#radio_transmitter__radiotransmitter  transmitter that is the part of a radio system that transmits signals
  supertype:  #transmitter__sender  set used to broadcast radio or tv signals
  part of:  #radio
  subtype:  #spark_transmitter__sparktransmitter  an early radio transmitter using a discharge across a spark gap as the source of its power

No statement uses or specializes #radio_transmitter; click here to add one.