[aprssig] APRS W,W and W,W,W example
wa7nwp at jnos.org
Fri Feb 11 12:07:09 CST 2005
> I understand about the RELAY, but WIDE,WIDE and WIDE2-2 seem to me to have the
> same number of repeats for a given configuration of digis. A packet only gets
> transmitted twice, since a digi won't hear as it transmits, it seems to me that
> the same digis transmit regardless of WIDE vs WIDEn-n.
> Can you explain why there would be "3 to 5 times" as many dupes?
I'll take a go at it.
Kantronics TNC's do dupe checking on WIDE2-2 but not generally on the
WIDE,WIDE. Thus with a WIDE,WIDE path you can get ping-ponging between
digi's you won't get with a WIDE2-2. The "3 to 5" number is probably a
worst case which is seldom seen. Normally it might be a couple extra packets.
It all depends on how many WIDE digis are in a area that hear each other.
It's not a problem with Digi_ned or, I believe, UI-digi.
More information about the aprssig