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[aprssig] Linking digipeaters

Tyler Griffiths n7uwx at comcast.net
Tue Mar 8 23:05:45 UTC 2011


This is the diode matrix we used to use in the NetRom day.

http://home.comcast.net/~noutares/files/4x1diode.gif

Would it be of any use now???

Tyler

On Mon, Mar 7, 2011 at 6:49 AM, Wes Johnston, AI4PX <wes at ai4px.com> wrote:

> Anyone remember the net/rom days in the early / mid 90's.... those nodes
> could be linked in a stack.  I think one manufacturer called it "coax lan".
> And there were the diode OR matrixces for hooking the nodes together.
>
> It sure would be nice if we had a multiport KISS controller that would take
> KISS frames from multiple TNCs, perform the digipeating functions and spit
> the modified KISS frames back out the same or different ports.
>
> I think digined would do this, but it runs on a DOS pc.  I'm thinking more
> along the lines of something running on a small processor such that the TT4
> and T2s are based on.  Most of these simple KISS devices don't use flow
> control, so the device would have ot be able to buffer a couple of packets
> from each port at a time.  It'd probably require a real hardware UART.
>
> Any ideas?
>
> Additionally, it would sure be nice if the digipeaters kept up with the
> number of seconds the CD light was ON during a 10 minute period (_not_
> number of sucessfull packet decodes), and published that number as network
> utilization telemetry along with their normal beacons.  Note the utilization
> needs to be scaled up by approx 3x since 36% is considered the point of
> saturation in Aloha type networks.
>
> Wes
> ---
> The world needs more geniuses with humility because there are so few of us
> left.
>
>
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>


-- 
Tyler Griffiths
N7UWX

See where I am:
http://map.findu.com/n7uwx-12
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