[amsat-bb] AO-85 and the solar flare

Scott scott23192 at gmail.com
Thu Sep 7 05:26:31 UTC 2017

Hey there, Greg.

Easily the most handy thing I've put on my Ubuntu linux system is the Pulse
Audio Volume Control utility.  It provides a GUI to easily control what
audio device each app plays OUT to, as well as what audio device some other
app records FROM.  So, it's very straightforward to route the audio to suit
any need you might have when you want to do something like send your SDR
audio to an SSTV decoder or in this case, the FoxTelem app.

(Tip: you'll normally want to record from the "monitor" of your audio
device... you'll see it on the drop-down)

(Tip #2:  you won't see an app in the utility until it's actually playing
or recording)

To install:  sudo apt-get install pavucontrol

... and to run it:   pavucontrol

Of course, I use it so much that once it's running, I right-click the icon
to "Lock to Launcher" so that I can run it the next time with just a click.

Hope that helps!

-Scott,  K4KDR


On Thu, Sep 7, 2017 at 1:11 AM, Greg D <ko6th.greg at gmail.com> wrote:

> Hi Drew,
> I really need to get FoxTelem to run properly on my system...   My
> preference would be to directly feed the SDR output into the telemetry
> program input, but I can't figure out how to connect the dots.
> Recording a pass and then post-processing it is a bit of a pain (hence
> my opening statement).
> The system is running Linux, and I have a generic RTL-SDR dongle.  GQRX
> software talks to it perfectly.  I can even control it from software
> such as gPredict for Doppler tracking, so I know all that stuff is
> working.  But how to feed the audio into FoxTelem?  I was hoping the SDR
> would be one of the "audio sources" to select (IP Port), but it doesn't
> show up there.  I'm running FoxTelem 1.4.
> Is this possible?  The user guide seems to think so...
> Greg  KO6TH
> Andrew Glasbrenner wrote:
> > With today's big X9.3 solar flare, AMSAT would like to collect as much
> > telemetry as possible from AO-85 over the next 48 hours or so. If you
> can,
> > please run FoxTelem
> > (https://www.amsat.org/foxtelem-software-for-windows-mac-linux/) and
> feed
> > the program unfiltered audio such as from a 9600 baud jack or an SDR
> > receiver. This will allow us to identify any unusual effects onboard the
> > satellite.
> >
> >
> >
> > Thanks and 73,
> >
> > Drew Glasbrenner, KO4MA
> >
> > AMSAT VP Operations
> >

More information about the AMSAT-BB mailing list