The Serenity satellite is a CubeSat that offers low-cost
opportunities to test educational experiments in space.
It has a suite of data sensors and a camera that will
send data back to Earth.
Licensed as an amateur radio broadcaster, Serenity can
communicate with radios on the ground. Anyone with a ham
radio can "talk" to Serenity. With a simple ground station,
you can connect with the satellite during its orbital
period and can collect data and pictures as they are
transmitted back to Earth. Read on for lessons on building
an inexpensive radio and tracking system.
<https://tis.org/serenity-satellite/>
real time satellite tracking
<https://www.orbtrack.org/#/?satSCN=60208>
Danke,
Don wrote:
The Serenity satellite is a CubeSat that offers low-cost
opportunities to test educational experiments in space.
It has a suite of data sensors and a camera that will
send data back to Earth.
Licensed as an amateur radio broadcaster, Serenity can
communicate with radios on the ground. Anyone with a ham
radio can "talk" to Serenity. With a simple ground station,
you can connect with the satellite during its orbital
period and can collect data and pictures as they are
transmitted back to Earth. Read on for lessons on building
an inexpensive radio and tracking system.
<https://tis.org/serenity-satellite/>
real time satellite tracking
<https://www.orbtrack.org/#/?satSCN=60208>
Thank you, interesting, may look for it with a RTL_SDR stick on my Pi4.
Jan Panteltje wrote:
Don wrote:
The Serenity satellite is a CubeSat that offers low-cost
opportunities to test educational experiments in space.
It has a suite of data sensors and a camera that will
send data back to Earth.
Licensed as an amateur radio broadcaster, Serenity can
communicate with radios on the ground. Anyone with a ham
radio can "talk" to Serenity. With a simple ground station,
you can connect with the satellite during its orbital
period and can collect data and pictures as they are
transmitted back to Earth. Read on for lessons on building
an inexpensive radio and tracking system.
<https://tis.org/serenity-satellite/>
real time satellite tracking
<https://www.orbtrack.org/#/?satSCN=60208>
Thank you, interesting, may look for it with a RTL_SDR stick on my Pi4.
Pi 2s are the only Raspberry devices available to me for the time being.
So my plan is to use a FreeBSD PC instead. Supposedly a multipurpose
dipole antenna works. But a Yagi probably works better.
Don wrote:
Jan Panteltje wrote:
Don wrote:
The Serenity satellite is a CubeSat that offers low-cost
opportunities to test educational experiments in space.
It has a suite of data sensors and a camera that will
send data back to Earth.
Licensed as an amateur radio broadcaster, Serenity can
communicate with radios on the ground. Anyone with a ham
radio can "talk" to Serenity. With a simple ground station,
you can connect with the satellite during its orbital
period and can collect data and pictures as they are
transmitted back to Earth. Read on for lessons on building
an inexpensive radio and tracking system.
<https://tis.org/serenity-satellite/>
real time satellite tracking
<https://www.orbtrack.org/#/?satSCN=60208>
Thank you, interesting, may look for it with a RTL_SDR stick on my Pi4.
Pi 2s are the only Raspberry devices available to me for the time being.
So my plan is to use a FreeBSD PC instead. Supposedly a multipurpose
dipole antenna works. But a Yagi probably works better.
For an rtl-sdr stick all you need is an USB port.
I have an old Pi 2? that logs my outside weather station that way,
uses rtl_433 (also open source one the web).
The xpsa spectrum analyser I wrote runs perfectly on a PC:
https://panteltje.nl/panteltje/xpsa/index.html
that is an old version, should compile on a PC.
The latest version also has FM stereo, and many more options and I ported it to raspi:
https://panteltje.nl/pub/xpsa-0.7.gif
runs perfectly on a Pi2
I checked that 437.1 MHz frequency last night, no signal there,
will have to look up the right times.
Also my indoor antenna is likely no good, I do have a big old TV antenna with 4 bowties
and a small yagi somewhere.
As to tracking: I tested a yagi connected to 2 servos some years ago,
there is some open source code for tracking some Oscar sats IIRC.
Jan Panteltje wrote:
Don wrote:
Jan Panteltje wrote:
Don wrote:Pi 2s are the only Raspberry devices available to me for the time being. >>>So my plan is to use a FreeBSD PC instead. Supposedly a multipurpose >>>dipole antenna works. But a Yagi probably works better.
The Serenity satellite is a CubeSat that offers low-cost
opportunities to test educational experiments in space.
It has a suite of data sensors and a camera that will
send data back to Earth.
Licensed as an amateur radio broadcaster, Serenity can
communicate with radios on the ground. Anyone with a ham
radio can "talk" to Serenity. With a simple ground station,
you can connect with the satellite during its orbital
period and can collect data and pictures as they are
transmitted back to Earth. Read on for lessons on building
an inexpensive radio and tracking system.
<https://tis.org/serenity-satellite/>
real time satellite tracking
<https://www.orbtrack.org/#/?satSCN=60208>
Thank you, interesting, may look for it with a RTL_SDR stick on my Pi4. >>>
For an rtl-sdr stick all you need is an USB port.
I have an old Pi 2? that logs my outside weather station that way,
uses rtl_433 (also open source one the web).
The xpsa spectrum analyser I wrote runs perfectly on a PC:
https://panteltje.nl/panteltje/xpsa/index.html
that is an old version, should compile on a PC.
The latest version also has FM stereo, and many more options and I ported it to raspi:
https://panteltje.nl/pub/xpsa-0.7.gif
runs perfectly on a Pi2
I checked that 437.1 MHz frequency last night, no signal there,
will have to look up the right times.
Also my indoor antenna is likely no good, I do have a big old TV antenna with 4 bowties
and a small yagi somewhere.
As to tracking: I tested a yagi connected to 2 servos some years ago,
there is some open source code for tracking some Oscar sats IIRC.
These trackers work for me:
<https://www.n2yo.com/satellite/?s=60208>
<https://www.orbtrack.org/#/?satSCN=60208>
but this one doesn't:
<https://stltracker.github.io/>
These two Apps allowed me to use an rtl_433 to track flights from my
FreeBSD PC:
<https://osmocom.org/projects/rtl-sdr/wiki/Rtl-sdr> ><https://github.com/antirez/dump1090>
pkg install rtl-sdr
My Wouxun 70cm transceiver lacks built-in capabilites to send and
receive text messages, so it must use another App:
<https://github.com/dalethomas81/HamMessenger>
At this point my rig ought to be able to send commands to the satellite
from my shack. ROTFLMAO.
Jan Panteltje wrote:
Don wrote:
<snip>
My Wouxun 70cm transceiver lacks built-in capabilites to send and
receive text messages, so it must use another App:
<https://github.com/dalethomas81/HamMessenger>
Only have a Baofeng portable for 70 cm now, so... would require some soldering.
I do have some powerfull shortwave stuff.
And satellite stuff.
At this point my rig ought to be able to send commands to the satellite >>>from my shack. ROTFLMAO.
Well let us know if you can get a response from that thing!
I have 3 Raspberry Pis running 24/7 now., on a UPS, plus an other 2 standby. >> Posting this from a Pi4 8 GB with the Usenet newsreader I wrote.
Lots of camera stuff on those, IR camera module too..
several other sensors, temperature, air pressure, CO2, combustable gasses, >> radiation..., GPS...
2 4TB harddisks on USB hubs... POE module...
No shortage of computahs
I was reading that Musk now has $500 portable satellite terminals and a
$50 a month subscription for 50 GB / month
So far US only...
May go for it if global.
Beats local G4 prices.
It turns out HamMessenger is not for me because it runs on a bespoke
backpack board:
<https://raw.githubusercontent.com/dalethomas81/HamMessenger/master/Media/CAD/Isometric.png>
<https://github.com/dalethomas81/HamMessenger/blob/master/Media/Unibody-Frame-v1/front.jpeg>
Although a used PK-232 was acquired about a decade ago, an Elecraft >transceiver with built-in digital data modes was purchased shortly >thereafter. So the PK-232 was shelved, until now. It's very old
school. A peek under its cover depressed me:
<https://i.ebayimg.com/images/g/6hsAAOSwIw5kaABG/s-l1600.jpg>
In the end, Dire Wolf on a RPi seems like the best bet at this point in
time:
Why waste $200 and settle for mediocre receive performance
from a 1980's technology TNC using an old modem chip? Dire
Wolf decodes over 1000 error-free frames from Track 2 of
the WA8LMF TNC Test CD, leaving all the hardware TNCs,
and first generation "soundcard" modems, behind in the dust.
<https://github.com/wb2osz/direwolf>
Don wrote:
My Wouxun 70cm transceiver lacks built-in capabilites to send and
receive text messages, so it must use another App:
<https://github.com/dalethomas81/HamMessenger>
Only have a Baofeng portable for 70 cm now, so... would require some soldering.
I do have some powerfull shortwave stuff.
And satellite stuff.
At this point my rig ought to be able to send commands to the satellite >>from my shack. ROTFLMAO.
Well let us know if you can get a response from that thing!
I have 3 Raspberry Pis running 24/7 now., on a UPS, plus an other 2 standby. Posting this from a Pi4 8 GB with the Usenet newsreader I wrote.
Lots of camera stuff on those, IR camera module too..
several other sensors, temperature, air pressure, CO2, combustable gasses, radiation..., GPS...
2 4TB harddisks on USB hubs... POE module...
No shortage of computahs
I was reading that Musk now has $500 portable satellite terminals and a
$50 a month subscription for 50 GB / month
So far US only...
May go for it if global.
Beats local G4 prices.
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