So if a packet is heard on the first hop, the second hop will be ignored as far as the FINDU.COM data base is concerned.
So you have to either parse the entire live APRS data stream for these packets, or look at your own TNC logs to see them.
OOPS, I was wrong on that sentence too. Since all the Igates feed APRSservers, and the servers also eliminate all dupes, then the only way to see a dual hop-packet is for someone to capture it in their local RF log or for the equally improbable occurrence that the first hop was not heard by ANY Igate anywhere. (the product of two unlikely events). So do not expect to find dual hops captured on any web pages except for local logs.
That's another reason I wanted a dedicated server just for SATgates...
Bob, WB4APR
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Robert
Bruninga
Sent: Wednesday, December 05, 2007 12:06 PM To: 'Ransom, Kenneth G. (JSC-OC)[BAR]'; 'Joe Veldhuis'; amsat-bb@amsat.org Subject: [amsat-bb] Re: ANDE - ISS dual hop?
Also the global APRS network that collects these packets and feeds the two pages: http://pcsat.aprs.org and http://www.ariss.net is an inherrently designed dupe
eliminator.
So if the packet is heard on the first hop, the second hop
will
be ignored as far as the FINDU.COM data base is concerned.
So you have to either parse the entire live APRS data stream
for
these packets, or look at your own TNC logs to see them.
Bob, WB4APR
-----Original Message----- From: Ransom, Kenneth G. (JSC-OC)[BAR] [mailto:kenneth.g.ransom@nasa.gov] Sent: Wednesday, December 05, 2007 11:11 AM To: bruninga@usna.edu; Joe Veldhuis; amsat-bb@amsat.org Subject: RE: [amsat-bb] Re: ANDE - ISS dual hop?
Putting ISS first in the hop path seems to be the best
strategy since
ISS is above ANDE and the ISS antenna is Earth facing. Since
ISS has a
fairly high output, it is more likely to be heard by ANDE than the other way around. The draw back is that since ANDE is much harder to hear, one on the ground may not know if they had a successful hop through ANDE if no one hears the relayed packet.
Kenneth - N5VHO
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Robert Bruninga Sent: Tuesday, December 04, 2007 9:25 PM To: 'Joe Veldhuis'; amsat-bb@amsat.org Subject: [amsat-bb] Re: ANDE - ISS dual hop?
Since ISS is unlikely to hear ANDE, why not be a bit more explicit and reduce the likelihood of the sat's packets colliding with each other... I'd use a path of: APRS via RS0ISS-4,ANDE-1.
Thanks Joe. Yes, that is the best idea...
But come to think of it, ANDE does not have the best ears either... Oh well. Glad to hear ISS back up. Maybe if
someone
can catch PCSAT-1 on a mid day sunny pass and ISS, they
might
get a double hop...
Bob
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