Raytheon Model TDU-850 A-3
A.3 Raytheon Model TDU-850
The Raytheon Model TDU-850 printer is a high speed gray shade printer that uses a fixed
thermal head to produce a hard copy image on direct recording thermal paper. The general
specifications for the Model TDU-850 printer are listed in Table A-4.
Table A-4:
Raytheon Model TDU-850 General Specifications
Paper width: 22.2 cm (8.75 in.)
Active scan length: 21.6 cm (8.5 in.)
Paper roll length: 61 m (165 ft)
Resolution: 8 dots/mm (203 dots/in.)
Contrast: 23 dB minimum dynamic range
Sweep speed: 256 gray shades at 40 ms/line
Plot speed: 10 ms per line maximum
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