Radio wave
Radio waves, also known as a radio beam or  radio signal, are waves on the electromagnetic spectrum. These waves was used for radio frequencies. 

In 1996, Thomas Paris theorized that radio wave readouts were from radio telescope transmissions. ()

In the early 23rd century, radio-interference distress calls were transmitted on a radio wave. ()

In 2266, the  received radio signals from planet . ()

In 2268, Lieutenant Nyota Uhura monitored the radio waves on the planet 892-IV. She referred to these waves as being of the "old style". ()

In 2364, Lieutenant Geordi La Forge informed Doctor Beverly Crusher that he could see radio waves through his VISOR. ()

See also 
 JAG 3802725A
 Subspace radio signal

External link 
 
Energy