[aprssig] APRS messages being seen by "base" station

[Stephen H. Smith]

Bernard Tyers wrote:
>
> APRS sees every station with "-XX" as a sub-station, even if the 
> message originated from a sub-station?
>
> Apologies if I am not getting the message (hi hi) here!
>
> thanks in advance,
> bernard
> EI8FDB
>
>

There are no "sub-stations". 

ALL stations are co-equal in the AX25 packet protocol used by APRS.    A 
call with just the callsign alone ( i.e.  WA8LMF ) is actually  the call 
with an SSID of zero (i.e. WA8LMF-0)  and is treated the same as any 
other SSID.   (The SSID of -0 is implicit and handled as such,  even if 
it is not explicitly specified.)



--

Stephen H. Smith    wa8lmf (at) aol.com
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