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[aprssig] ISS internet feed

Julian, G4ILO julian.g4ilo at gmail.com
Sun Mar 20 10:27:16 UTC 2011


Anything is possible if someone wanted to set up a separate network
for it. However, while I understand the reasoning behind the request
(which is often also requested by terrestrial operators wanting to see
how far their packets travelled) what you are asking for has no value
in the context of the primary purpose of APRS so there is no reason
for the existing network to support it.

If you were considering delaying packets to avoid the de-duplication
mechanism I'm sure a lot of people would have something to say about
that. :)

Julian, G4ILO
G4ILO's Shack: www.g4ilo.com








On 20 March 2011 07:31, Andrew Rich <vk4tec at tech-software.net> wrote:
> Is it possible to set up and APRS -IS feeder that does not ignore dupes ?
>
> I will try and explain what I mean.
>
> You have a station that is in coverege of many other stations , such as ISS
> from space.
>
> The ISS is heard by many stations and the first one to relay the message
> wins ?
>
> The other stations packets get "lost" in the dupe checking function of the
> APRS-IS protocol.
>
> It would be nice to have a space APRS-IS feed for ISS that allows the
> subscribed stations to hear what other stations contributed , apart from the
> "winning" packet
>
> What is the latency rejection of an APRS-IS station ?
>
> How "late" can a packet arrive before it is considered not a dupe and
> classed as a "new" packet ?
>
> - Andrew  VK4TEC -
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