[Xastir] Help: Coordinates format

[ian at bultitude.org]

Sorry I have not replied sooner. I am still playing with it but keep finding more problems to work out.

Quoting Tapio Sokura <oh2kku at iki.fi>:

> Ian A Bultitude wrote:
> > I am attempting to set my AX25 beacon so that it is in the correct format for Xastir and other such APRS systems.
> >
> > 1/	What format is the Lon/Lat in? ddmm.ss ie degrees minutes seconds or is it all decimal?
>
> Latitude is "ddmm.mmX" and longitude is "dddmm.mmY". That is always
> positive degrees, minutes and decimal minutes. X is north/south
> indicator (N or S) and Y is east/west indicator (E or W).
>

Ok that was what I exspected Thanks.

> > 2/	Why the extra 0 in the Lat?
>
> There is no extra 0 in the latitude, unless you happen to live between 0
> and 10 degrees north/south of the equator. The longitude degree value is
> always three digits to accomodate places between 100 and 180 degrees
> east or west. Two digits is enough for latitude as it is always between
> 0 and 90 degrees.
>

AH! Yes I should have thought of that.

> > 3/	How using the AX25 beacon command can I invoke the WIDE option so that it will digi via the next system in line?
>
> Something like
>
> beacon -c callsign -d 'APRS v WIDE WIDE' -t time port 'packet here'

I am still playing with this. The system I was using to test (located in the US) does not seem to work id I change the -d from ID

>
> should work. Put the callsign you want the packets to be sent from to
> "callsign", beacon interval in minutes to "time", AX.25 port to "port"
> and the packet itself to "packet here". The above sample sends the
> packet with a digipeater path of WIDE,WIDE, i.e. two consecutive
> digipeats. You could also use "APRS v RELAY WIDE", or whatever is
> recommended path over there.
>
> For a standalone beacon (without APRS software) you should use a packet
> format starting with an exclamation mark.

This does not seem possible I get an error (forget what it is now) if I try to put an escape / then it sents /!.

>
> For example:
>
> !1234.56N/12345.67E-comment here
>
> In addition to the location and comment, you can choose the symbol to be
> displayed in APRS software by changing the characters immediately
> following the N/S and E/W indicators. In this example those characters
> are '/' and '-', which is a house symbol. The station in the example is
> located at 12 degrees 34.56 minutes north and 123 degrees 45.67 minutes
> east. Comment text is optional and should be under 43 characters long.
>
>    Tapio
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>


Many thanks Ian


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