Did you get your breath back?
I’m wondering about treating myself to one of these as an upgrade to the single channel test gateways I have been playing with, so I am following your experiments with interest. I was looking at a more conventional RPI + RAK831 setup, but this small unit would be a much easier unit to mount on a mast.
Many thanks for your efforts so far. I have spent the week cycling about with a TTNmapper node taped on the back on my bike to see how my gateways are working…