A Radar Beacon (Racon) is a transmitter-receiver associated with a marine aid to navigation which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the triggering radar, providing range, bearing and identification information. This takes the form of a short line of dots and dashes forming a Morse character radiating away from the location of the beacon on a ships radar display. Which usually corresponds to the equivalent of a few nautical miles on the display. Racons usually operate on the 9320 MHz to 9500 MHz marine radar band (X-band), and most also operate on the 2920 MHz to 3100 MHz marine radar band (S-band). Modern racons are frequency-agile; they have a wide-band receiver that detects the incoming radar pulse, tunes the transmitter and responds with a 25 microsecond long signal within 700 nanoseconds. Seven ot the nine Racons in service in Newfoundland and Labrador are along the Coast of Labrador. The other two are at Channel-Port aux Basque lighthouse and Traffic Separation buoy in Placentia Bay.