#transmitter__sender  set used to broadcast radio or tv signals
  supertype:  set.electronic_equipment  any electronic equipment that receives or transmits radio or tv signals; "the early sets ran on storage batteries"
  subtype:  jammer  radio_transmitter  satellite_transmitter  television_transmitter
  part:  aerial__antenna__transmitting_aerial  an electrical device that sends or receives radio or television signals

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