[OZAPRS] Findu can find me..

[Noel Rowe]

Bob, whose wisdom is respected, said thus:

>I believe there is a tendancy "down under" to
>DIGIPEAT ISS and PCsat packets over onto
>144.39 FIRST so that then they can get into
>the IGate system.

Yes, in ZL we do - not onto 144.39, but onto other local frequencies which
amounts to the same thing.

>As I have said over and over,
>that doesnt work for the APRS-IS!

It can be made to work.  Check ZL3GR-3 at ARISS!

>Once it hits 144.39, it enters an IGate as having
> been digipeated TERRESTRIALLY instead of
>via RS0ISS* thus FINDU nor
> WWW.ARISS.NET
>does not see the RS0ISS*.

>So you need dedicated ISS SATGATES.  Do not
> rely on the digiepating-to-39 crutch that currently
>seems to be in heavy use down there...

>Bob

Now while all that Bob has said is generally accepted as being true, and
simplistically it is, there is a simple way arround it.  In effect, I am
saying that whilst Bob is right he is also wrong!

I run an APRS node for our local area, and do not have an i-gate
connection.
All traffic is fed on RF, via a duplex data repeater, between me and the
i-gate (ZL1AMW) 83 Km away in Hamilton.  This is on the other side of a
range of hills, and the repeater is on a ridge.   As well as terrestial
traffic I also monitor the ISS (or PCSat if its got light and power) and
feed any traffic out via my node.  From time to time I send my own beacons
off into space, and if it comes back, my node deals with it.

All that is needed for the ARISS site to see satellite traffic that has
also
had digipeats terrestially before getting into the internet is for a
comment
to be appended to the beacon to say "via RS0ISS*".

Here is a copy and paste, to show how it was done.  My node acted on the
SGATE, and the WIDE is so that other nodes can digi it for their local
stations to see.  I checked the ARISS site and it is there (UTC 2135)>

10:35:09R ZL3GR-3>APU36Y,RS0ISS-3*,SGATE,WIDE Port=3 <UI Len=51>:
!3740.98S/17612.86E-via RS0ISS* zl3gr at nzart.org.nz


I do not take the credit for working out this trick - Sil, ZL2CIA was the
brain behind it.  I was feeding his ISS beacons in, and they were going
nowhere because of the reasons Bob put forward.  Once a way arround it was
found, it has been working OK.

Noel, ZL3GR.



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