I agree: most main transmitters use horizontal polarisation whilst most smaller 'relay' transmitters use vertical polarisation. Vertically and horizontally polarised signals do not regularly interfere with each other. It is related to do with available frequencies and preventing interference between signals on similar frequencies as we see in the reference in https://fpformacionprofesional.com/, please check if you need it.
Friday 24 September 2021 12:13AM
I agree: most main transmitters use horizontal polarisation whilst most smaller 'relay' transmitters use vertical polarisation. Vertically and horizontally polarised signals do not regularly interfere with each other. It is related to do with available frequencies and preventing interference between signals on similar frequencies as we see in the reference in https://fpformacionprofesional.com/, please check if you need it.