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[aprssig] AO-Echo satellite

Patrick Green pagreen at gmail.com
Sun Jun 5 01:25:22 UTC 2005


I have asked for digipeating exactly twice now.  I have a D7A and can
and would like to try this out if they *can* turn it on.  If you have
a D7A, D700 or any other device that can do 9600 email the folks that
setup the schedule at ao51-modes at amsat.org.  From what I hear, there
aren't that many requests on it.

73 de Pat --- KA9SCF.
Amsat #35741

On 6/4/05, Robert Bruninga <bruninga at usna.edu> wrote:
> This is a myth.
> The uplink to ECHO is 9600 baud AX.25 and the
> downlink is usually 9600 baud AX.25 packet.  Further
> the uplink uses UI packets for a station to request
> access.  The PACSAT protocol has always had the
> capapbility to simply digipeat a packet by the simple
> setting of the "d:0" bit to "d:1".  Just monitor the downlink
> and whenever you see the STATUS packet, you will see
> the "d:0" set to zero meaning that the digipeatr is turned
> off.
> 
> But they dont because it is just not a priority to
> them.  They said there was a problem once in
> the interrupts, but again, such a problem should
> be trivial to fix, since the PACSAT protocol already
> uses UI packets on the uplink, so listening for APRS
> UI packets is no different.
> 
> Injecting a digipeated packet in the downlink is trivial
> and seamless.  Now, what I am saying here is the
> status from about a year ago or more, the last time
> I asked for them to enable digipeating.  But it was
> clear that there was no interest and  no incentive to
> solve whatever minor problem was holding them up.
> Hence the "statements" that it doesnt support
> APRS.  That is true, but only because the digipeat
> funciton has not been turned on.
> 
> Again, I am not complaining,  As long as that is the
> way they chose to operate, then that is what we are
> stuck with.  They do all the work, so I have no intention
> of complaining.  Thank goodness there are good
> honest people working ECHO and doing a good
> job.  Again, I am not complaining.  Just noting the
> facts (as I understand them).
> 
> Bob, Wb4APR
> 
> 
> >>> kf4otn at ericsatcom.net 06/04/05 9:05 AM >>>
> >From what I understand, AO-51 (Echo) does not have any APRS-capable
> gear onboard so it isn't available to be a digipeater.
> 
> 73s,
> Eric KF4OTN
> kf4otn at amsat.org
> http://www.ericsatcom.net
> 
> Project OSCAR Member
> AMSAT-NA Member: 35360
> AMSAT Eastern North Carolina Area Coordinator
> 
> > -----Original Message-----
> > From: aprssig-bounces at lists.tapr.org
> > [mailto:aprssig-bounces at lists.tapr.org] On Behalf Of Rochte, Robert
> > Sent: Friday, June 03, 2005 23:06
> > To: TAPR APRS Special Interest Group (E-mail)
> > Subject: [aprssig] AO-Echo satellite
> >
> >
> > Does Echo have any role in APRS, either now or planned for the
> future?
> >
> > _______________________________________________
> > aprssig mailing list
> > aprssig at lists.tapr.org
> > https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
> >
> >
> 
> 
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