[aprssig] "station which heard ... directly on the radio"

Kristoff Bonne kristoff.bonne at skypro.be
Mon May 20 17:15:36 CDT 2013


Hi Lynn,


Thanks for your reply.

(see inline comments).

On 20-05-13 20:45, Lynn W. Deffenbaugh (Mr) wrote:
> On 5/19/2013 2:27 PM, Kristoff Bonne wrote:
>> I did find this pretty odd so I looked in the "raw messages" for this
>> station:
>> 2013-05-19 12:08:32 CEST:
>> ON4NS-9>UQPTY6,ON7EQ,ON0OST,qAR,ON1ARF-2:`y_.oR9>/`"4F}_"
>>
>> This does not look to be a "heard directly". It has been digipeated
>> twice before reaching my node.
>
> That packet has no used (*) path components, so it would appear to have
> been heard direct by ON1ARF-2.  Based solely on that packet, the ON4NS-9
> station appears to have requested explicit support of the ON7EQ and
> ON0OST digipeaters in that order, neither of which indicate having been
> used, so ON1ARF-2 must have copied the original packet directly from
> ON4NS-9.

Well, althou these application where not written by me, I did take the 
time to have a look at the source-code  of multimonNG. It seams there is 
no code to add a '*' of the C-bit is set in the SSID part of an address.

However, it's not realy clear how exactly this should be corrected.

I noticed that when you just set the asterisk everywhere where that bit 
is set, you get paths like this:
... to U0QRQ5-0 via ON0WTO-2*,WIDE1-0*,ON0OST-0*
(just copied this off the air 5 minutes ago).

Is this correct? When I look in the archive of "raw" messages on 
aprs.fi, I do not see such an paths overthere! The asterisk in only on 
the last message or the one before that?



On what addresses in the path does there need to be a asterisk?
All addresses with the C-bit set? Only the last? Only the last, or the 
one before that if the last address in the path is a "WIDE"?
But what if that WIDE-address at the end of the path does not have a '*' 
itself?


73
kristoff - ON1ARF



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