Fox-1Cliff, Fox-1D Launch Now Scheduled for Fall 2016

AMSAT has been informed that the launch period for Fox-1Cliff and Fox-1D has been moved and is now commencing on September 1, 2016 and ending on November 30, 2016.

Fox-1Cliff and Fox-1D will be integrated onto the Spaceflight SHERPA platform for its maiden flight aboard a SpaceX Falcon 9 launching into a sun-synchronous orbit from Vandenberg Air Force Base. Fox-1Cliff and Fox-1D carry university experiments from Pennsylvania State-Erie, Vanderbilt, University of Iowa, cameras provided by Virginia Tech, as well as amateur radio voice repeaters capable of U/v or L/v operation.

Fox1-Cliff Logo Fox-1D Logo

FoxTelem Release 1.04 Supports New Graphs, Better Performance, and the Upcoming Launches

From FoxTelem developer Chris Thompson, G0KLA / AC2CZ:

This is a quick note to say that FoxTelem Version 1.04 is being released. There is a lot in this version so I have written some blog posts to summarize new features.  See below.

You can download FoxTelem for your platform from one of these links:

Broadly speaking the changes fit into the following categories:

1. Full support for Fox-1Cliff, Fox-1D and RadFXSat including better High Speed decoding and a better find signal algorithm.

2. Additional analytical capabilities so you can plot one telemetry variable against another.  I hope this will inspire more people to analyze the telemetry from the spacecraft and post comments on what they see.  I have put some of my own thoughts online here:

3. Enhanced tools to analyze your ground station with SkyPlots for satellite measurements like Signal to Noise ratio and graphs for pass measurements. Skyplots in particular need a bit of explanation, so I have written more details here:

You can read a full list of the changes here on github:


FoxTelem Version 1.03 Released

FoxTelem Version 1.03 has been released

This version of FoxTelem uses a new datafile format. While we store our
data on the server in an SQL database, we use a flat file database for FoxTelem. A
flat file format is nearly optimal for a program that mostly adds new data to
the end of a growing list. With that said, we need to be able to load sections of
the data into memory for efficient analysis.  The new data file format allows
that. If you have been downloading data from the server for analysis, you will
see that this format is much faster.

Continue reading

New Release of FoxTelem

From the AMSAT Bulletin Board Mailing List:

I wanted to announce the release of FoxTelem Version 1.01. If possible,
everyone should upgrade to this new version. In addition to some new functionality it fixes some bugs and issue that mean more data will be uploaded to the server.

This is a patch release. If you already have 1.00 installed then download
the file

You can download it from:

Only two files have changed (plus the manual). Copy these files into your
install directory
– FoxTelem.jar
– spacecraft/FOX1A_radtelemetry2.csv

You can also download the whole install file and install it in a new
directory. You can use the
settings menu to continue using your existing log files. Ask if you need

Lots has changed in this release and many bugs have been fixed. Please
report any issues
that you see.

Release notes:
* Allow the user to view and set the “track” attribute for each spacecraft
(and other parameters)
* Better doppler tracking in IQ mode and more stable estimate of the
received frequency
* Better Find Signal algorithm with tuning paramaters for experts
* Read Time Zero from the server for each reset and use to plot graphs in
* Set the default fcd frequency to 145930 so that Fox-1A, Fox-1Cliff and
Fox-1D will be in the passband
* Allow the gain to be set on the FCD (rather than hard coded)
* Do not change the FCD LNA or Mixer Gain. Leave unchanged.
* Do not open the FCD unless the start button is pressed
* Fixed a bug where the last 2 bytes of the radiation telemetry were not
decoded correctly
* Allow Vanderbilt radiation experiment to be graphed
* Allow user to select UDP or TCP for upload to the server (but use UDP
for now please)
* Shorten the period between passes so that graphs look continuous
* Ignore duplicate high speed radiation frames – needed for processing
data from the server
* Allow graphs to be hidden so that average or derivative is easier to see
* Notify the user when a new release is available
* Cleaned up the FFT trace with some averaging
* If showRawValues is checked then save CSV files as raw values
* Several updates to the manual

Chris E. Thompson
chrisethompson at
g0kla at