The Serenity Orbital Education Platform

Jul 23, 2024 Last reply: 1 year ago 3 Replies

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.



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real time satellite tracking

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Danke,


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.

Danke,

These trackers work for me:

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but this one doesn't:

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These two Apps allowed me to use an rtl_433 to track flights from my FreeBSD PC:

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pkg install rtl-sdr

My Wouxun 70cm transceiver lacks built-in capabilites to send and receive text messages, so it must use another App:

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At this point my rig ought to be able to send commands to the satellite from my shack. ROTFLMAO.

Danke,

<snip>

It turns out HamMessenger is not for me because it runs on a bespoke backpack board:

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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:

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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.

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Danke,

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