[amsat-bb] FoxTelem Version 1.07 released

[Doug Phelps]

Chris,

Thanks for all the work you put into the decoder program.


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‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Sunday, March 17, 2019 8:05 PM, Chris Thompson <g0kla at arrl.net> wrote:

> I'm officially releasing version 1.07 of FoxTelem. A test version has been
> out for a while, but it had several issues, including a lower decode rate
> than 1.06. That prevented release for a while. Those issues (and
> something like 65 other defects) are now all fixed and this decoder
> performs better than 1.06. Feel free to test them side by side and report
> back if that is not the case for you. We are always interested in any
> comparative results.
>
> In addition to defects in FoxTelem 1.06 and earlier versions of 1.07, this
> also introduces Doppler calculation with automatic adjustment of the
> decoder frequency. This is especially useful for decoding beacons and has
> been helpful in testing for Fox-1A / AO-85 and Fox-1Cliff / AO-95 which are
> both in SAFE mode. Decoding from Doppler takes a bit of configuration to
> get right. Have a read of the new sections in the manual or ask for help
> if you want to give it a try. There are pros and cons vs "Find Signal" for
> sure.
>
> Version 1.07 changes the core SDR within FoxTelem to use a Numerically
> Controlled Oscillator (NCO) rather than an FFT Filter for the conversion to
> base-band. This produces better decodes and will allow the support of
> wider bandwidth SDRs in the future. The old decoder is available still if
> needed from the settings screen. Read the manual for details.
>
> Version 1.07 also introduces two new BPSK decoders in advance of the Fox-1E
> launch. (I have no inside information about when that will be, but I have
> the decoder ready :) I also wrote some notes on the comparison between the
> two decoders, which you can read if you are interested in BPSK decoding
> performance, or just wonder what I do with my time in the evenings:
> http://www.g0kla.com/workbench/2019-03-09.php
>
> The releases are here:
> http://amsat.us/FoxTelem/windows/foxtelem_1.07y_windows.zip
> http://amsat.us/FoxTelem/linux/foxtelem_1.07y_linux.tar.gz
> http://amsat.us/FoxTelem/mac/foxtelem_1.07y_mac.tar.gz
>
> KEY CHANGES in 1.07
>
>     * Ability to add a new spacecraft from the menu.  You can also remove them.
>     * Doppler calculation and tracking as an option instead of "Find Signal"
>     * A better SDR based on a Numerically Controlled Oscillator, ready for
>     wider SDRs
>     * Two new PSK decoders - Costas Loop and Dotproduct
>     * RTL dongle implemented for testing, though more work to do
>     * Stops downloading keps when position calc is off
>     * Allows toggling of high speed / DUV display when in auto mode
>     * Fixed plotting issues for Earth plots
>     * Fixes several crashes and bugs
>     * Fixes copy paste issues with tables
>     * Respects left/right audio preference when processing wav files
>     * Implements formats for later spacecraft - Fox-1E and HuskySat
>     * Linux and Mac launch script updated to locate the JVM (especially on
>     Mac).  Please report if when this works/does not work
>     * MEMS gyro calibration updated
>     * Fixed a bug where AO-85 data from the server could not be stepped through
>
>     And many other bug fixes. Full list of changes here:
>     https://github.com/ac2cz/FoxTelem/milestone/12?closed=1
>
>     Let me know any feedback.
>
>     73
>     Chris
>     G0KLA / AC2CZ
>
>     --
>     Chris E. Thompson
>     chrisethompson at gmail.com
>     g0kla at arrl.net
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