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I don't have any actual data but I don't see why it would - there's no metal in an Ikelite case except for the control knobs.
Inside a steel boat cabin might cause problems if the camera/housing was elsewhere. Gopro's use wifi and most I've seen don't get removed from their case although it's slightly thinner plastic.
Your Nikon probably has a slightly better transmitter than the Gopro also...lol.