Order Tray | Contact Us | Home | SIG Lists

[aprssig] conveying map view

Bob Bruninga bruninga at usna.edu
Wed Sep 22 13:50:37 UTC 2004


This is a good idea.  We just need to choose an APRS
symbol that means to do it.  I suggest the EYEBALL?

On Tue, 21 Sep 2004, Bill Herrmann wrote:

> At 05:10 PM 9/21/2004 -0700, Curt Mills wrote:
> >I'm starting to like the idea of posting an object of a certain
> >format, rather than a message.  If it had a standard format, clients
>
> Curt's onto something here. APRS clients already support it and...
>
> (from the APRS spec - in the object/item section)
> The position may be in lat/long or compressed lat/long format, and the
> report may also contain Extended Data.
>
> Guess what we already have in the extended data definitions... Range!
>
> (from the APRS spec)
> The 7-byte RNGrrrr Data Extension allows users to transmit a precalculated
> omni-directional radio range, where rrrr is the range in miles (with
> leading zeros). For example, RNG0050 indicates a radio range of 50 miles.
>
> Sounds to me like it is an already defined frame that can contain both
> center and range information. Not only that, but objects, by definition,
> are supposed to include the senders callsign. (I should note that either
> objects or items would appear to work.)
>
> The only compromise involved is to change the range meeting from RF range
> to range of map view. I think most of us would agree that that is a
> reasonable change.
>
> Bill
>
>
>
>
> _______________________________________________
> aprssig mailing list
> aprssig at lists.tapr.org
> https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
>

de WB4APR at amsat.org, Bob

PCsat WEB  page     http://www.ew.usna.edu/~bruninga/pcsat.html
ISS-APRS FAQ:       http://www.ew.usna.edu/~bruninga/iss-faq.html
CUBESAT Designs     http://www.ew.usna.edu/~bruninga/cubesat.html
APRS LIVE pages     http://www.ew.usna.edu/~bruninga/aprs.html
APRS SATELLITES     http://www.ew.usna.edu/~bruninga/astars.html
MIM/Mic-E/Mic-Lite  http://ssdl.stanford.edu/mims/





More information about the aprssig mailing list