distance marker

distance marker

[′dis·təns ‚märk·ər]
(engineering)
One of a series of concentric circles, painted or otherwise fixed on the screen of a plan position indicator, from which the distance of a target from the radar antenna can be read directly; used for surveillance and navigation where the relative distances between a number of targets are required simultaneously. Also known as radar range marker; range marker.
References in periodicals archive ?
Olympic running distance marker posts, in kilometres, are in place along the route from Tonteg to the Cross Inn end with access points for able bodied and disabled from roads and paths.
Don't Panic was all the rage after his Spring Mile romp here last month, and the 6-4 favourite appeared to have sealed matters when edging on approaching the distance marker.
On three occasions he was a sitting duck at the distance marker, ready for the sucker punch, but he fought back every time and suggested he still had something in the tank.
It came down to a ruling that surprised Valencia coach Andy Raevouri, whose team finished one stroke ahead of the three-time league-champion Indians before being assessed one penalty stroke because Valencia player Tracy White removed a removable distance marker that was in her line of flight.
Each individual fiber has a distance marker indicating the correct position of connector placement, allowing accuracy down to a few inches or less, depending on overall cable length.
Having invested in new targets his first move was to take up the posts and replace them with a simulated green complete with flagstick and distance marker.
Valencia 204, Hart 204: Valencia lowered its own school course record at Vista Valencia GC by three shots but wound up in a nonleague tie with Foothill League rival Hart of Newhall when sophomore Tracy White was assessed a one-stroke penalty for removing a removable distance marker that was in her line of flight.
Due to a terrorist act on December 23, a railway bridge over the Kalchik River was blown up near the 1,260 km distance marker, which was both an important avenue for the supply of raw materials to the plants and a key delivery route for finished products to port.
child exercise bike for children 3 to 7 years as perillla seat adjustable speed controller with travel distance marker and energy used.
Extending the existing walking trail with distance markers and miscellaneous hardscape construction and/or replacement.
Astronomers use Cepheids as distance markers because the brighter the star, the slower it pulsates.
Also, the course does not have any distance markers, forcing golfers to be more creative.

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