Radar beacon (racon)
Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union´s (ITU) ITU Radio Regulations (RR) – defined as "A transmitter-receiver associated with a fixed navigational mark 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." Each station (transmitter-receiver, radar) shall be classified by the service in which it operates permanently or temporarily.
Principle of operation
When a racon receives a radar pulse, it responds with a signal on the same frequency which puts an image on the radar display. 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 the normal plan position indicator radar display. The length of the line usually corresponds to the equivalent of a few nautical miles on the display.
Within the United States, the United States Coast Guard operates about 80 racons, and other organisations also operate them, for example the owners of oil platforms. Their use for purposes other than aids to navigation is prohibited, and they are used to mark:
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Rich And Black (ft. Nas)
by: Raekwonease no game, you fire i'm chain, gave attempts
please be the times that i surprise myself
my niggers looking like black crows and pack shows
the dawn voice stay pristine like i'm still 17
i'm rich, black, african rocking the golden mat
...leather gucci's ...on my back... in the trench
...these niggers, eating 6 gazelles, dicing any defense
mike tyson disciple, trifle with my pen is a rifle
16 ways to shoot you through your
but do you exhale ...with niggers the jail's off, ah
you bring the best niggers to the table, i set 4 of my whales on you
custom what he speakers rump on polices, dump on creatures
holidays you preach us, stainless steel watches, hostages turning next, here's the deal
if we can't come in they can't have the feel
...your system, murder excremental, rap, harmony and horses live efficient
along with generals who flash uzzies in interviews
my shit is
verse 2 gotta be all murder just like verse 1
...yellow like hair on a malibu surfer,
yellow like my , yellow like new york city pissed and concrete
yo, who voted oath ...and the wind, las vegas odors what you know, we leave it right here
we go to the loadest, put a package on your head, be promoted
peace and effect, panties off and donuts
i hate to see you acting like a slave to get an advance here, and advance there