[aprssig] ARISS Satgates

Chuck Kimball n0nhj at yahoo.com
Wed Jul 21 11:48:59 EDT 2004

Quick question as someone else has probably already researched it.

It there a good software package that will handle multiple TNCs on 
multiple serial ports?

I'm getting ready to set up a I-Gate when I get home, and if I could do 
it on the same machine
to handle a TNC on 144.390, another (maybe 9612) with a 1200 baud port 
on 145.800, and
the other TNC port on a 435 for echo or one of the other sats...   Would 
seem to be much easier
than  running several computers. 

Chuck   n0nhj

Robert Bruninga wrote:

>More ARISS Satgates needed?
>Today I did a quick look at the packets arriving at 
>http://www.ariss.net to see where the IGates were:
>00:03:21:35 : qAo,WA6LIE-4  Southern Calif
>00:06:29:46 : qAo,N0AN        Boone Iowa
>00:06:31:57 : qAR,KE4AZZ    Greenwood Indiana
>00:07:23:15 : qAo,VA3BOO   Kinsington, ONT
>00:08:01:18 : qAO,KC9DOA   Fondu Lac WI
>00:08:47:24 :        VK5AH-1      Adelaide, AUS
>00:09:34:58 : qAo,VE2TSO     Quebec
>00:11:21:27 : qAo,KB0LCR-1  Watertown SD
>00:12:36:58 : qAR,F4CEP      France
>00:12:40:22 : qAo,ON7EQ      Belgium
>00:12:51:22 : qAo,KC9ECI      Onalaska, WI
>Notably absent were very large sections of the USA
>such as the East Coast, Souitheast, Souithwest, 
>South and Pacific Northwest.
>Global areas missing:  Japan, South America, Souith 
>Africa, Hawaii, Alaska, Israel, UK, Spain, Central 
>America, etc...
>Two things of note.  
>1) Setting up a SATGATE to link ARISS into the internet 
>is simply a whip antenna, an FM rig and TNC on 145.800 and
>just about any version of APRS.
>2) There is no such thing as overkill.   The APRS internet
>system filters out all dupes so it is better to have too many
>than not enough IGates.  And having at least TWO igates
>in every area doubles the probability that EVERY packet
>that makes it through the AIRSS digipeater will be captured
>by at least one IGate.
>So if you have a spare TNC and FM radio and permanent
>internet access, please  consider setting up an IGate.
>* A whip antenna does NOT need to be high or to see
>    the horizon.  Someone else's IGate will hopefully be
>    closer.   A 19" whip over a ground plane is simple and 
>    effective.  No moving parts.  Low so it avoids lightening
>    vulnerability.  etc..
>de Wb4APR, Bob
>aprssig mailing list
>aprssig at lists.tapr.org

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