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[aprssig] DIGI Overlay Characters

Stephen - K1LNX k1lnx at k1lnx.net
Mon Sep 10 14:25:56 UTC 2007

> "1" Is a modern WIDE1-1 only fill-in digipeater

I use "F" for my fill-in digi, is "1" more appropriate or is either


On 9/10/07, Robert Bruninga <bruninga at usna.edu> wrote:
> > I am not on top of the meanings of the various symbols.
> > Perhaps someone else can help with that.
> "S" is a fully modern New-N Paradigm digi
> - Supports WIDEn-N
> - Traps larger values of N
> - Supports SSn-N paths within an SS or SSS.. Region
> - Beacon format shows capabilities: "W2,SSn-N..."
> - Supports Local Info FREQ object in its Btext
> "N" is an old N digi -often- with these problems:
> - Beacon rate is not proportional: 10min dir, 30min 2 hops
> - does not identify digi type with APNxxx destination address
> - Does not trap large values of N
> - Does not indcate capabilities in its beacon
> - Does not use new standard FREQ object format
> "1" Is a modern WIDE1-1 only fill-in digipeater
> "1" Can also indicate an enforced one-hop digi such as in the LA
> basin.  It will trap all WIDEn-N packets and only produce one
> hop.
> "P" is a PACCOM digi that supports New-N.  It will only do
> W11,W22,W21,W33.
> The following are obsolete:
> "W", "T", "R", "U".  Others?
> Notice that a UIDIGI ROM can fully support the New-N paradigm so
> it becomes a "S" but because it will have APNUxx in its
> destination field, we can still identify the type of digi..
> If I omitted any, then lemme know and I will re-release this
> email.  The point being, that New-N is SELF IDENTIFYING OF ITS
> CAPABILITIES TO ALL USERS.  That way we can know what works,
> what doesn't and what needs to be fixed.  And users in an area
> can see exactly what they will get.
> Bob, WB4APR
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Stephen Brown - ARS K1LNX
Johnson City, TN EM86uh
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