[amsat-bb] Fox Telemetry Decoder Software Version 1.0 Available for Download

Chris Thompson g0kla at arrl.net
Thu Sep 24 13:14:46 UTC 2015


thanks for the feedback.  I exchanged emails with Don earlier in the
project.  There is no way to read the Az El information from MacDoppler
currently.  I'm open to supporting it in the future if that feature becomes


On Wed, Sep 23, 2015 at 6:13 PM, Stefan Wagener <wageners at gmail.com> wrote:

> Hi Chris,
> Very nice tool. Using a Mac I get the security warning and No, using the
> command function to start it did not work (10.10.5 Yosemite). I had to
> change the security settings for the application (possible correction for
> the manual). Also, I would highly encourage you to contact Don Agro (Author
> of MacDoppler) and see if you can find a doppler control integration
> solution with MacDoppler (like you did via DDE with SatPC32 etc.).
> Very much appreciated and more testing will follow,
> Stefan VE4NSA
> On Wed, Sep 23, 2015 at 6:44 AM, Chris Thompson <g0kla at arrl.net> wrote:
>> Fox Telemetry Decoder Software Version 1.0 Available for Download
>> Version 1.0 of the FoxTelem software, the Fox Telemetry Decoder is being
>> released to enable setup, testing, and debugging of your Fox-1A ground
>> station prior to the launch of the satellite. FoxTelem is used to
>> demodulate, store and analyze telemetry data from AMSAT’s Fox series of
>> Cube Sats.
>> Fox-1 satellites include two telemetry formats:
>> + Slow Speed, also called Data Under Voice (DUV) is 200 bps FSK data
>>   sent at the same time as the transponder audio. Whenever the trans-
>>   mitter is on, data is being sent. This happens during beacons and
>>   during live QSOs.
>> + High Speed is 9600 bps FSK sent instead of the transponder. This is
>>   used for data intensive experiments such as the Virginia Tech Camera.
>>   This is only active when commanded from the ground. You can recognize
>>   High Speed because it sounds like an old school computer modem.
>> FoxTelem will receive and store both formats assuming you can feed it
>> audio
>> that does not have the frequencies below 200 Hz filtered.  For High Speed,
>> the audio must also extend to include the full 9600bps bandwidth of the FM
>> signal. For both modes this is best achieved from a Software Defined Radio
>> or from the 9600 bps packet port of some radios. The FoxTelem User Guide
>> provides more details.
>> FoxTelem is supplied as an archive file (.zip on windows, .dmg file on
>> MacOs, .gzip on Linux). Links for downloading can be found at:
>> http://www.amsat.org/?page_id=4532
>> You can unzip the contents and put it in the directory of your choice.
>> Also, detailed in the User Guide, are instructions to select the sound
>> source and set received audio levels on your computer.
>> Until Fox-1A is launched you can confirm everything is working by testing
>> with test wav file which will be available from:
>> http://amsat.us/FoxTelem/recordings . Access to the test file is
>> accomplished by selecting “Load Wav File” from the FoxTelem File menu,
>> then
>> navigate to the directory where you saved the test wav file. Once you
>> press
>> the start button the file will play through the decoder.
>> The FoxTelem page can also be accessed from the main AMSAT web page:
>> http://www.amsat.org --> Fox Project --> FoxTelem Software for Windows,
>> Mac, & Linux
>> The direct link to the page is: http://www.amsat.org/?page_id=4532
>> --
>> Chris E. Thompson
>> chrisethompson at gmail.com
>> g0kla at arrl.net
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Chris E. Thompson
chrisethompson at gmail.com
g0kla at arrl.net

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