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Tethered GPS Floater

Wondered if anyone had any recommendations for quality lower-cost GPS active antennas suitable for floating on the sea surface. I want rough, real-time position estimates of a vehicle at most a few meters down.

I’m not worried about the errors between the GPS float position and the machine position, just curious what others are using.


I recommend the gps from mrobotics, they have a variety of options at appropriate price points. Beware the most affordable options from online sellers, there are many counterfeit gps modules on the market with poor performance compared to the genuine parts.

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I played with deeper sonar pro. A floating fishfinder with GPS n wireless connection of 100m. Found it was not good for my use as it floated way behind rov n not accurate enough for my purpose but has good potential for yr use model