Wikipedia
A Ramark is a type of radar beacon occasionally used to mark maritime navigational hazards. The word is an acronym for RAdar MARKer.
They are wide-band beacons which transmit either continuously or periodically on the radar bands. The transmission forms a line of Morse characters on a plan position indicator radar display which radiates from the centre of the display to its edge.
Periodic transmissions every few seconds are usually used so that important radar targets behind the ramark beacon are not masked by the Morse characters. Ramark beacons are less commonly used than Racon beacons which give the location as well as the bearing of the hazard and do not clutter the display so much.
Usage examples of "ramark".
They included male and female humanoids of the same species as Ramark, of all ages, shapes, and sizes.
As Corsi and the away team walked around the room inspecting the technology, Ramark activated the main communications console, which was built into a circular desk at the center of the chamber.
Out of the corner of her eye, she saw Ramark duck behind his communications console for shelter.
He lifted Ramark, turned him in a horizontal position, and then placed the smaller man under one of his large, muscular arms.
I assume Ramark told you what happened to this world under Portlyn’s ownership?