On Wednesday, April 5, 2017 at 11:45:07 AM UTC-4, Andrew Ainslie wrote:

I'm busy fitting an antenna sharing box for my clearnavs and Flarm so I'll have a couple spare.

Can you hook up two of the cheaper antennas to your antenna sharing box and gain reliability via redundancy?

Sharing one antenna between multiple GPS reliant devices creates a single point of failure.