[aprssig] "station which heard" - PyMultimonAPRS igate seriously buggy!

Kristoff Bonne kristoff.bonne at skypro.be
Mon May 20 04:56:19 CDT 2013


Hallo Heikki,


Thank you for the reply and for troubleshooting this.


I have tried out PyMultimonAPRS because I was experimenting with the RTL 
dongle, SDR, gnuradio, etc.
It looked like a nice application to have.

I will forward this information to the "raspberry_pi_4-ham_radio" list 
on yahoo where the information on this project came from.


BTW. In this setup, it uses MultimonNG but I don't know the relationship 
between multimon and multimonNG.


73
kristoff - ON1ARF



On 20-05-13 10:14, Heikki Hannikainen wrote:
> Kristoff, I just noticed that the PyMultimonAPRS igate software is
> still seriously broken in another respect too: it is mangling packet
> contents too!
>
> For example, see this: http://aprs.fi/?c=raw&call=DK0CO
>
> Packets which went through DL1MX igate running PyMultimonAPRS are (1)
> missing the '*' character denoting used digipeaters, and (2) the
> ISO-8859-1 encoded 'ö' character, 0xF6 hex, is replaced by a '.'
> character. "APRS-Digi Osterode-Förste-Clubstation" becomes "APRS-Digi
> Osterode-F.rste-Clubstation" !  This will also seriously break Mic-E
> encoded position packets, which contain unprintable "binary" bytes.
> And it will also make the mangled packet *different* from the original
> packet, which will cause a *duplicate* copy to traverse parts of the
> network since it's different from the original.
>
> These are due to limitations in Multimon.
>
> I would strongly advice you and everyone else to not use
> PyMultimonAPRS at all until these bugs are fixed. Thanks!
>
> - Hessu
> _______________________________________________
> aprssig mailing list
> aprssig at tapr.org
> http://www.tapr.org/mailman/listinfo/aprssig
>




More information about the aprssig mailing list