[aprssig] ISS internet feed

Andrew Rich vk4tec at tech-software.net
Sun Mar 20 03:31:35 EDT 2011

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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