On January 5, 2019 at 19:58, davidcasemore said...
the electrician ran copper-clad steel RG6 Quad and the AV integrator (I was strictly doing lighting and shades) installed Snap (Binary) HDMI-over-Coax devices from the EQ room to 16 TV locations. None of them worked. I grabbed the instructions from one of the boxes where it plainly stated "must use solid copper coax".
Did you fail to let the electrician know the specs that YOU needed? That would have been your job, no?.