Very cool, thanks for posting the details. Sounds like a great project. Is it relaying any telemetry such as water temperature? Or just position, which is interesting for sure.
Managing to upload data to a sat would be a fantastic next step, but I can already see the technical challenges with that. Perhaps relaying the data via an open linear transponder using PSK, with a sensitive ground station listening for the results? That seems more realistic than uploading data to a mailbox like FalconSat-3 or similar.
Anyway, great to see projects like this engaging students.
73 Chris
On Thu, Jul 16, 2020 at 9:28 PM Phil Karn via AMSAT-BB amsat-bb@amsat.org wrote:
On 7/16/20 16:20, GEO Badger wrote:
Very cool Phil.. Thanks for sharing that.
As an ex-employee of MBARI, I can tell you that we threw a lot of stuff in the water that took more development time and cost than yours with similar results.
Well, it remains to be seen just how long we'll last. I think we probably over-engineered this thing, and I wouldn't be surprised if it continues to float long after the batteries die. We did mark it to give us a chance of getting it back should it be discovered on a beach someday.
We're already tossing around lots of ideas for a follow-on. Beware the second system effect...
Phil
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