Are TV broadcast signals sent by microwaves?

Yes, TV broadcast signals are typically transmitted using radio waves, which are a type of electromagnetic radiation. Within the radio wave spectrum, there are various frequencies, including microwaves, that can be used for transmission. However, standard TV broadcasts generally utilize frequencies in the VHF (Very High Frequency) and UHF (Ultra High Frequency) bands, which are lower than microwave frequencies. Therefore, while microwaves can be part of the transmission process, traditional TV signals are not solely sent by microwaves.