[amsat-bb] Re: ANDE - ISS dual hop?

[Joe Veldhuis]

Since ISS is unlikely to hear ANDE, why not be a bit more explicit and reduce the likelihood of the sats colliding with eachother (transmissions, not the sats themselves, hi)? I'd use a path of APRS via RS0ISS-4,ANDE-1.

-Joe, N8FQ

On Tue, 4 Dec 2007 20:48:31 -0500
"Robert Bruninga" <bruninga at usna.edu> wrote:

> ANDE is catching up to ISS.  Now at about 0100z on the 5th,
> ANDE's footprint is just touching ISS's.  And ISS is on packet
> on 145.825 just like ANDE.  
> 
> Over the next several hours, ANDE will get closer to ISS and
> then  move out in front.
> 
> I suspect that ISS has no chance at hearing the weak ande, and
> ANDE might not hear ISS, but the best chance will be monitoring
> ANDE's downlink for any double hop packets via ISS.
> 
> Since both spacecraft respond VIA ARISS, then a double hop
> packet might try the path UNPROTO APRS VIA ARISS,ARISS.  A
> slightly more efficient path (shorter packet) might be APRS VIA
> WIDE2-2.
> 
> See the ANDE-OPS web page:
> http://www.ew.usna.edu/~bruninga/ande-ops.html
> 
> Good luck!
> Bob, WB4APR