[amsat-bb] FoxTelem 1.09 released

Thu Dec 3 14:40:41 UTC 2020

Frank,

I am not an expert on the internals of FoxTelem, but I have seen no other
answers, so I will chime in and ask whether you had FoxTelem installed on
this same system earlier and whether you are starting it up specifying a
data folder.  (You do this by specifying a folder either on the command
line if you start it that way, or in the shortcut properties).   If you
specify a data folder (directory), that has to be writable by you.

It says "run directory".  That would be the directory where you actually
placed the folder that you downlinked, and which includes a "FoxTelem.jar"
file.  Is that writable, or did you somehow put it in a location that may
be accessible to multiple users but not writable?

73,

Burns WB1FJ

On Wed, Dec 2, 2020 at 10:14 PM Frank via AMSAT-BB <amsat-bb at amsat.org>
wrote:

> I installed FoxTelem 1.09 on a windows PC.  When I launch the application
> the error message “Could not write spacecraft user properties file.  Check
> permission on run directory or on the file.”  Don’t know how to fix this
> error message.  Thanks for guidance.
>
> Frank
> K6FW
>
>
> > On Nov 30, 2020, at 9:49 PM, Mark Jessop via AMSAT-BB <
> amsat-bb at amsat.org> wrote:
> >
> > A related question: When decoding the BPSK telemetry, what audio IF range
> > can it be present in?
> >
> > In the SatNOGS BPSK demodulator flowgraph, the audio output part of the
> > flowgraph places the signal at a 12 kHz IF. This is necessary for 9k6
> BPSK
> > transmissions, and we fixed it at 12 kHz even for 1200 baud BPSK to
> ensure
> > the signal would remain within the 24 kHz passband (48 kHz sample rate)
> > even if there was a bit of drift at either the ground-station or sat. The
> > audio recordings are currently mainly used with the Funcube telemetry
> > decoder, which is quite happy to decode 1200 baud BPSK at the 12 kHz IF.
> >
> > An example of such an audio recording, with a 1200 baud BPSK signal at 12
> > kHz IF is here:
> >
> https://ia803207.us.archive.org/32/items/satnogs-observation-2403591/satnogs_2403591_2020-06-19T00-39-49.ogg
> >
> > Can FoxTelem be configured to accept BPSK at this IF? If so, then it will
> > be possible to use any of the audio recordings from SatNOGS observations,
> > even if a decoder is not developed in time.
> >
> > 73
> > Mark VK5QI
> >
> > On Tue, Dec 1, 2020 at 4:01 PM Mark Jessop <vk5qi at rfhead.net> wrote:
> >
> >> Is there a link available to a description of the FOX-1E telemetry
> format?
> >> (modulation, framing, error correction, packet descriptions, etc...)
> >>
> >> It would be nice to implement a decoder within SatNOGS, to enable the
> 300+
> >> ground stations around the world to contribute telemetry...
> >>
> >> 73
> >> Mark VK5QI
> >>
> >> On Tue, Dec 1, 2020 at 1:00 PM Burns Fisher via AMSAT-BB <
> >> amsat-bb at amsat.org> wrote:
> >>
> >>> For those of you with Fox-in-a-box telemetry stations (Fun Cube Dongle
> in
> >>> a
> >>> Raspberry Pi with FoxTelem software), FoxTelem 1.09 has been
> successfully
> >>> tested on an FIAB.
> >>>
> >>> It is easy to update your FIAB with the new FoxTelem version.  Some
> time
> >>> ago, I provided the instructions for upgrading to a new FoxTelem
> release
> >>> at
> >>>
> >>>
> http://burnsfisher.com/AMSAT/FoxInABox/Updating%20FoxTelem%20on%20your%20Fox-in-a-Box.txt
> >>> and they will not have changed significantly other than the version
> >>> numbers.
> >>>
> >>> In any case, over the next few days, I will update and post the
> >>> instructions as well as making the new version available on the FIAB SD
> >>> cards sold in the AMSAT store and (a bit after that) on the free
> download.
> >>>
> >>> Thanks to Chris for a great new version!
> >>>
> >>> 73,
> >>>
> >>> Burns WB1FJ
> >>>
> >>> On Mon, Nov 30, 2020 at 7:32 PM Chris Thompson via AMSAT-BB <
> >>> amsat-bb at amsat.org> wrote:
> >>>
> >>>> This release provides several enhancements and needed changes for
> >>> RadFxSat,
> >>>> also
> >>>> known as FOX-1E. This new spacecraft sends 1200bps BPSK telemetry in
> >>>> parallel
> >>>> with a linear transponder.  Downloading telemetry and sending it to
> the
> >>>> server will assist
> >>>> AMSAT and the Radiation tolerance experiments from Vanderbilt
> >>> University.
> >>>>
> >>>> You can download it here:
> >>>> http://amsat.us/FoxTelem/windows/FoxTelem_1.09n3_windows.zip
> >>>> http://amsat.us/FoxTelem/linux/FoxTelem_1.09n3_linux.tar.gz
> >>>> http://amsat.us/FoxTelem/mac/FoxTelem_1.09n3_mac.tar.gz
> >>>>
> >>>> The following changes are in 1.09 (from 1.08):
> >>>> * Performance improvements on the telemetry tabs.  This uses less CPU
> >>> than
> >>>> 1.08.
> >>>> * Clearer display of historical records on the telemetry tabs for RT,
> >>> MAX,
> >>>>  MIN and WOD.
> >>>> * Bug fixes for Fox-1E decode and display of diagnostic tables, Whole
> >>> Orbit
> >>>> Data,
> >>>>  formatting of telemetry
> >>>> * Ignore extra commas in conversion curve comments
> >>>> * Allow a single spacecraft to be downloaded from the Fox Server, even
> >>> if
> >>>>  FoxTelem stores many spacecraft
> >>>> * Latest Golf-T layouts for development
> >>>> * BPSK CRC checksum calculation for GOLF-T
> >>>> * Another new way to decode and display the mode
> >>>> * More generic tab layouts to allow future expansion through soft
> coding
> >>>> * Throttle the DDE requests when decoder stopped
> >>>> * Many other bug fixes
> >>>>
> >>>> See the complete list on github here:
> >>>>
> >>>>
> >>>
> https://github.com/ac2cz/FoxTelem/issues?q=is%3Aclosed+is%3Aissue+milestone%3A%22Release+1.09%22+
> >>>>
> >>>> --
> >>>> Chris E. Thompson
> >>>> chrisethompson at gmail.com
> >>>> g0kla at arrl.net
> >>>> _______________________________________________
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> of
> >>>> AMSAT-NA.
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> >>>>
> >>> _______________________________________________
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> >>> to all interested persons worldwide without requiring membership.
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> of
> >>> AMSAT-NA.
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> >>>
> >>
> > _______________________________________________
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> > to all interested persons worldwide without requiring membership.
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> > are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
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>
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
>