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[aprssig] New WIDEn-N Paradigm (MAJOR MOD)

Greg Noneman greg at clubnet.net
Sun Feb 6 20:46:32 UTC 2005

On Feb 6, 2005, at 11:51 AM, Ron Stordahl wrote:
> I am not at all sure this will work with the UIDIGI firmware for 
> TNC2's.  Of course I should have checked this before speaking up, but 
> perhaps someone has checked and can confirm or deny?  If as I suspect 
> it doesn't, then really you are only talking about KPC3's.  There are 
> a lot of UIDIGI's out there, particularly in NW Minnesota where 90% 
> are that type.
> The best bet would be for the UIDIGI author to simply implement a 
> limit on N, can't be that hard.
> No one better than you, as the high muckymuck of APRS, to try to twist 
> the authors arm.  He doesn't pay any attention to me.
> Ron, N5IN


The filtering function using the  UIDIGI parameter does work with 
Marco's UIDIGI ROM firmware.  We have just implemented a change in the 
Los Angeles area which employs two KPC-3 TNCs and one TNC-2 with 
UIDIGI.  Before the filter approach was considered, the functionality 
was tested on the UIDIGI firmware.  As with the KPC-3, the UIDIGI 
parameter is acted upon prior to UIFLOOD or UITRACE.  UIDIGI ROM 
actually has an advantage over the KPC-3 in that it allows up to 8 
entries in the UIDIGI parameter (vs. 4 in the KPC-3) so more WIDEn-N 
combinations can be filtered-out.

You are correct however.  The best solution would be a firmware mod to 
allow a selectable limit on the WIDEn-N flooding.  Maybe Marco can be 


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