Q1 for me here 🙂 Something I have never come across before, but a query I need to look at. I have designed a wireless solution at height and the antennas in a specific location are blocked from LOS by what is a ceiling mounted smoke curtain approx 2m long, at a height of 8-10m A.F.L. Below the curtain is open space. The curtain is weighted down with a steel rod. The curtain is made from flexible sheet fibreglass I am advised, but there are no propagation values for this material that I can see. Only rockwool / foil backed insulation materials typically used in domestic properties and commercial offices. Anyone like to put a figure on this, or even by the very name, confirm it refracts the signal. The solution is for RTLS. Thanks. Look fwd to the responses.
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