[Ground-station] Please vote - Ambasat sensor

Michelle Thompson mountain.michelle at gmail.com
Thu Sep 26 22:30:39 PDT 2019


We can design our own sensor. There's a blurb about it on the site and
specs for the footprint and interface.

If someone commits to build and test, I can work with Ambasat to see if we
can get it on there.

On Thu, Sep 26, 2019, 22:27 Douglas Quagliana <dquagliana at gmail.com> wrote:

> Rather than a sensor, could we get an ulta stable oscillator (USO) for
> some frequency in an amateur satellite band? We would just need the USO, a
> small amplifier and an antenna. Even an inefficient antenna. Even if we’re
> only radiating a few milliwatts. There’s still a lot of good science we can
> do from an unmodulated carrier with Doppler.
>
> Regards,
> Douglas
>
> On Sep 26, 2019, at 6:24 PM, Michelle Thompson via Ground-Station <
> ground-station at lists.openresearch.institute> wrote:
>
> There are solar panels.
>
> From https://ambasat.com/ambasat-2/ambasat-1/
>
> "AmbaSats are just a little bigger than the size of a couple of postage
> stamps but have solar cells, a LoRaWAN radio transceiver..."
>
> For the dashboard, there's a big hint here:
> "Your AmbaSat-1 is fully TTN compliant so as well as viewing data in your
> Dashboard, you can sign-up for a TTN account and access your satellite’s
> sensor data directly using a range of different TTN extensions."
>
> I think the dashboard is essentially The Things Network. I'll see what I
> can find out about the dashboard availability.
>
> Interesting question about HABs! I think several people on this list are
> much more active than I am in designing and building payloads, and might be
> able to give an evaluation based on what's on the ambasat.com website.
>
> -Michelle W5NYV
>
>
>
>
> On Thu, Sep 26, 2019 at 11:56 AM KC9SGV <kc9sgv at gmail.com> wrote:
>
>> The "three months in space" bit, makes me wonder.
>> Maybe out of power by then ?
>> (Don't see any solar panels on the board.)
>> What would the possibility be to use the board as payload on a HAB (high
>> altitude balloon).
>> Maybe a Mylar balloon cluster achieving float, like the current Miami
>> effort ?
>> Then the environmental modules would make sense.
>> Could you get the dashboard and web based tracking without buying the
>> launch ?
>>
>> Bernard,
>> KC9SGV
>> Sent from my iPad
>>
>> On Sep 26, 2019, at 1:11 PM, Howie DeFelice via Ground-Station <
>> ground-station at lists.openresearch.institute> wrote:
>>
>> It has a LoRA radio on board which is really cool. I always thought that
>> LoRA on a LEO would make a great Store  and Forward messaging sat. The
>> chirp spread spectrum modulation handles doppler quite well and LoRA chips
>> on carrier boards are easy to find to make ground stations.  Unfortunately
>> there is little chance we could license it since the FCC decided that
>> anything smaller than a 1U cubesat is too small to track.
>>
>> Howie
>> AB2S
>> ------------------------------
>> *From:* Ground-Station <
>> ground-station-bounces at lists.openresearch.institute> on behalf of
>> Michelle Thompson via Ground-Station <
>> ground-station at lists.openresearch.institute>
>> *Sent:* Thursday, September 26, 2019 11:26 AM
>> *To:* Michelle Thompson via Ground-Station <
>> ground-station at lists.openresearch.institute>
>> *Subject:* [Ground-station] Please vote - Ambasat sensor
>>
>> I bought into the Kickstarter for Ambasat.
>> https://ambasat.com/
>> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fambasat.com%2F&data=02%7C01%7C%7C2c3f3cef695d4bdb07b208d7429697ee%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637051086889564741&sdata=HQ1maV9Z5PGG%2BUZf%2FqV5zFpH8qsFQ0WDvC4BHQkJ5rE%3D&reserved=0>
>>
>> I’d like you all to help choose the sensor!
>>
>> Choices here:
>> https://ambasat.com/ambasat-2/sensor-options/
>> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fambasat.com%2Fambasat-2%2Fsensor-options%2F&data=02%7C01%7C%7C2c3f3cef695d4bdb07b208d7429697ee%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637051086889574740&sdata=0gUbpgbQldmIxAydIuXk6fdBWaQQmBuY8yEH48Rpe64%3D&reserved=0>
>>
>> Disclaimer:
>> This has nothing to do with our project. I acknowledge that Ambasat is
>> controversial. No project funds are involved.
>>
>> Why post this here?
>>
>> Details:
>> I asked Ambasat about a custom amateur radio payload, so we could test
>> something for us. The kickstarter had that option. The lead of Ambasat said
>> yes, amateur payload ok, several people I asked at Virginia Tech said go
>> for it, and a small group looked at the specs and tried to design something
>> useful for us. But, the very compact size and power budget was quite
>> daunting. And the time frame was very short. We don’t have enough
>> miniaturization or time. Instead of a custom board, we have a standard
>> flight and a ground version.
>>
>> Instead of quietly sending this up, I wanted to share it with the team as
>> something fun. I just received the survey for the sensors, so we easily
>> have a week at least to vote. It includes some sensors already. The free
>> choice is an additional sensor slot.
>>
>> -Michelle W5NYV
>>
>>
>> --
>> -Michelle W5NYV
>>
>> "Potestatem obscuri lateris nescis."
>>
>>
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