[aprssig] Digipeater Question - Unused WIDE2

Tim Cunningham tim_cunningham at charter.net
Tue Apr 6 11:19:01 EDT 2010

> On Mon, 5 Apr 2010, Lynn W. Deffenbaugh (Mr) wrote:
>> If this packet is received over RF, and my client is configured as a 
>> WIDE2 digi, should it digipeat the packet or not?
>> It seems that the AA4QI-1 digi is doing this consistently.
> Should not digi. I think UIDIGI does this - decrementing from WIDE2-1 to 
> WIDE2 and not marking it as used. Also, if a WIDE1-1,WIDE2-1 packet is 
> first converted to DIGI1*,WIDE2-1 by a callsign-substituting fill-in digi, 
> a second-hop UIDIGI will digipeat that with a resulting path of 

UIDIGI can exhibit this behavior if it is not configured properly. There is 
nothing that suggests AA4QI-1 is a UIDIGI as the destination call is set to 
APRS in the beacon.

With UITraceCall=WIDE and UITraceOptions=2 on UIDIGI, this will not happen.

If UIFloodCall=WIDE and UIFloodOptions=2 under UIDIGI, the example Lynn 
provided would be duplicated by UIDIGI. The previous callsign in the path 
would be eliminated, the UIDIGI call would be inserted with the "has been" 
digipeated flag", and the WIDE2 would be placed at the end of the path with 
no "has been" digipeated flag.

If this is a UIDIGI, then it is certainly misconfigured. Details on proper 
UIDIGI configuration can be found at:


Tim - N8DEU

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