Venus GPS - encapsulated in epoxy....

I just did a trial run with PVC pipe and the gps seemed to operate no differently than if it was in free air - acquisition time was 20 something seconds each time.

eviltwinzzz, I think you’re on to something. I thought the epoxy would be the most durable (and extra mass is a positive thing) but given the hassles and the fact that I would end up with a large air pocket anyways I might as well just enclose it in PVC.

You could probably use zip-loc bags filled with sand or something similar as ballast to fill the air space in the pvc pipe.

Maybe a t-connector and mount the antenna on the inside of an end cap.

So, what’s this going to track when it’s done?

If you want it waterproof to only 10m, there are a lot of solutions you could use, like an otter-box…

http://www.otterbox.com/waterproof-cases/ Some of their stuff goes to 30m, at least, and you’d be able to easily remove it for maintenance/upgrades/anything.

If you need the signals to come out, you can just use a simple cable gland.