
>
> Any help appriciated.
>
> 73
> kristoff - ON1ARF
>
> _______________________________________________
> aprssig mailing list
> aprssig at tapr.org
> http://www.tapr.org/mailman/listinfo/aprssig
>
>
> Sent from my Verizon Wireless BlackBerry
> _______________________________________________
> aprssig mailing list
> aprssig at tapr.org
> http://www.tapr.org/mailman/listinfo/aprssig
>



More information about the aprssig mailing list