Okt 25 2017
Viktig information runt uppskjutningen av RadFxSat/Fox-1B den 10:e november 2017:
AMSAT Vice-President Engineering, Jerry Buxton, NØJY wrote what to
initially expect when the AMSAT RadFxSat/Fox-1B cubesat is launched
as a passenger on NASA’s ELaNa XIV mission on Friday, Nov. 10, from
Vandenberg Air Force Base, California.
Liftoff will be aboard a United Launch Alliance Delta II rocket from
Space Launch Complex 2 and is targeted for 1:47 a.m. PT (4:47 a.m. ET,
9:47 am UTC) at the opening of a 65-second launch window. Launch cov-
erage will begin on NASA Television and the agency’s website at
1:15 a.m. PT.
RadFxSat/Fox-1B will automatically come up in Beacon Mode, transmitting
a beacon and voice ID (Veronica saying ”RadFxSat Safe Mode”) every two
minutes, starting about 50 minutes after deployment. The AMSAT command
stations will want to see voltage and current data to determine that
it’s healthy and conduct various tests before opening it up for general
Telemetry makes the engineering and operations teams very happy,
starting ASAP after startup (~55 minutes after deployment) and for
the next 72-96 hours at least as we look for successful startup, watch
the general health and function as the satellite begins to acclimate
to space, and perform the on orbit checkout. Ground stations are also
invited to continue uploading received telemetry for the life of the
If you are capturing telemetry with FoxTelem please be sure that ”Upload
to Server” is checked in your settings, and your Ground Station Params
are filled in as well. You can help AMSAT and everyone waiting to get
on the air with RadFxSat tremendously, by capturing RadFxSat telemetry.
In the initial Beacon Mode, the transmitter is limited to 10 seconds on
time then does the two minutes off cycle as Paul pointed out. For those
of you capturing telemetry, that means that you will only see Current
frames and no High or Low frames because the High and Low are truncated
as it takes just over 10 seconds to send two frames. Veronica may also
be cut off before she gets to say her whole ID string. If Veronica is
speaking, ”RadFxSat Fox-1B Safe Mode” which is the full ID, if it’s cut
off then we’re still in Beacon Mode. If we are seeing good data from
user telemetry data, it is likely when it comes over the U.S. for the
first good pass we will command it from Beacon Mode to normal Safe Mode,
which then puts RadFxSat in full (still Safe Mode though) operation and
transmits a full two frames of telemetry which is one Current frame
followed by, and alternating each ID cycle, a High or a Low frame.
Veronica now has time to make the whole ID announcement, in Safe Mode.
YOUR HELP IS NEEDED!
Jerry, NØJY commented further …
Help your friends and all of our satellite ham friends get on the air
and have fun sooner by being polite and patient!
The on orbit checkout procedure is similar to Fox-1A/AO-85 and could
be completed in as little as a few days if we have the cooperation of
the users. It is very important, not to mention just plain good Amateur
Operating Practice, to refrain from using the transponder uplink so we
can do the on orbit tests, including when we turn on transponder mode
for testing. I can’t stress enough, the importance of this cooperation
not just for us but for all users, simply having a little patience so
we can conduct the tests as quickly and accurately as possible.
AMSAT will make it broadly known when the tests are complete and the
transponder is available for all to use. If you hear someone on the
transponder, please don’t assume that it is open for general use –
check the AMSAT website, Facebook, Twitter, to be sure you’re not
accidentally jumping in with and unwittingly interfering with the
Lots of hams put thousands of volunteer hours of their time into making
RadFxSat happen. Just like any ham radio project you might undertake,
we build satellites. We do it because we like to, and when we’re done
we freely share our project with hams everywhere as is the spirit of
I am asking all satellite hams to contribute just a little bit of your
time to the fun now, by being patient and just gathering telemetry,
not using the transponder uplink, and helping us complete the last few
days of getting RadFxSat in orbit and operating for all of you.
Thank you very much, see you on the bird!