Hello,
I have connected all four outdoor antennas to the RUTX50 modem, but only ANT0 and ANT1 receive a mobile signal, because connecting antennas ANT2 and ANT3 does not change the Internet data speed at all. ANT2 and ANT3 are not working, so the modem does not reach its full potential and only works as mimo 2x2, not mimo 4x4.