[aprssig] Q: Vicious digipeater
hessu at hes.iki.fi
Sat Oct 24 02:37:46 CDT 2009
On Sat, 24 Oct 2009, Matti Aarnio wrote:
> 2) If no other transmission of the packet is heard during the probation delay,
> the packet is viable for retransmit per normal digipeating rules.
> Observed behaviour is such that in urban environment it will cut down the packet
> transmissions by such viscous digipeater by about 90% (80 to 95).
> Btw: I did not invent this, but apparently I was first to implement and measure it.
Actually, it is implemented in the 'digipeater' profile of the hamdr
tracker (relay_viscosity config option). It's not implemented in the
'tracker' profile which actually contains the smarter WIDEn-N digipeater,
and which is really used on APRS digipeaters here.
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