. The Bell System technical journal . erators oscil-loscopes and controls were to be put into small units that could be mountedalongside of the telescopes in the director, and the antenna was to mounton the director. These requirements demanded some important forwardsteps in radar development which will be described in some detail. BeforeRadar Mark 2 got into production a much higher powered transmitter wasdeveloped and with this change the equipment was re-named RadarMark 3. The Mark 3 The general arrangement of apparatus for this radar differed from theMark 1 principally in the indica
. The Bell System technical journal . erators oscil-loscopes and controls were to be put into small units that could be mountedalongside of the telescopes in the director, and the antenna was to mounton the director. These requirements demanded some important forwardsteps in radar development which will be described in some detail. BeforeRadar Mark 2 got into production a much higher powered transmitter wasdeveloped and with this change the equipment was re-named RadarMark 3. The Mark 3 The general arrangement of apparatus for this radar differed from theMark 1 principally in the indicators, which were designed to mount in the 20 BELL SYSTEM TECHNICAL JOURNAL already crowded gun director. These indicators are shown in Figs. 16, 17and 19. Fig. 16 shows the range operators oscilloscope, called the Controland Indicator, which was located near the optical range finder. Adjacentto this unit was mounted the range unit, sliown in Fig. 17 by means ofwhich the operator could select the target to be followed and continuously. Fig. 16—Control & indicator—Radars Mark 2, 3 & 4 maintain accurate range readings. A typical installation of these twounits is shown in Fig. 18. The third unit, shown in Fig. 19, is called aTrain or Elevation Indicator and, in Radar Mark 3 (which was for sur-face fire only) this indicator was mounted adjacent to the Train (azimuth)Operators telescope. In addition to the Train Indicator, the azimuth operator was provided FIRE-CONTROL RADARS FOR NAVAL VESSELS 21
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
