[amsat-bb] Re: Arissat bpsk1000 software?

25 Jan 2011

      Hello Jeff and BB,
The BPSK-1000 downlink is transmitted in SSB mode. I sounds like a 
"shusssch", higher pitch than the 400 bps growl. It is difficult to tune by 
ear. So the CW signal was moved close to it so the CW signal could used as a 
tuning signal.
Plug  the audio from an SSB receiver into the computer soundcard MIC/LineIn 
socket. The PC//Mac software display contains a dotted line that you use to 
tune your receiver until the CW signal bump lines up with the dotted line 
and the software will decode the BPSK-1000 signal as well as the CW.
The BPSK data is composed of 5 packets.
TLM
Experiment packet 1 of 5
TLM
Experiment packet 2 of 5
TLM
Experiment packet 3 of 5
TLM
Experiment packet 4 of 5
TLM
Experiment packet 5 of 5
TLM
Experiment packet 1 of 5
...
We will have more about this as the developers get the first version ready 
for people to look at, we hope soon.
We will also have an Internet data stream running for people to practice 
using the software.
73,
Gould, WA4SXM
----- Original Message ----- 
From: "Jeff Yanko" wb3jfs@cox.net
To: "Gould Smith" gouldsmi@bellsouth.net
Sent: Tuesday, January 25, 2011 2:17 PM
Subject: Re: [amsat-bb] Re: Arissat bpsk1000 software?
...
Hi Gould,
Question.  I've read the ARISSAT articles in both QST and AMSAT Journal 
and understand the BPSK 1000 beacon.  However, what mode will the beacon 
be transmitting in?  SSB, FM?  Looking forward to your reply.
73,
Jeff  WB3JFS
----- Original Message ----- 
From: "Gould Smith" gouldsmi@bellsouth.net
To: "Vince adams" vinoul@hotmail.com; amsat-bb@amsat.org
Sent: Tuesday, January 25, 2011 8:02 AM
Subject: [amsat-bb] Re: Arissat bpsk1000 software?
...
Hello Vince and BB,
Thanks for your interest.
We have working software to demodulate and decode the BPSK-1000 signal 
for
both the PC and Mac.  We got a live stream of realtime data running over 
the
Internet last weekend.
The developers are refining the software and we expect to make this
available soon.
73,
Gould, WA4SXM
----- Original Message ----- 
From: "Vince adams" vinoul@hotmail.com
To: amsat-bb@amsat.org; "Vince adams" vinoul@hotmail.com
Sent: Tuesday, January 25, 2011 9:53 AM
Subject: [amsat-bb] Arissat bpsk1000 software?
...
I have been reading about the upcoming Arissat-1 mission and have found
lots of good information.  However, I have been unable to find any links
to the bpsk-1000 software that will be used for telemetry.  All of the
articles I have read say that the software will be available before the
suit is deployed.  But if I read correctly, this is coming up fairly 
soon.
Any info would be appreciated.
73  Vince  N9VN

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